
MOTOROLA, INC.

UTA220, UTA220K

Card Type                        ISDN TA
Chip Set                         Unidentified
I/O Options                      25-pin serial ports (4), ISDN U interface
                                 via RJ-48 connector, power
ISDN Data Rate                   128Kbps
ISDN Modulation Protocol         V.120, HDLC
Error Correction/Compression     Unidentified
Data Bus                         External

[Image]

                                CONNECTIONS

        Function           Label             Function              Label

  25-pin serial port 1         CN1       ISDN U interface           CN5
                                         (RJ-48)

  25-pin serial port 2         CN2       Power                      CN6

  25-pin serial port 3         CN3       Power switch               SW1

  25-pin serial port 4         CN4

  Note: Serial ports 3 & 4 are optional, and not featured in standard
  version.

                             DIAGNOSTIC LED(S)

    LED          Color            Status               Condition

    B1            Unidentified      On           B-channel 1 is active

    B1            Unidentified     Off          B-channel 1 is inactive

    B2            Unidentified      On           B-channel 2 is active

    B2            Unidentified     Off          B-channel 2 is inactive

     D            Unidentified      On             All B-channels are
                                                       available

     D            Unidentified   Blinking       Connection is established
                                 (single)         on ISDN U interface

     D            Unidentified   Blinking          Communications are
                                 (double)         established with the
                                                         switch

     D            Unidentified     Off              Connection is not
                                                  established on ISDN U
                                                       interface

    DP            Unidentified      On         D-channel is available for
                                                      packet calls

    DP            Unidentified     Off         D-channel is not available
                                                    for packet calls

     T            Unidentified      On         Unit is conducting a test

     T            Unidentified     Off          Unit is not conducting a
                                                          test

       PW         Unidentified      On                Power is on

       PW         Unidentified     Off                Power is off

                   SUPPORTED COMMAND SET

                     Basic AT Commands

  AT, +++, A/

  A, E, O, V, Z

  &R, &V, &Y, &Z

                        S Registers

  S0, S1, S2, S3, S4, S5, S7, S10, S12, S25, S26



  Note: See MHI Help File for full command documentation.

                         Proprietary AT Command Set

                            COMMUNICATIONS MODE

  Type:           Configuration

  Format:         AT [cmds] &Qn [cmds]

  Description:    Selects communications mode options

    Command                                Mode

      &Q0         Asynchronous mode, serial port speed follows connect
                  speed.

      &Q1         Synchronous connect mode; DTR disc delay.

      &Q2         Synchronous connect mode; DTR dialing

                         DATA CARRIER DETECT (DCD)

  Type:          Configuration

  Format:        AT [cmds] &Cn [cmds]

  Description:   Controls the behaviour of the CD signal.

    Command                              Function

      &C0         DCD forced high.

      &C1         DCD normal.

      &C2         DCD forced low on disconnect.

                           DATA SET READY (DSR)

  Type:               Configuration

  Format:             AT [cmds] &Sn [cmds]

  Description:        Selects DSR options

      Command                              Function

        &S0           DSR forced high

        &S1           DSR high only while modem is handshaking or
                      connected, except in test modes

                                   DIAL

  Type:                  Immediate

  Format:                AT [cmds] D<#> [cmds]

  Description:           Dials telephone number according to any
                         modifiers included in the string

  Note:                  Any combination of modifiers can be used to
                         produce the desired dial functions in sequence.

        Command                              Function

          DS=n           Dial stored telephone number n

           D;            Modem returned to on-line command mode after
                         dialing. The semicolon can only be placed at the
                         end of the dial command.

                               DTR AUTODIAL

  Type:                  Configuration

  Format:                AT [cmds] &Ln [cmds]

  Description:           Causes the TA to repeatedly dial the first
                         stored number on high DTR until it connects.

        Command                              Function

          &L0            DTR autodialing disabled.

          &L1            DTR autodialing enabled.

                                DTR SIGNAL

  Type:                  Configuration

  Format:                AT [cmds] &Dn [cmds]

  Description:           Controls the behaviour of the DTR signal.

        Command                              Function

          &D0             DTR forced high.

          &D1             TA enters command mode when DTR goes low.

          &D2             TA hangs up and returns to command mode on low
                          DTR.

          &D3             TA resets on low DTR.

          &D9             TA dials first stored number on high DTR, hangs
                          up and returns to command mode on low DTR.

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] Wn [cmds]

  Description:   Enables/disables CARRIER/PROTOCOL result codes

    Command                              Function

       W0        CARRIER and PROTOCOL extended result codes are disabled.

       W1        CARRIER and PROTOCOL extended result codes are enabled.

