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# BOCA RESEARCH, INC.
SUPER MODEM 2400 (EXT.)
Modem Type Data (synchronous/asynchronous)
Maximum Data Rate 2400bps
Data Bus External
Data Modulation Protocol Bell 103A/212A
ITU-T V.21, V.22, V.22bis
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Line out | CN1 | DC power | CN4 |
|------------------+----------+-------------------+----------|
| Line in | CN2 | Power switch | SW1 |
|------------------+----------+-------------------+----------|
| RS-232/422 | CN3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SMART/DUMB MODE |
|------------------------------------------------------------|
| Setting | JP1 |
|----------------------------------+-------------------------|
| » Smart mode | Closed |
|----------------------------------+-------------------------|
| Dumb mode | Open |
|------------------------------------------------------------|
| Note: Manufacturer’s documentation does not specify pin |
| assignments corresponding to dumb/smart mode settings. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------+----------+--------------------------------|
| HS | Red | On | Modem connected at 2400bps |
|-------+--------+----------+--------------------------------|
| HS | Red | Off | Modem not connected at 2400bps |
|-------+--------+----------+--------------------------------|
| AA | Red | On | Auto-answer enabled |
|-------+--------+----------+--------------------------------|
| AA | Red | Off | Auto-answer disabled |
|-------+--------+----------+--------------------------------|
| AA | Red | Blinking | Phone is ringing |
|-------+--------+----------+--------------------------------|
| CD | Red | On | Carrier signal detected |
|-------+--------+----------+--------------------------------|
| CD | Red | Off | Carrier signal not detected |
|-------+--------+----------+--------------------------------|
| OH | Red | On | Modem is off-hook |
|-------+--------+----------+--------------------------------|
| OH | Red | Off | Modem is on-hook |
|-------+--------+----------+--------------------------------|
| RD | Red | On | Modem is receiving data |
|-------+--------+----------+--------------------------------|
| RD | Red | Off | Modem is not receiving data |
|-------+--------+----------+--------------------------------|
| SD | Red | On | Modem is transmitting data |
|-------+--------+----------+--------------------------------|
| SD | Red | Off | Modem is not transmitting data |
|-------+--------+----------+--------------------------------|
| TR | Red | On | DTR signal is high |
|-------+--------+----------+--------------------------------|
| TR | Red | Off | DTR signal is low |
|-------+--------+----------+--------------------------------|
| MR | Red | On | Power is on |
|-------+--------+----------+--------------------------------|
| MR | Red | Off | Power is off |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S14 |
|------------------------------------------------------------|
| Format | AT [cmds] S14=n [cmds] |
|-----------------+------------------------------------------|
| Example: | ATS14=138<CR> |
|-----------------+------------------------------------------|
| Default: | 138 |
|-----------------+------------------------------------------|
| Range: | 0-190 |
|-----------------+------------------------------------------|
| Unit: | Bit-mapped |
|-----------------+------------------------------------------|
| Description: | Controls echo, result codes, result code |
| | display, smart/dumb mode, dial mode, and |
| | answer/originate mode. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+------------+------------------------------------|
| 0 | 0 | Not used. |
|----------+------------+------------------------------------|
| 1 | 0 » 1 | Command echo disabled. |
| | | |
| | | Command echo enabled. |
|----------+------------+------------------------------------|
| 2 | » 0 1 | Result codes enabled. |
| | | |
| | | Result codes disabled. |
|----------+------------+------------------------------------|
| 3 | 0 » 1 | Display result codes in numeric |
| | | format. |
| | | |
| | | Display result codes in verbose |
| | | format. |
|----------+------------+------------------------------------|
| 4 | » 0 1 | Smart mode. |
| | | |
| | | Dumb mode |
|----------+------------+------------------------------------|
| 5 | » 0 1 | Tone dial enabled. |
| | | |
| | | Pulse dial enabled. |
|----------+------------+------------------------------------|
| 6 | 0 | Not used. |
|----------+------------+------------------------------------|
| 7 | 0 » 1 | Answer mode enabled. |
| | | |
| | | Originate mode enabled. |
|------------------------------------------------------------|
| Note: Bit 4 is not used, in the Internal Super Modem 2400. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S21 |
|------------------------------------------------------------|
| Format | AT [cmds] S21=n [cmds] |
|----------------+-------------------------------------------|
| Example: | ATS21=56<CR> |
|----------------+-------------------------------------------|
| Default: | 56 |
|----------------+-------------------------------------------|
| Range: | 0 - 189 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Selects jack type, CTS signal, low DTR |
| | action, DCD signal, and the Long Space |
| | Disconnect function. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | » 0 1 | Selects RJ-11, RJ-41S, or RJ45S jack. |
| | | |
| | | Selects RJ-12 or RJ-13 jack. |
|----------+-------+-----------------------------------------|
| 1 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 2 | » 0 1 | CTS follows RTS. |
| | | |
| | | CTS forced high. |
|----------+-------+-----------------------------------------|
| 4, 3 | 00 01 | DTR signal ignored. |
| | 10 » | |
| | 11 | Modem goes to command mode on low DTR. |
| | | |
| | | Modem disconnects on low DTR. |
| | | Auto-Answer is disabled. |
| | | |
| | | Modem is initialized on low DTR. |
|----------+-------+-----------------------------------------|
| 5 | 0 » 1 | DCD forced high. |
| | | |
| | | DCD normal. |
|----------+-------+-----------------------------------------|
| 6 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 7 | » 0 1 | Long Space Disconnect function |
| | | disabled. |
| | | |
| | | Long Space Disconnect function enabled. |
|------------------------------------------------------------|
