MICROCOM, INC. QX/4232BIS+ Card Type Modem (synchronous/asynchronous) Processor Z80 Processor Speed 10MHz Maximum Onboard Memory 64KB DRAM Maximum Data Rate 14.4Kbps Data Bus Serial Data Modulation Bell 103A/212A ITU-T V.21, V.22, V.23, V.22bis, V.32, V.32bis Error Correction/Compression MNP5, MNP10, V.42, V.42bis [Image] CONNECTIONS Function Label Function Label Line out CN1 Volume control R1 Line in CN2 Talk/Data switch SW4 AC power in CN3 Originate/Answer switch SW5 RS232/422 port CN4 Reset switch SW6 USER CONFIGURABLE SETTINGS Setting Label Position Minimum receive signal level set to -43 JP4 Pins 1 & 2 dBm closed Minimum receive signal level set to -33 JP4 Pins 2 & 3 dBm closed Factory configured - do not alter JP8/A Closed Factory configured - do not alter JP8/B Open Factory configured - do not alter JP8/C Open Factory configured - do not alter JP9/A Closed Factory configured - do not alter JP9/B Open Factory configured - do not alter JP9/C Open USER CONFIGURABLE SETTINGS (CON’T) Setting Label Position Pin 1 of serial port connected to signal JP10 Pins 2 & 3 ground closed Pin 1 of serial port connected to JP10 Pins 1 & 2 chassis ground closed Pin 18 has no function JP11/A Open Modem performs local analog loopback JP11/A Closed test when pin 18 goes high Factory configured - do not alter (for SW3/7 On North America) Factory configured - do not alter (for SW3/8 On North America) Note: If pin 18 is enabled, busy out must be disabled. LINE TYPE SELECTION Setting JP1/A JP1/B JP1/C Leased line (0 dBm) Open Open Closed Permissive (-10 dBm) Closed Open Open Programmable (-12 Open Closed Open dBm) BUSY OUT SELECTION Setting JP11/B JP11/C Busy out enabled Closed Open Busy out disabled Open Closed Note: If busy out is enabled, pin 18 must be disabled. LEASED LINE TRANSMISSION LEVEL SELECTION Setting SW3/1 SW3/2 SW3/3 -2 dBm On On On -4 dBm Off On On -6 dBm On Off On -8 dBm Off Off On -10 dBm On On Off -12 dBm Off On Off -14 dBm On Off Off -16 dBm Off Off Off SWITCHED LINE TRANSMISSION LEVEL SELECTION Setting SW3/4 SW3/5 SW3/6 -2 dBm On On On -4 dBm Off On On -6 dBm On Off On -8 dBm Off Off On -10 dBm On On Off -12 dBm Off On Off -14 dBm On Off Off -16 dBm Off Off Off CONFIGURATION MODE FUNCTION Mode Function 0 Normal operation of modem - sets power-up defaults for various commands 1 Sets user profile that will be loaded at power-up 2 Performs diagnostic tests 3 Modifies factory default settings loaded by &F command 4 Sets power-up defaults for V.25bis synchronous and dumb synchronous modes Note: The QX/4232bis+ modem can be configured by switches in five modes, although command configuration is preferable when possible. Configuration modes 1, 3, and 4 can be stored in NVRAM by pressing the reset switch. Mode 0 is read on reset or power-up. Before operating, the modem’s switches should be returned to mode 0 and the appropriate settings made. CONFIGURATION MODE SELECTION Mode Command Async/Sync SW1/1 SW1/2 SW1/3 SW1/9 Set 0 AT Async See Off On On mode 0 0 V.25bis Async See On On On mode 0 1 N/A N/A Off Off Off On 2 N/A Async See On Off On mode 2 2 N/A Sync See On Off Off mode 2 3 N/A N/A On Off Off On 4 V.25bis Sync See On On Off mode 4 4 None Sync See Off On Off mode 4 Configuration Mode 0 - Normal Operation USER CONFIGURABLE SETTINGS Setting Label Position Modem goes to command mode and disconnects on SW1/1 On low DTR Modem ignores DTR SW1/1 Off Command echo enabled SW1/4 On Command echo disabled SW1/4 Off Auto-answer on one ring SW1/5 On Auto-answer disabled SW1/5 Off Command sets enabled SW1/8 Off Command sets disabled SW1/8 On Originate/Answer button determines mode SW1/10 On Force answer mode SW1/10 Off Error