                          FACTORY DEFAULT PROFILE

  Type:             Configuration

  Format:           AT [cmds] &Fn [cmds]

  Description:      Sets values in active profile to values found in the
                    default profile

     Command                              Function

       &F0          Load factory profile 0

       &F1          Load factory profile 1

       &F9          Reloads global profile

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] &Kn [cmds]

  Description:   Enables flow control options

    Command                              Function

      &K0        Flow control disabled

      &K3        RTS/CTS flow control enabled

      &K4        XON/XOFF flow control enabled

      &K5        Transparent XON/XOFF flow control enabled

                               HOOK CONTROL

  Type:          Immediate

  Format:        AT [cmds] H [cmds]

  Description:   Commands modem to go on-hook (hang up)

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0             Reports product ID

       I1        Reports ROM checksum

       I2        Tests and reports ROM checksum

       I3        Reports revision information

                                RESTART NET

  Type:          Configuration

  Format:        AT [cmds] Z9 [cmds]

  Description:   Restarts net

                               RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] Qn [cmds]

  Description:   Enables modem to send result codes to the DTE

    Command                              Function

       Q0        Result code sending enabled

       Q1        Result code sending disabled

       Q2        Result code sending disabled during answer mode

                     SELECT CALL PROGRESS RESULT CODES

  Type:               Configuration

  Format:             AT [cmds] Xn [cmds]

  Description:        Enables selection of tone detection and associated
                      result code format options

      Command                              Function

         X0           Busy and dial tone detection disabled; result codes
                      0 - 4 enabled.

         X1           Result codes 0 - 5 ,10 - 15, 17 - 19, 28, & 32
                      enabled.

         X2           Result codes 0 - 5 ,10 - 15, 17 - 19, 28, & 32
                      enabled.

         X3           Result codes 0 - 5 , 7, 10 - 15, 17 - 19, 28, & 32
                      enabled.

         X4           Result codes 0 - 5 , 7, 10 - 15, 17 - 19, 28, & 32
                      enabled.

                           STORE ACTIVE PROFILE

  Type:            Configuration

  Format:          AT [cmds] &Wn [cmds]

  Description:     Writes the values for the active profile into the
                   non-volatile RAM

     Command                              Function

       &W0         Write the active profile to stored profile 0

       &W1         Write the active profile to stored profile 1

       &W9         Stores global profile

                                TEST MODES

  Type:          Immediate

  Format:        AT [cmds] &Tn

  Description:   Selects test options

    Command                              Function

      &T0        End current test

      &T1        Begin local analog loopback test

      &T3        Begin local digital loopback test

      &T8        Begin bilateral loopback test

      &T9        Begin local terminal loopback test

                          Extended AT Command Set

                                ANSWER MODE

  Type:          Configuration

  Format:        AT [cmds] %A99=x [cmds]

  Description:   Selects the mode the TA will use to answer calls

    Command                              Function

     %A99=N       Normal mode enabled

     %A99=V       Voice mode enabled

                                 DIAL MODE

  Type:          Configuration

  Format:        AT [cmds] %A97=x [cmds]

  Description:   Selects what type of dialing the TA will use.

    Command                              Function

     %A97=E       Enbloc dialing enabled.

     %A97=O       Overlap dialing enabled.

                               ECHO DISABLE

  Type:             Configuration

  Format:           AT [cmds] %A96=n [cmds]

  Description:      Selects whether the TA will send a tone to disable
                    the echo canceller.

      Command                              Function

      %A96=0         TA will not send echo canceller disable tone.

      %A96=1         TA will send echo canceller disable tone.

                             FLOW CONTROL TYPE

  Type:          Configuration

  Format:        AT [cmds] \Qn [cmds]

  Description:   Sets type of flow control used by modem

    Command                              Function

      \Q0        Flow control disabled

      \Q2        Unidirectional RTS/CTS flow control enabled

      \Q3        Bi-directional RTS/CTS flow control enabled

      \Q4        Bi-directional XON/XOFF flow control enabled

      \Q5        Transparent XON/XOFF flow control enabled

      \Q6        Unidirectional XON/XOFF flow control enabled

                              ORIGINATE MODE

  Type:          Configuration

  Format:        AT [cmds] %A98=x [cmds]

  Description:   Selects the mode the TA will use to originate calls

    Command                              Function

     %A98=N       Normal mode enabled

     %A98=V       Voice mode enabled

                                 PROTOCOL

  Type:          Configuration

  Format:        AT [cmds] %A2=n [cmds]

  Description:   Sets the protocol that the TA uses for rate adaptation.

    Command                              Function

     %A2=0        TA will use clear channel mode.

     %A2=1        TA will use TLink.

     %A2=2        TA will use V.120 protocol.

     %A2=3        TA will use Bonding mode

                                  RESTART

  Type:          Immediate

  Format:        AT [cmds] %Z1 [cmds]

  Description:   Restarts UTA

                            TRANSMISSION SPEED

  Type:          Configuration

  Format:        AT [cmds] %A4=n [cmds]

  Description:   Sets the transmission speed of the TA.

