MULTI-TECH SYSTEMS, INC. ======================== MT64DSU Card Type CSU/DSU Chip Set Unidentified Maximum Data Rate 64Kbps Data Bus External Data Modulation Protocol B8RZ +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |------------------------------------------------------------| | DC power | CN1 | Line out | CN4 | |---------------------------+----------+--------------+------| | RS-232/422 | CN2 | Power switch | SW3 | |---------------------------+----------+--------------+------| | V.35 | CN3 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Setting | Label | Position | |----------------------------------------+--------+----------| | i CSU/DSU will operate in synchronous | SW1/5 | On | | mode | | | |----------------------------------------+--------+----------| | CSU/DSU will operate in asynchronous | SW1/5 | Off | | mode | | | |----------------------------------------+--------+----------| | i RTS signal forced high | SW1/6 | On | |----------------------------------------+--------+----------| | RTS signal normal | SW1/6 | Off | |----------------------------------------+--------+----------| | i DSR signal forced high | SW1/7 | On | |----------------------------------------+--------+----------| | DSR signal normal | SW1/7 | Off | |----------------------------------------+--------+----------| | i Local loopback test disabled | SW1/8 | On | |----------------------------------------+--------+----------| | Local loopback test enabled | SW1/8 | Off | |----------------------------------------+--------+----------| | i Digital loopback test disabled | SW1/9 | On | |----------------------------------------+--------+----------| | Digital loopback test enabled | SW1/9 | Off | |----------------------------------------+--------+----------| | i Remote loopback test disabled | SW1/10 | On | |----------------------------------------+--------+----------| | Remote loopback test enabled | SW1/10 | Off | |----------------------------------------+--------+----------| | i Test pattern disabled | SW1/11 | On | |----------------------------------------+--------+----------| | Test pattern enabled | SW1/11 | Off | |----------------------------------------+--------+----------| | i Elastic store disabled | SW1/12 | On | |----------------------------------------+--------+----------| | Elastic store enabled | SW1/12 | Off | |----------------------------------------+--------+----------| | i 4-wire line is connected | SW2/1 | On | |----------------------------------------+--------+----------| | 2-wire line is connected | SW2/1 | Off | |----------------------------------------+--------+----------| | i Leased line is connected | SW2/2 | On | |----------------------------------------+--------+----------| | Switched line is connected | SW2/2 | Off | |----------------------------------------+--------+----------| | i DTR signal forced high | SW2/3 | On | |----------------------------------------+--------+----------| | DTR signal normal | SW2/3 | Off | |----------------------------------------+--------+----------| | i Factory configured - do not alter | SW2/4 | N/A | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE SPEED | |------------------------------------------------------------| | Synchronous Mode | Asynchronous Mode | SW1/1 | SW1/2 | |------------------+-------------------+----------+----------| | 9600bps | 9600bps | On | On | |------------------+-------------------+----------+----------| | 19.2Kbps | 19.2Kbps | Off | On | |------------------+-------------------+----------+----------| | i 56Kbps | 38.4Kbps | On | Off | |------------------+-------------------+----------+----------| | 64Kbps | 57.6Kbps | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | CLOCK SOURCE | |------------------------------------------------------------| | Setting | SW1/3 | SW1/4 | |--------------------+-------------------+-------------------| | i Remote | On | On | |--------------------+-------------------+-------------------| | Internal | Off | Off | |--------------------+-------------------+-------------------| | External | Off | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |------+-------+----------+----------------------------------| | SD | Red | On | CSU/DSU is transmitting data | |------+-------+----------+----------------------------------| | SD | Red | Off | CSU/DSU is not transmitting data | |------+-------+----------+----------------------------------| | RD | Red | On | CSU/DSU is receiving data | |------+-------+----------+----------------------------------| | RD | Red | Off | CSU/DSU is not receiving data | |------+-------+----------+----------------------------------| | CD | Red | On | Carrier signal detected | |------+-------+----------+----------------------------------| | CD | Red | Off | Carrier signal not detected | |------+-------+----------+----------------------------------| | CTS | Red | On | CTS signal is high | |------+-------+----------+----------------------------------| | CTS | Red | Off | CTS signal is low | |------+-------+----------+----------------------------------| | RTS | Red | On | RTS signal is high | |------+-------+----------+----------------------------------| | RTS | Red | Off | RTS signal is low | |------+-------+----------+----------------------------------| | OL | Red | On | Network signal detected | |------+-------+----------+----------------------------------| | OL | Red | Off | Network signal not detected | |------+-------+----------+----------------------------------| | TM | Red | On | CSU/DSU is in test mode | |------+-------+----------+----------------------------------| | TM | Red | Off | CSU/DSU is not in test mode | |------+-------+----------+----------------------------------| | TM | Red | Blinking | Error detected in test pattern | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | AUTO-ANSWER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S0=n [cmds] | |--------------+---------------------------------------------| | Description: | Controls when the CSU/DSU will | | | automatically answer an incoming call. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | S0=0 | Auto-answer disabled. | |---------------+--------------------------------------------| | S0=1 | CSU/DSU will always answer incoming calls. | |---------------+--------------------------------------------| | i S0=2 | CSU/DSU will answer incoming calls when | | | DTR signal is high. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA LENGTH | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S12=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects how many data bits will be | | | transmitted. | |------------------------------------------------------------| | Command | Function | |-----------------------------+------------------------------| | i S12=0 | 8 data bits. | |-----------------------------+------------------------------| | S12=1 | 7 data bits. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA PARITY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S14=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects what type of parity bit will be | | | transmitted. | |------------------------------------------------------------| | Command | Function | |----------------------------+-------------------------------| | i S14=0 | No parity. | |----------------------------+-------------------------------| | S14=1 | Even parity. | |----------------------------+-------------------------------| | S14=2 | Odd parity. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA STOP | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S13=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects how many stop bits will be | | | transmitted. | |------------------------------------------------------------| | Command | Function | |----------------------------+-------------------------------| | i S13=0 | 1 stop bit. | |----------------------------+-------------------------------| | S13=1 | 1.5 stop bits. | |----------------------------+-------------------------------| | S13=2 | 2 stop bits. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL MODE - ASYNCHRONOUS | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S15=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects how the CSU/DSU will perform | | | dialing in asynchronous mode. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | S15=0 | Asynchronous dialing disabled. | |---------------+--------------------------------------------| | S15=1 | Dial number in memory location 0 on DTR | | | going high. | |---------------+--------------------------------------------| | i S15=2 | AT dialing enabled. | |---------------+--------------------------------------------| | S15=3 | Dial number in memory location 0 on DTR | | | going high and AT dialing enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL MODE - SYNCHRONOUS | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S2=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects how the CSU/DSU will perform | | | dialing in synchronous mode. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | S2=0 | Synchronous dialing disabled. | |---------------+--------------------------------------------| | S2=1 | Dial number in memory location 0 on DTR | | | going high. | |---------------+--------------------------------------------| | i S2=2 | V.25bis dialing enabled. | |---------------+--------------------------------------------| | S2=3 | Dial number in memory location 0 on DTR | | | going high and V.25bis dialing enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DSR SIGNAL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S9=n [cmds] | |--------------+---------------------------------------------| | Description: | Controls the behavior of the DSR signal. | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | i S9=0 | DSR forced high. | |----------------+-------------------------------------------| | S9=1 | DSR low when off-line or in test mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECHO CANCELLER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S7=n [cmds] | |--------------+---------------------------------------------| | Description: | Controls the echo canceller tone. | |------------------------------------------------------------| | Command | Function | |-----------------+------------------------------------------| | i S7=0 | Echo canceller tone disabled. | |-----------------+------------------------------------------| | S7=1 | Echo canceller tone enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HELP | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $ [cmds] | |--------------+---------------------------------------------| | Description: | Displays the help screens. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S3=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects how long the line must be inactive | | | for the CSU/DSU to disconnect. | |------------------------------------------------------------| | Command | Function | |-----------------+------------------------------------------| | i S3=0 | Disconnect on low DTR only. | |-----------------+------------------------------------------| | S3=1 | Set inactivity timer to 10 minutes. | |-----------------+------------------------------------------| | S3=2 | Set inactivity timer to 30 minutes. | |-----------------+------------------------------------------| | S3=3 | Set inactivity timer to 60 minutes. | |-----------------+------------------------------------------| | S3=4 | Set inactivity timer to 10 minutes and | | | disconnect on low DTR. | |-----------------+------------------------------------------| | S3=5 | Set inactivity timer to 30 minutes and | | | disconnect on low DTR. | |-----------------+------------------------------------------| | S3=6 | Set inactivity timer to 60 minutes and | | | disconnect on low DTR. | |-----------------+------------------------------------------| | S3=7 | Do not disconnect on inactivity or low | | | DTR. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REDIAL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S1=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 99 | |--------------+---------------------------------------------| | Unit: | 1 redial | |--------------+---------------------------------------------| | Description: | Sets how many times the CSU/DSU will | | | attempt to redial a failed call. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE CONFIGURATION REQUEST | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S19=n [cmds] | |--------------+---------------------------------------------| | Description: | Controls requests for remote configuration. | |------------------------------------------------------------| | Command | Function | |-----------------+------------------------------------------| | i S19=0 | Remote configuration requests denied. | |-----------------+------------------------------------------| | S19=1 | Remote configuration requests granted. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESET | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *Rn [cmds] | |--------------+---------------------------------------------| | Description: | Resets the CSU/DSU to power-up status. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RTS SIGNAL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S8=n [cmds] | |--------------+---------------------------------------------| | Description: | Controls the behavior of the RTS signal. | |------------------------------------------------------------| | Command | Function | |---------------------------+--------------------------------| | i S8=0 | RTS forced high. | |---------------------------+--------------------------------| | S8=1 | RTS follow CTS. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SYNCH/ASYNCH MODE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S4=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether the CSU/DSU is in | | | synchronous or asynchronous mode. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | i S4=0 | CSU/DSU is in asynchronous mode. | |---------------+--------------------------------------------| | S4=1 | CSU/DSU is in synchronous mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRANSMIT PROFILE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *Wn [cmds] | |--------------+---------------------------------------------| | Description: | Sends the current S-Register and switch | | | settings to the remote CSU/DSU. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.25bis FORMAT | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S16=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects bit- or byte-oriented dialing for | | | V.25bis mode. | |------------------------------------------------------------| | Command | Function | |------------------------+-----------------------------------| | i S16=0 | Bit-oriented dialing. | |------------------------+-----------------------------------| | S16=1 | Byte-oriented dialing. | +------------------------------------------------------------+ Proprietary V.25bis Command Set +------------------------------------------------------------+ | DIAL STORED NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | CRSnn | |--------------+---------------------------------------------| | Description: | Dials the number stored in memory location | | | nn. | +------------------------------------------------------------+