correction result codes enabled SW2/5 Off Extended result codes disabled SW2/5 On User profile loaded on reset and power up SW2/6 On Factory profile loaded on reset and power up SW2/6 Off Switch configuration enabled SW2/7 Off Switch configuration disabled SW2/7 On Serial port speed locked SW2/8 Off Serial port speed follows connect speed SW2/8 On Note: SW2/8 has no function in V.25bis mode. CD, CTS, AND DSR SIGNAL CONFIGURATION Setting SW1/6 SW1/7 CD, CTS, and DSR forced high On On CD normal, CTS follows CD, DSR On Off follows OH CD, CTS, and DSR forced high Off On except at disconnect CD normal, CTS and DSR forced Off Off high FLOW CONTROL SELECTION Setting SW2/1 SW2/2 Flow control disabled On On Bidirectional XON/XOFF flow On Off control enabled Bidirectional RTS/CTS flow control Off On enabled CTS flow control by DCE enabled Off Off CONNECT MODE SELECTION Setting SW2/3 SW2/4 Normal mode enabled On On MNP reliable mode enabled On Off Auto-reliable mode enabled Off On LAPM or MNP reliable mode Off Off Configuration Mode 1 - User Profile USER CONFIGURABLE SETTINGS Setting Label Position Factory configured - do not alter SW1/6 N/A Factory configured - do not alter SW1/7 N/A Factory configured - do not alter SW1/8 N/A Originate/Answer button determines mode SW1/10 On Force answer mode SW1/10 Off Factory configured - do not alter SW2/1 N/A Factory configured - do not alter SW2/2 N/A Factory configured - do not alter SW2/3 N/A Factory configured - do not alter SW2/4 N/A Factory configured - do not alter SW2/5 N/A Factory configured - do not alter SW2/6 N/A Factory configured - do not alter SW2/7 N/A Factory configured - do not alter SW2/8 N/A USER PROFILE SELECTION Setting SW1/4 SW1/5 User profile 0 On On User profile 1 On Off User profile 2 Off On User profile 3 Off Off Configuration Mode 2 - Diagnostic Testing TOGGLE SWITCHES Function Label Function Label Start or stop test in SW1/1 Start or stop test in SW4 progress progress USER CONFIGURABLE SETTINGS Setting Label Position Modem will perform local digital SW1/4 Off loopback test Modem will not perform local digital SW1/4 On loopback test Modem will perform local analog SW1/5 Off loopback test Modem will not perform local analog SW1/5 On loopback test SW1/5 performs local analog loopback SW1/6 Off with self-test SW1/5 performs local analog loopback SW1/6 On test Factory configured - do not alter SW1/7 N/A Factory configured - do not alter SW1/8 N/A Factory configured - do not alter SW1/10 N/A Factory configured - do not alter SW2/1 N/A Factory configured - do not alter SW2/2 N/A Factory configured - do not alter SW2/3 N/A Factory configured - do not alter SW2/4 N/A Factory configured - do not alter SW2/5 N/A Factory configured - do not alter SW2/6 N/A Factory configured - do not alter SW2/7 N/A Factory configured - do not alter SW2/8 N/A Note: The modem will conduct tests in synchronous or asynchronous mode according to where SW1/9 was set the last time it was reset. Configuration Mode 3 - Factory Default Modification USER CONFIGURABLE SETTINGS Setting Label Position Verbose result codes enabled SW1/6 On Numeric result codes enabled SW1/6 Off Pins 18 and 21 have no function SW1/7 On Perform local analog loopback test when SW1/7 Off pin 18 is high, remote digital loopback test when pin 21 is high \K set to 0 SW1/8 Off \K set to 5 SW1/8 On Originate/Answer button determines mode SW1/10 On Force answer mode SW1/10 Off Inactivity timer disabled SW2/1 On Inactivity timer set to 15 minutes SW2/1 Off Modem-to-modem flow control disabled SW2/2 On Modem-to-modem flow control enabled SW2/2 Off Parity checking of flow control and SW2/3 On escape characters disabled