    Command                              Function

     %A4=0        Transmission speed is 64Kbps.

     %A4=1        Transmission speed is 56Kbps.

                           V.120 FRAME SELECTION

  Type:          Configuration

  Format:        AT [cmds] %E9=n [cmds]

  Description:   Selects frame usage

    Command                              Function

     %E9=0        I Frames enabled

     %E9=1        UI Frames enabled

                              V.120 PROTOCOL

  Type:          Configuration

  Format:        AT [cmds] %E7=n [cmds]

  Description:   Sets communications mode

    Command                              Function

     %E7=0        Transparent to all bits (SYNC/ASYNC) according to &Q

     %E7=1        Protocols enabled (SDLC)

                         V.120 RECEIVE FRAME SIZE

  Type:          Configuration

  Format:        AT [cmds] %E1=n [cmds]

  Default:       260

  Range:         1 - 260

  Unit:          1 byte

  Description:   Sets the maximum size of a received V.120 frame.

                         V.120 TRANSMIT FRAME SIZE

  Type:          Configuration

  Format:        AT [cmds] %E0=n [cmds]

  Default:       260

  Range:         1 - 260

  Unit:          1 byte

  Description:   Sets the maximum size of a transmitted V.120 frame.

                           V.120 TRANSMIT TIMER

  Type:          Configuration

  Format:        AT [cmds] %E3=n [cmds]

  Default:            5

  Range:         1 - 255

  Unit:          Unidentified

  Description:   Sets the V.120 T200 transmission timer.

                             V.120 WINDOW SIZE

  Type:          Configuration

  Format:        AT [cmds] %E2=n [cmds]

  Default:       8

  Range:         1 - 127

  Unit:          Unidentified

  Description:   Sets the size of the V.120 window.

                             X.25 AUTO-ANSWER

  Type:             Configuration

  Format:           AT [cmds] %B97=x [cmds]

  Description:      Sets whether the TA will auto-answer an incoming X.25
                    virtual call.

     Command                              Function

      %B97=D        Auto-answer disabled.

      %B97=E        Auto-answer enabled.

                            X.25 CALL CHARGING

  Type:          Configuration

  Format:        AT [cmds] %B10=n [cmds]

  Description:   Sets the type of call charging for X.25.

    Command                              Function

     %B10=0       X.25 will use normal call charging.

     %B10=1       X.25 will use reverse call charging.

                          X.25 CLOSED USER GROUP

  Type:          Configuration

  Format:        AT [cmds] %B8=n [cmds]

  Description:   Selects the type of Closed User Group used for X.25.

    Command                              Function

     %B8=0        CUG not used.

     %B8=1        Basic CUG used.

     %B8=2        CUG with outgoing access only used.

     %B8=3        CUG will full access used.

                         X.25 CLOSED USER GROUP ID

  Type:          Configuration

  Format:        AT [cmds] %B9=nnnn [cmds]

  Default:       0000

  Unit:          ASCII

  Description:   Sets the ID for the X.25 CUG.

                           X.25 CODE - INCOMING

  Type:          Read-only

  Format:        AT [cmds] %B16 [cmds]

  Description:   Stores the result code for incoming X.25 virtual calls.

     Value                                Meaning

       0          Call was not redirected.

       1          Station was busy.

       9          Station was out of order.

       15         Call was redirected.

                           X.25 CODE - OUTGOING

  Type:          Read-only

  Format:        AT [cmds] %B15 [cmds]

  Description:   Stores the result code for outgoing X.25 virtual calls.

     Value                                Meaning

       0          Call was not redirected.

       1          Station was busy.

       7          Call was within a hunt group.

       9          Station was out of order.

       15         Call was redirected.

                          X.25 D-BIT CONFIRMATION

  Type:          Configuration

  Format:        AT [cmds] %B7=n [cmds]

  Description:   Enablbes/disables X.25 D-bit confirmation

    Command                              Function

     %B7=0        X.25 D-bit confirmation disabled.

     %B7=1        X.25 D-bit confirmation enabled.

                           X.25 LOGICAL CHANNEL

  Type:          Configuration

  Format:        AT [cmds] %B6=n [cmds]

  Default:       1

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Selects the logical channel for X.25 operation.

                          X.25 PACKET CALL TIMER

  Type:          Configuration

  Format:        AT [cmds] %B98=n [cmds]

  Default:       180

  Range:         0 - 600

  Unit:          Unidentified

  Description:   Sets the packet call timer for X.25 operation.

                        X.25 OUTGOING CALL ADDRESS

  Type:          Configuration

  Format:        AT [cmds] %B17=nnnn [cmds]

  Default:       0

  Range:         0 - 15

  Unit:          Unidentified

  Description:   Sets the address for an outgoing X.25 virtual call.