| Note: Bit 2 is not used, in the Internal Super Modem 2400. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S22 |
|------------------------------------------------------------|
| Format | AT [cmds] S22=n [cmds] |
|----------------+-------------------------------------------|
| Example: | ATS22=5<CR> |
|----------------+-------------------------------------------|
| Default: | 5 |
|----------------+-------------------------------------------|
| Range: | 0-126 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls speaker volume and controls, and |
| | limits results codes. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+-------+----------------------------------------|
| 1, 0 | 01 » | On volume. |
| | 10 11 | |
| | | Medium level volume. |
| | | |
| | | High level volume. |
|-----------+-------+----------------------------------------|
| 3, 2 | 00 » | Speaker off. |
| | 01 10 | |
| | 11 | Speaker off on carrier. |
| | | |
| | | Speaker always on. |
| | | |
| | | Speaker on during handshake. |
|-----------+-------+----------------------------------------|
| 6, 5, 4 | » 000 | Basic result codes only enabled. |
| | 100 | |
| | 101 | Basic and connection speed result |
| | 110 | codes enabled. |
| | 111 | |
| | | Basic and connection speed result |
| | | codes and dialtone detection enabled. |
| | | |
| | | All result codes except dialtone |
| | | detection enabled. |
| | | |
| | | All result codes enabled. |
|-----------+-------+----------------------------------------|
| 7 | » 0 1 | 39/61ms at 10pps (North America) |
| | | |
| | | 33/67ms at 10pps (Europe) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S23 |
|------------------------------------------------------------|
| Format | AT [cmds] S23=n [cmds] |
|------------------+-----------------------------------------|
| Example: | ATS23=54<CR> |
|------------------+-----------------------------------------|
| Default: | 54 |
|------------------+-----------------------------------------|
| Range: | 0-183 |
|------------------+-----------------------------------------|
| Unit: | Bit-mapped |
|------------------+-----------------------------------------|
| Description: | Grants/denies remote digital loopback, |
| | controls DTE rate and parity, and sets |
| | guard tone. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+---------+--------------------------------------|
| 0 | » 0 1 | Remote digital loopback denied. |
| | | |
| | | Remote digital loopback allowed. |
|-----------+---------+--------------------------------------|
| 2, 1 | 00 10 » | Sets serial port speed to 0-300bps. |
| | 11 | |
| | | Sets serial port speed to 1200bps. |
| | | |
| | | Sets serial port speed to 2400bps. |
|-----------+---------+--------------------------------------|
| 3 | 0 | Not used. |
|-----------+---------+--------------------------------------|
| 5,4 | 00 01 | Parity even. |
| | 10 » 11 | |
| | | Space parity. |
| | | |
| | | Parity odd. |
| | | |
| | | No Parity. |
|-----------+---------+--------------------------------------|
| 7, 6 | » 00 01 | Guard tone disabled. |
| | 10 | |
| | | Guard tone disabled. |
| | | |
| | | Guard tone 1800Hz enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S27 |
|------------------------------------------------------------|
| Format | AT [cmds] S27=n [cmds] |
|----------------+-------------------------------------------|
| Example: | AT S27=64 <CR> |
|----------------+-------------------------------------------|
| Default: | 64 |
|----------------+-------------------------------------------|
| Range: | 0 - 103 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Selects sync/async mode, Line type, |
| | internal clock, and ITU-T/Bell modes. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 1, 0 | » 00 | Asynchronous mode. |
| | 01 10 | |
| | 11 | Synchronous command mode and |
| | | synchronous connect mode. |
| | | |
| | | Synchronous command mode and |
| | | synchronous connect mode, DTR dialing |
| | | enabled. |
| | | |
| | | Manual originating a synchronous call. |
|----------+-------+-----------------------------------------|
| 2 | » 0 1 | Dial up line. |
| | | |
| | | Leased line. |
|----------+-------+-----------------------------------------|
| 3 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 5, 4 | » 00 | Internal DTE transmit clock source. |
| | 01 10 | |
| | | External DTE transmit clock source. |
| | | |
| | | Slave DTE transmit clock source. |
|----------+-------+-----------------------------------------|
| 6 | 0 » 1 | CCITT mode. |
| | | |
| | | Bell mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Format | AT [cmds] S16=n [cmds] |
|---------------+--------------------------------------------|
| Example: | ATS16=0<CR> |
|---------------+--------------------------------------------|
| Default: | 0 |
|---------------+--------------------------------------------|
| Range: | 0-125 |
|---------------+--------------------------------------------|
| Unit: | Bit-mapped |
|---------------+--------------------------------------------|
| Description: | Controls loopback tests, analog, digital, |
| | remote digital, and self tests. |
|------------------------------------------------------------|
| Bit | Value | Function |
|---------+-------+------------------------------------------|
| 0 | » 0 1 | Local analog loopback not in progress. |
| | | |
| | | Local analog loopback in progress. |
|---------+-------+------------------------------------------|
| 1 | 0 | Not used. |
|---------+-------+------------------------------------------|
| 2 | » 0 1 | Local digital loopback not in progress. |
| | | |
| | | Local digital loopback in progress. |
|---------+-------+------------------------------------------|
| 3 | » 0 1 | Modem not in remote digital loopback. |
| | | |
| | | Remote digital loopback in progress. |
|---------+-------+------------------------------------------|
| 4 | » 0 1 | Remote digital loopback not requested. |
| | | |
| | | Remote digital loopback requested. |
|---------+-------+------------------------------------------|
| 5 | » 0 1 | Remote digital loopback w/ self-test not |
| | | in progress. |
| | | |
| | | Remote digital loopback w/ self-test in |
| | | progress. |
|---------+-------+------------------------------------------|
| 6 | » 0 1 | Local analog loopback w/ self-test not |
| | | in progress. |
| | | |
| | | Local analog loopback w/ self-test in |
| | | progress. |
+------------------------------------------------------------+