Flow control and escape characters will SW2/3 Off be processed only if their parity matches serial port RESULT CODE CONFIGURATION Setting SW1/4 SW1/5 Result codes enabled On On Result codes disabled On Off Result codes enabled on originate Off N/A only PARITY SELECTION Setting SW2/4 SW2/5 SW2/6 Modem will use eight data On On On bits, no parity Modem will use seven data On On Off bits, odd parity Modem will use seven data On Off On bits, even parity Modem will use seven data On Off Off bits, MARK parity Modem will use seven data Off On On bits, SPACE parity Modem will use eight data Off On Off bits, odd parity Modem will use eight data Off Off On bits, even parity Modem will use eight data Off Off Off bits, MARK parity SPEED SELECTION Setting SW2/7 SW2/8 Serial port speed set to On On 38.4Kbps; line speed set to 14.4Kbps Serial port speed set to On Off 19.2Kbps; line speed set to 14.4Kbps Serial port and line speeds set Off On to 9600bps Serial port speed set to Off Off 57.6Kbps; line speed set to 14.4Kbps Configuration Mode 4 - Synchronous Mode USER CONFIGURABLE SETTINGS Setting Label Position Modem goes to command mode and SW1/1 On disconnects on low-to-high DTR transition Modem ignores DTR SW1/1 Off Originate/Answer button determines mode SW1/10 On Force answer mode SW1/10 Off Pins 18 and 21 have no function SW2/3 On Perform local analog loopback test SW2/3 Off when pin 18 is high, remote digital loopback test when pin 21 is high Auto-answer on one ring SW2/7 Off Auto-answer disabled SW2/7 On Modem will match connect speeds. SW2/8 On Modem will connect only at current speed. SW2/8 Off STORED NUMBER SELECTION Setting SW1/4 SW1/5 Manual dial only On On Dial first stored number when On Off Talk/Data switch is pressed Dial second stored number when Off On Talk/Data switch is pressed Dial third stored number when Off Off Talk/Data switch is pressed LINE TYPE SELECTION Setting SW1/6 SW1/7 SW1/8 Modem is connected to On On On switched line Modem is connected to 2-wire Off On On leased line Modem is connected to 4-wire Off Off On leased line Modem is connected to 2-wire On Off On leased line. After 6 seconds of receiving no input, the modem goes off-hook and attempts to connect. Modem is connected to 4-wire On On Off leased line. After 6 seconds of receiving no input, the modem goes off-hook and attempts to connect. CONNECT SPEED SELECTION Setting SW2/1 SW2/2 Modem will connect at 14.4Kbps On On Modem will connect at 9600bps On Off Modem will connect at 4800bps Off On Modem will connect at 2400bps Off Off CD, CTS, DSR, AND RTS SIGNAL CONFIGURATION Setting SW2/4 SW2/5 SW2/6 CD, CTS, and DSR forced high On On On CD, CTS, and DSR normal On On Off CD, CTS, and DSR forced high On Off On except at disconnect CD normal, CTS and DSR forced On Off Off high CD, CTS, and DSR normal Off On On CD normal, CTS follows RTS, Off On Off DSR forced high CD and CTS use ITU-T V.13 to Off Off On simulate half-duplex modes, DSR normal CD and CTS use ITU-T V.13 to Off Off Off simulate half-duplex modes, DSR forced high DIAGNOSTIC LED(S) (POWER-UP) TST OH HS Condition On Off Off Firmware checksum incorrect On Off Red RAM test failed On Off Green Modem failed On On N/A Modem failed Off Off Off All tests passed DIAGNOSTIC LED(S) (NORMAL OPERATION) LED Color Status Condition PWR Unidentified On Power is on PWR Unidentified Off Power is off TST Unidentified On System error has occurred or modem is retraining TST Unidentified Blinking Serial port is waiting to be configured TST Unidentified One blink Data error has occurred TST Unidentified Off Normal operation OH Unidentified On Modem is off-hook OH Unidentified Off Modem is on-hook HS Red