                                 X.25 PVC

  Type:          Configuration

  Format:        AT [cmds] %B5=n [cmds]

  Description:   Selects whether X.25 will use Permanent Virtual Channel.

    Command                              Function

     %B5=0        X.25 PVC disabled.

     %B5=1        X.25 PVC enabled.

                         X.25 RECEIVE PACKET SIZE

  Type:          Configuration

  Format:        AT [cmds] %B2=n [cmds]

  Default:       0

  Range:         0, 7 - 10

  Unit:          Unidentified

  Description:   Sets the size of the received packets for X.25.

                          X.25 RECEIVE THROUGHPUT

  Type:          Configuration

  Format:        AT [cmds] %B11=n [cmds]

  Description:   Sets the throughput for receiving X.25.

    Command                              Function

     %B11=0       Use network speed.

     %B11=3       Throughput set to 75bps.

     %B11=4       Throughput set to 110bps.

     %B11=5       Throughput set to 300bps.

     %B11=6       Throughput set to 600bps.

     %B11=7       Throughput set to 1200bps.

     %B11=8       Throughput set to 2400bps.

     %B11=9       Throughput set to 4800bps.

    %B11=10       Throughput set to 9600bps.

    %B11=11       Throughput set to 19.2Kbps.

    %B11=12       Throughput set to 48Kbps.

    %B11=13       Throughput set to 64Kbps.

                         X.25 RECEIVE WINDOW SIZE

  Type:          Configuration

  Format:        AT [cmds] %B0=n [cmds]

  Default:       0

  Range:         0 - 8

  Unit:          Unidentified

  Description:   Sets the size of the X.25 receive window.

                              X.25 RESET CODE

  Type:          Read-only

  Format:        AT [cmds] %B20 [cmds]

  Description:   Reports the reason for an X.25 reset.

     Value                                Meaning

       0          Normal operation - no reset has occurred.

       1          DTE caused reset.

       2          Local procedure error occurred.

       3          Destination address is incompatible.

       4          Network is busy.

       5          Remote procedure error occurred.

       6          Cause of reset unknown.

                             X.25 RESET TIMER

  Type:          Configuration

  Format:        AT [cmds] %B99=n [cmds]

  Default:       180

  Range:         0 - 600

  Unit:          Unidentified

  Description:   Sets the reset timer for X.25 operation.

                                 X.25 RPOA

  Type:          Configuration

  Format:        AT [cmds] %B14=xxxx [cmds]

  Default:       0000

  Range:         0 - 16

  Unit:          Unidentified

  Description:   Sets the RPOA for X.25.

                            X.25 TRANSMIT DELAY

  Type:          Configuration

  Format:        AT [cmds] %B19=n [cmds]

  Default:       0

  Range:         0 - 65535

  Unit:          1ms

  Description:   Sets the delay time for X.25 transmission.

                         X.25 TRANSMIT PACKET SIZE

  Type:          Configuration

  Format:        AT [cmds] %B3=n [cmds]

  Default:       0

  Range:         0, 7 - 10

  Unit:          Unidentified

  Description:   Sets the size of the transmitted packets for X.25.

                         X.25 TRANSMIT THROUGHPUT

  Type:          Configuration

  Format:        AT [cmds] %B12=n [cmds]

  Description:   Sets the throughput for transmitting X.25.

    Command                              Function

     %B12=0       Use network speed.

     %B12=3       Throughput set to 75bps.

     %B12=4       Throughput set to 110bps.

     %B12=5       Throughput set to 300bps.

     %B12=6       Throughput set to 600bps.

     %B12=7       Throughput set to 1200bps.

     %B12=8       Throughput set to 2400bps.

     %B12=9       Throughput set to 4800bps.

    %B12=10       Throughput set to 9600bps.

    %B12=11       Throughput set to 19.2Kbps.

    %B12=12       Throughput set to 48Kbps.

    %B12=13       Throughput set to 64Kbps.

                         X.25 TRANSMIT WINDOW SIZE

  Type:          Configuration

  Format:        AT [cmds] %B1=n [cmds]

  Default:       0

  Range:         0 - 8

  Unit:          Unidentified

  Description:   Sets the size of the X.25 transmit window.

                              X.25 USER DATA

  Type:          Configuration

  Format:        AT [cmds] %B18=xxxx [cmds]

  Default:       0000

  Range:         0 - 12

  Unit:          Unidentified

  Description:   Sets miscellaneous user data for X.25.

                               X.25 USER ID

  Type:          Configuration

  Format:        AT [cmds] %B13=xxxx [cmds]

  Default:       0

  Range:         0 - 16

  Unit:          Unidentified

  Description:   Sets the network user ID for X.25.

                         X.3 PAD ANCILLARY DEVICE

  Type:          Configuration

  Format:        AT [cmds] %L5=n [cmds]

  Description:   Selects control of an ancillary device by the PAD.

    Command                              Function

     %L5=0        Device disabled.

     %L5=1        Device enabled for data transfer only.

     %L5=2        Device enabled for data transfer and command control.

                          X.3 PAD BREAK RESPONSE

  Type:              Configuration

  Format:            AT [cmds] %L7=n [cmds]

  Description:       Sets action the PAD takes in response to receiving a
                     BREAK from the DTE.

      Command                              Function

       %L7=0         Response disabled

       %L7=1         Send interrupt packet

       %L7=2         Send reset packet

       %L7=5         Send interrupt and indication of break packets

       %L7=8         Escape from data state

       %L7=21        Send interrupt and indication of break packets and
                     set %L8 to 1

                     X.3 PAD - CARRIAGE RETURN PADDING

  Type:          Configuration

  Format:        AT [cmds] %L9=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Sets the amount of padding after a carriage return.

                    X.3 PAD CARRIAGE RETURN TRANSLATION

  Type:                  Configuration

  Format:                AT [cmds] %L13=n [cmds]

  Default:               0

  Range:                 0 - 7

  Description:           Selects when the PAD will add line feeds to
                         carriage returns.

      Bit         Value                       Function

       0                0   PAD will not add a line feed after a carriage
                            return being sent to the DTE.
                       1
                            PAD will add a line feed after a carriage
                            return being sent to the DTE.

       1                0   PAD will not add a line feed after a carriage
                            return being received from the DTE.
                       1
                            PAD will add a line feed after a carriage
                            return being received from the DTE.

       2                0   PAD will not add a line feed after a carriage
                            return being echoed.
                       1
                            PAD will add a line feed after a carriage
                            return being echoed.

                         X.3 PAD CHARACTER DELETE

  Type:          Configuration

  Format:        AT [cmds] %L16=n [cmds]

  Default:       8

  Range:         0 - 127

  Unit:          1 ASCII character

  Description:   Sets the character used for character deletion.

                           X.3 PAD DATA EDITING

  Type:           Configuration

  Format:         AT [cmds] %L15=n [cmds]

  Description:    Selects whether editing the data being transferred is
                  allowed.

     Command                              Function

     %L15=0        Editing disabled.

     %L15=1        Editing enabled.

                           X.3 PAD DISCARD DATA

  Type:          Configuration

  Format:        AT [cmds] %L8=n [cmds]

  Description:   Selects whether the PAD will deliver data to the DTE.

    Command                              Function

     %L8=0        Deliver data to the DTE.

     %L8=1        Discard data.

                            X.3 PAD - DTE SPEED

  Type:              Configuration

  Format:            AT [cmds] %L11=n [cmds]

  Description:       Sets the speed of operation for the serial port when
                     using the X.25 PAD.

      Command                              Function

       %L11=2        Set serial port speed to 300bps.

       %L11=3        Set serial port speed to 1200bps.

       %L11=4        Set serial port speed to 600bps.

      %L11=12        Set serial port speed to 2400bps.

      %L11=13        Set serial port speed to 4800bps.

      %L11=14        Set serial port speed to 9600bps.

      %L11=15        Set serial port speed to 19.2Kbps.

      %L11=16        Set serial port speed to 38.4Kbps.

                               X.3 PAD ECHO

  Type:           Configuration

  Format:         AT [cmds] %L2=n [cmds]

  Description:    Selects whether PAD functions will echo incoming
                  characters.

     Command                             Function

      %L2=0       PAD echo disabled.

      %L2=1       PAD echo enabled.

                             X.3 PAD ECHO MASK

  Type:                  Configuration

  Format:                AT [cmds] %L20=n [cmds]

  Default:               248

  Range:                 0 - 255

  Description:           Selects which control characters will be echoed.

      Bit         Value                       Function

       0                0   Carriage return will be echoed.

                       1    Carriage return will not be echoed.

       1                0   Line feed will be echoed.

                       1    Line feed will not be echoed.

       2                0   The control characters VT, HT, and form feeds
                            will be echoed.
                       1
                            The control characters VT, HT, and form feeds
                            will not be echoed.

       3                0   Bells and backspaces will be echoed.

                       1    Bells and backspaces will not be echoed.

       4                0   The control character ENQ and escapes will be
                            echoed.
                       1
                            The control character ENQ and escapes will
                            not be echoed.

       5                0   The control characters ACK, NAK, STX, SOH,
                            EOT, ETB, and ETX will be echoed.
                       1
                            The control characters ACK, NAK, STX, SOH,
                            EOT, ETB, and ETX will not be echoed.