On Modem is connected at, or serial port speed is set to, 300bps HS Red 1 blink Modem is connected at, or serial port speed is set to, 600bps HS Red 2 blinks Modem is connected at, or serial port speed is set to, 1200bps HS Red 3 blinks Modem is connected at, or serial port speed is set to, 2400bps HS Green On Modem is connected at, or serial port speed is set to, 4800bps HS Green 1 blink Modem is connected at, or serial port speed is set to, 7200bps HS Green 2 blinks Modem is connected at, or serial port speed is set to, 9600bps HS Green 3 blinks Modem is connected at, or serial port speed is set to, 12Kbps HS Green 4 blinks Modem is connected at, or serial port speed is set to, 14.4Kbps HS N/A Off Modem is connected at, or serial port speed is set to, 75bps DTR Unidentified On DTR signal is high DTR Unidentified Off DTR signal is low TXD Unidentified Blinking Modem is transmitting data TXD Unidentified Off Modem is not transmitting data RXD Unidentified Blinking Modem is receiving data RXD Unidentified Off Modem is not receiving data SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, B, E, H, I, L, M, O, P, Q, T, V, W, X, Y, Z &D, &F, &G, &M, &P, &T, &W, &X, &Y, &Z Extended AT Commands \A, \B, \C, \E, \J, \N, \Q, \T %A, %C, %E, %F, %G Special AT Commands -J, *H, )M, @M, :E S-Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S14, S16, S18, S22, S23, S25, S26, S27 Note: See MHI documentation for complete information. Proprietary AT Command Set COMMAND SET - V.25bis Type: Immediate Format: [cmds] \M Description: Enables the V.25bis command set. DISPLAY SWITCH SETTINGS Type: Immediate Format: AT [cmds] %Sn [cmds] Description: Displays the modem’s switch settings. Command Function %S0 Display settings of SW1/1-SW1/10. %S1 Display settings of SW2/1-SW2/8. %S2 Display settings of SW3/1-SW3/8. LEASED LINE CALL RESTORAL Type: Configuration Format: AT [cmds] )Pn [cmds] Description: Selects whether the modem will attempt to reconnect with a dial backup call to a leased line MNP reliable mode connection that has terminated abnormally. If the dial backup reconnects successfully, the call will proceed as if it had not disconnected. Command Function )P0 Leased line call restoral disabled. )P1 Leased line call restoral enabled. LEASED LINE COMPROMISE EQUALIZER Type: Configuration Format: AT [cmds] )En [cmds] Description: Selects whether the compromise equalizer will be used for leased line V.32 and V.32bis connections. Command Function )E0 Compromise equalizer disabled. )E1 Compromise equalizer enabled. LEASED LINE DIAL BACKUP Type: Configuration Format: AT [cmds] :Nn [cmds] Description: Selects whether the modem will attempt to connect to the first stored number with a switched line connection if the leased line connection fails. Command Function :N0 Dial backup disabled. :N1 Dial backup enabled. LEASED LINE DIAL BACKUP IN ANSWER MODE Type: Configuration Format: AT [cmds] )Cn [cmds] Description: Selects whether the modem is allowed to execute a dial backup if it is in answer mode. Command Function )C0 Dial backup disabled in answer mode. )C1 Dial backup enabled in answer mode. LEASED LINE MAXIMUM RETRAIN COUNTER Type: Configuration Format: AT [cmds] :Gn [cmds] Description: Sets the number of times the modem is allowed to retrain in the time specified by the :H command before it attempts a dial backup connection. LEASED LINE MAXIMUM RETRAIN TIME Type: Configuration Format: AT [cmds] :Hn [cmds] Default: 0 Range: 0 - 255 Unit: 1 minute Description: Sets the amount of time in which the modem is allowed to retrain the number of times specified by the :G command before it attempts a dial backup connection. LEASED LINE