       6                0   Parameters 16, 17, and 18 will be echoed.

                       1    Parameters 16, 17, and 18 will not be echoed.

       7                0   All other control characters will be echoed.

                       1    All other control characters will not be
                            echoed.

                           X.3 PAD FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] %L12=n [cmds]

  Description:   Selects flow control for the X.25 PAD.

    Command                              Function

     %L12=0       Flow control disabled.

     %L12=1       Flow control enabled.

                            X.3 PAD FORWARDING

  Type:                Configuration

  Format:              AT [cmds] %L3=n [cmds]

  Default:             2

  Range:               0 - 127

  Description:         Selects which characters will be forwarded through
                       the PAD.

     Bit         Value                       Function

      0               0   Alphanumeric characters will not be forwarded.

                     1    Alphanumeric characters (A-Z, a-z, 0-9) will be
                          forwarded.

      1               0   Carriage returns will not be forwarded.

                     1    Carriage returns will be forwarded.

      2               0   The control characters ENQ, ACK, bells, and
                          escapes will not be forwarded.
                     1
                          The control characters ENQ, ACK, bells, and
                          escapes will be forwarded.

      3               0   The control characters CAN, DC2, and delete
                          will not be forwarded.
                     1
                          The control characters CAN, DC2, and delete
                          will be forwarded.

      4               0   The control characters ETX and EOT will not be
                          forwarded.
                     1
                          The control characters ETX and EOT will be
                          forwarded.

      5               0   The control characters HT, LT, VT, and form
                          feeds will not be forwarded.
                     1
                          The control characters HT, LT, VT, and FF will
                          be forwarded.

      6               0   All other control characters will not be
                          forwarded.
                     1
                          All other control characters will be forwarded.

                             X.3 PAD IDLE TIME

  Type:          Configuration

  Format:        AT [cmds] %L4=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Sets the PADs idle time delay.

                            X.3 PAD LINE DELETE

  Type:          Configuration

  Format:        AT [cmds] %L17=n [cmds]

  Default:       24

  Range:         0 - 127

  Unit:               1 ASCII character

  Description:   Sets the character used for line deletion.

                           X.3 PAD LINE DISPLAY

  Type:          Configuration

  Format:        AT [cmds] %L18=n [cmds]

  Default:       18

  Range:         0 - 127

  Unit:          1 ASCII character

  Description:   Sets the character used for line display.

                        X.3 PAD - LINE FEED PADDING

  Type:          Configuration

  Format:        AT [cmds] %L14=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Sets the amount of padding after a line feed.

                           X.25 PAD - LINE WRAP

  Type:          Configuration

  Format:        AT [cmds] %L10=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          1 character

  Description:   Sets the length of a line for the X.25 PAD.

                             X.3 PAD PAGE WAIT

  Type:          Configuration

  Format:        AT [cmds] %L22=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Sets the amount of padding after a form feed.

                              X.3 PAD PARITY

  Type:          Configuration

  Format:        AT [cmds] %L21=n [cmds]

  Description:   Selects the format of the parity bit.

    Command                              Function

     %L21=0       No parity.

     %L21=3       Use setting in @P3.

                              X.3 PAD RECALL

  Type:                  Configuration

  Format:                AT [cmds] %L1=n [cmds]

  Default:               0

  Range:                 0, 1, 32 - 126

  Unit:                  ASCII

  Description:           Sets the character for PAD recall. %L1=0
                         disables recall, %L1=1 selects DLE control
                         character.

                          X.3 PAD SERVICE SIGNALS

  Type:           Configuration

  Format:         AT [cmds] %L6=n [cmds]

  Description:    Selects which PAD service signals will be sent to the
                  user.

    Command                              Function

     %L6=0        No signals will be sent.

     %L6=1        All signals except prompt will be sent.

     %L6=5        All signals will be sent.

                    X.3 PAD SERVICE SIGNAL DESTINATION

  Type:          Configuration

  Format:        AT [cmds] %L19=n [cmds]

  Description:   Selects where PAD service signals will be sent.

    Command                              Function

     %L19=0       Signals will not be sent.

     %L19=1       Signals will be sent to the printer.

     %L19=2       Signals will be sent to the monitor.

                              Special Commands

                                COMMAND SET

  Type:          Configuration

  Format:        AT [cmds] @P1=x [cmds]

  Description:   Selects the command set that will be used.

    Command                              Function

     @P1=A        AT command set enabled.

     @P1=E        EIA-366 enabled

     @P1=N        Command sets disabled.

     @P1=VB       V.25bis command set enabled in Bisync mode.

     @P1=VH       V.25bis command set enabled in HDLC mode.

                          CONTROL PORT SELECTION

  Type:          Immediate

  Format:        AT [cmds] >Cn [cmds]

  Description:   Selects control port

    Command                              Function

      >C0         Exits control mode

      >C1         Control port 1 enabled

      >C2         Control port 2 enabled

      >C3         Control port 3 enabled

      >C4         Control port 4 enabled

                                DATA LENGTH

  Type:          Configuration

  Format:        AT [cmds] @P4=n [cmds]

  Description:   Selects the length of the data word.

    Command                              Function

     @P4=7        7 bit word length.

     @P4=8        8 bit word length.

                                DATA PARITY

  Type:          Configuration

  Format:        AT [cmds] @P3=x [cmds]

  Description:   Selects the format of the parity bit.

    Command                              Function

     @P3=E        Even parity.

     @P3=M        Mark parity.

     @P3=N        No parity.

     @P3=O        Odd parity.

                                 DATA STOP

  Type:          Configuration

  Format:        AT [cmds] @P6=n [cmds]

  Description:   Selects the number of stop bits.

    Command                              Function

     @P6=0        One stop bit.

     @P6=1        One and a half stop bits.

     @P6=2        Two stop bits.

                             DIRECTORY NUMBER

  Type:          Configuration

  Format:        AT !N=<#>

  Default:       0

  Range:         0 - 20

  Description:   Sets the directory number by port

                           DISPLAY CONFIGURATION

  Type:          Immediate

  Format:        AT [cmds] >V=x [cmds]

  Description:   Displays information about the current configuration.

    Command                              Function

      >V=C        Displays directory numbers, SPIDs, and TEIs.

      >V=G        Displays global parameters.

                             FRONT PANEL LOCK

  Type:          Configuration

  Format:        AT [cmds] >Fn [cmds]

  Description:   Prevents front panel configuration changes.

    Command                              Function

      >F0         All actions allowed from front panel.

      >F1         Configuration changes from front panel not allowed.

      >F2         No actions allowed from front panel.

                          LOCAL SERIAL PORT SPEED

  Type:                  Configuration

  Format:                AT [cmds] @P2=n [cmds]

  Description:           Sets the speed of operation for the serial port.
                         Speeds higher than 38.4Kbps disables autobaud

  Note:                  Spee can be entered using command code or by
                         entering the bit rate value

        Command                              Function

         @P2=3            Set serial port speed to 300bps.

         @P2=5            Set serial port speed to 1200bps.

         @P2=6            Set serial port speed to 2400bps.

         @P2=7            Set serial port speed to 4800bps.

         @P2=9            Set serial port speed to 9600bps.

         @P2=12           Set serial port speed to 19.2Kbps.

         @P2=13           Set serial port speed to 38.4Kbps.

         @P2=17           Set serial port speed to 56.0Kbps.

         @P2=18           Set serial port speed to 57.6Kbps.

         @P2=19           Set serial port speed to 64.0Kbps.

         @P2=20           Set serial port speed to 112.0Kbps.

         @P2=21           Set serial port speed to 128.0Kbps.

         @P2=22           Set serial port speed to 115.2Kbps.

         @P2=32           Set serial port speed to 48.0Kbps.

                                SPID NUMBER

  Type:          Configuration

  Format:        AT [cmds] !C2=n [cmds]

  Default:       0

  Range:         0 - 20

  Unit:          Unidentified

  Description:   Sets the SPID number associated with a particular port

                                SWITCH TYPE

  Type:           Configuration

  Format:         AT [cmds] !C0=n [cmds]

  Description:    Selects what type of network switch the TA is connected
                  to.

    Command                              Function

     !C0=0        TA is connected to 5ESS switch.

     !C0=1        TA is connected to DMS-100 switch.

     !C0=2        TA is connected to NI-1 switch.

                              SWITCH VERSION

  Type:           Configuration

  Format:         AT [cmds] !C1=n [cmds]

  Description:    Selects what version of network switch the TA is
                  connected to.

     Command                              Function

      !C1=0        TA is connected to point-to-point 5ESS switch.

      !C1=1        TA is connected to multipoint 5ESS switch.

      !C1=2        TA is connected to IC-0 DMS-100 switch.

      !C1=3        TA is connected to IC-1 DMS-100 switch.

      !C1=4        TA is connected to NI-1 switch.

                               TEI DATA SET

  Type:                  Configuration

  Format:                AT [cmds] !D3=n [cmds]

  Default:               127

  Range:                 0 - 63, 255

  Description:           Determines data Terminal Endpoint Identifier.
                         !D3=127 disables function. !D3=255 sets
                         parameter to auto

                               TEI X.25 SET

  Type:                  Configuration

  Format:                AT [cmds] !D0=n [cmds]

  Default:               127

  Range:                 0 - 63, 255

  Description:           Determines the Terminal Endpoint Identifier for
                         X.25. !D0=127 disables function. !D0=255 sets
                         parameter to auto

                                TEST MODES

  Type:          Configuration

  Format:        AT [cmds] >Tn [cmds]

  Description:   Enables/disables test modes.