ORIGINATE MODE TIMER Type: Configuration Format: AT [cmds] &Vn [cmds] Default: 5 Range: 0 - 90 Unit: 1 minute Description: Sets the amount of time that the originating modem waits for an answer before attempting a dial backup. LEASED LINE QUALITY Type: Immediate Format: AT [cmds] )F [cmds] Default: N/A Range: 0 - 65535 Unit: N/A Description: Displays the poorest quality of the phone line this connection. Higher numbers indicate a poorer connection. LEASED LINE QUALITY CLEAR Type: Configuration Format: AT [cmds] :Y [cmds] Description: Clears the line quality value reported by )F so that the current line quality may be monitored. LEASED LINE RESTORAL Type: Configuration Format: AT [cmds] )Ln [cmds] Description: Selects whether the modem will attempt to restore a leased line connection while connected with a dial backup connection. Command Function )L0 Modem will not attempt to restore leased line connection. )L1 Modem will attempt to restore leased line connection. LEASED LINE RESTORAL CARRIER TIMER Type: Configuration Format: AT [cmds] )Wn [cmds] Default: 20 Range: 0 - 255 Unit: 1 second Description: Sets the amount of time that the modem waits for a carrier after attempting to restore a leased line connection. If this time expires the modem will begin a dial backup again. LEASED LINE RESTORAL DELAY Type: Configuration Format: AT [cmds] )Xn [cmds] Default: 60 Range: 0 - 60 Unit: 1 minute Description: Sets the amount of time that the modem waits after a successful dial backup to check the leased line to see if service has been re-established. LEASED LINE RESTORAL RETRY DELAY Type: Configuration Format: AT [cmds] )Yn [cmds] Default: 40 Range: 0 - 255 Unit: 1 second Description: Sets the amount of time after a failed attempt to re-connect to the leased line, and while it is performing a dial backup, that the modem watches for a carrier on the leased line. If no carrier is detected within this time the modem proceeds with the dial backup. LEASED LINE RESTORE Type: Immediate Format: AT [cmds] )B [cmds] Description: Initiates a leased line restoral. LINE TYPE Type: Configuration Format: AT [cmds] &Ln [cmds] Description: Selects what type of line the modem is connected to and whether it will attempt to automatically re-connect. Command Function &L0 Modem is connected to switched line. &L1 Modem is connected to 2-wire leased line. &L2 Modem is connected to 4-wire leased line. &L3 Modem is connected to 2-wire leased line. After 6 seconds of receiving no input, the modem goes off-hook and attempts to connect. &L4 Modem is connected to 4-wire leased line. After 6 seconds of receiving no input, the modem goes off-hook and attempts to connect. OPERATING MODE Type: Configuration Format: AT [cmds] $Sn [cmds] Description: Selects whether the modem will operate in asynchronous or synchronous mode. Command Function $S0 Determined by SW1/9. $S1 Force asynchronous mode. $S2 Force synchronous mode. Proprietary V.25bis Command Set COMMAND SET - AT Type: Immediate Format: ATZ Description: Enables the AT command set. CONNECTION SECURITY - PASSWORD SELECTION (ASYNCHRONOUS MODE) Type: Configuration Format: PSW Description: Changes the connection password. The user will be prompted to enter the old and new passwords. Passwords must be exactly five characters, case insensitive. CONNECTION SECURITY - PASSWORD SELECTION (SYNCHRONOUS MODE) Type: Configuration Format: PSWxxxxx;yyyyy Description: Changes the connection password. The xxxxx represents old connection password, and the yyyyy is the new connection password. Passwords must be exactly five characters, case insensitive. See MICROCOM, INC. DESKPORTE FAST for a full command summary.