    Command                              Function

      >T0         End test

      >T4         2B+D loopback

                                 TLINK DTR

  Type:          Configuration

  Format:        AT [cmds] @T1=x [cmds]

  Description:   Controls data terminal ready function in TLink mode

    Command                              Function

     @T1=A        DTR forced high

     @T1=N        DTR normal

                                TLINK ECHO

  Type:          Configuration

  Format:        AT [cmds] @T0=x [cmds]

  Description:   Enables/disables TLink echo function

    Command                              Function

     @T0=E        TLink echo function enabled

     @T0=D        TLink echo function disabled

                             TLINK NEGOTIATION

  Type:          Configuration

  Format:        AT [cmds] @T3=x [cmds]

  Description:   Enables/disables TLink negotiation

    Command                              Function

     @T3=E        TLink negotiation enabled

     @T3=D        TLink negotiation disabled

                                 TLINK RTS

  Type:          Configuration

  Format:        AT [cmds] @T1=x [cmds]

  Description:   Controls request to send function in TLink mode

    Command                              Function

     @T2=A        RTS forced high

     @T2=N        RTS normal

                               WRITE PROTECT

  Type:                  Configuration

  Format:                AT [cmds] @G=x [cmds]

  Description:           Selects the ability to prevent permanent changes
                         to the TAs configuration from being made. All
                         changes made in temporary memory will be reset
                         at the end of every call.

        Command                              Function

          @G=D           Write protect disabled.

          @G=E           Write protect enabled.

                              X.25 D-CHANNEL

  Type:          Configuration

  Format:        AT [cmds] !C3=n [cmds]

  Description:   Selects whether X.25 will be used on the D-channel.

    Command                              Function

     !C3=0        X.25 disabled on D-channel.

     !C3=1        X.25 enabled on D-channel.

                 X.25 D-CHANNEL - CHANNELS, BIDIRECTIONAL

  Type:           Configuration

  Format:         AT [cmds] !X6=n [cmds]

  Default:        8

  Range:          0 - 255

  Unit:           Unidentified

  Description:    Sets the number of bidirectional logical channels for
                  X.25.

                    X.25 D-CHANNEL - CHANNELS, INCOMING

  Type:          Configuration

  Format:        AT [cmds] !X5=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Sets the number of incoming logical channels for X.25.

                    X.25 D-CHANNEL - CHANNELS, OUTGOING

  Type:          Configuration

  Format:        AT [cmds] !X7=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Sets the number of outgoing logical channels for X.25.

                    X.25 D-CHANNEL - CHANNELS, VIRTUAL

  Type:          Configuration

  Format:        AT [cmds] !X4=n [cmds]

  Default:       0

  Range:         0 - 255

  Unit:          Unidentified

  Description:   Sets the number of permanent virtual channels for X.25.

                         X.25 D-CHANNEL - MODULUS

  Type:          Configuration

  Format:        AT [cmds] !X8=n [cmds]

  Default:       8

  Range:         8, 128

  Unit:          Unidentified

  Description:   Sets the sequence modulus for X.25.

                       X.25 D-CHANNEL - NEGOTIATION

  Type:          Configuration

  Format:        AT [cmds] !D1=n [cmds]

  Description:   Selects X.25 parameter negotiation.

    Command                              Function

     !D1=0        X.25 negotiation disabled.

     !D1=1        X.25 negotiation enabled.

                   X.25 D-CHANNEL - RECEIVE PACKET SIZE

  Type:          Configuration

  Format:        AT [cmds] !X2=n [cmds]

  Description:   Sets the size of the received packets for X.25.

    Command                              Function

     !X2=7        Packet size set to 128 bytes.

     !X2=8        Packet size set to 256 bytes.

                   X.25 D-CHANNEL - RECEIVE WINDOW SIZE

  Type:          Configuration

  Format:        AT [cmds] !X0=n [cmds]

  Default:       2

  Range:         1 - 7

  Unit:          N/A

  Description:   Sets the size of the X.25 receive window.

                   X.25 D-CHANNEL - TRANSMIT PACKET SIZE

  Type:          Configuration

  Format:        AT [cmds] !X3=n [cmds]

  Description:   Sets the size of the transmitted packets for X.25.

    Command                              Function

     !X3=7        Packet size set to 128 bytes.

     !X3=8        Packet size set to 256 bytes.

                   X.25 D-CHANNEL - TRANSMIT WINDOW SIZE

  Type:          Configuration

  Format:        AT [cmds] !X1=n [cmds]

  Default:       2

  Range:         1 - 7

  Unit:          N/A

  Description:   Sets the size of the X.25 transmit window.

