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# SILICOM MULTIMEDIA SYSTEMS, INC.
MODEM MASTER 6000
Card Type Modem
Chip Set Unidentified
Maximum Modem Rate 33.6Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.32ter,
V.32bis, V.34, V.34bis
Fax Modulation ITU-T V.17, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
Fax Class I
Data Bus 8-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| Line out (RJ-11) | CN1 | Line in (RJ-11) | CN2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, E, H, M, O, P, Q, T, V, W, X, Y, Z |
|------------------------------------------------------------|
| &C, &F, &G, &P, &R, &W, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \G, \K, \L, \N |
|------------------------------------------------------------|
| %C, %Q |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S6, S7, S8, S9, S10, S11, S12, S18, |
| S25,S30, S32, S33, S38, S91 |
|------------------------------------------------------------|
| Note: |
| |
| See MHI Help File for full command documentation. |
+------------------------------------------------------------+
PROPRIETARY AT COMMAND SET
+------------------------------------------------------------+
| AUTO-MODE DETECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] N n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects various options for the automatic |
| | detection and negotiation of protocols |
| | during the handshake process if the modem |
| | is communicating with a remote modem of |
| | dissimilar speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| N0 | Auto-mode detection disabled. Handshake |
| | begins at line speed designated by the S37 |
| | register. If S37=0 handshake follows |
| | interface speed |
|--------------+---------------------------------------------|
| N1 | Auto-mode detection enabled. Handshake |
| | begins at line speed designated by the S37 |
| | register. If S37=0 handshake at highest |
| | possible speed with fallback to lower speed |
| | if necessary |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATION PROTOCOLS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] B n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the communication protocol for data |
| | calls |
|------------------------------------------------------------|
| Note: The B command allows the simultaneous selection |
| of more than one suffix, enabling multiple protocols. |
|------------------------------------------------------------|
| Command | Protocol |
|--------------+---------------------------------------------|
| B0 | ITU-T V.22 at 1200bps |
|--------------+---------------------------------------------|
| B1 | Bell 212A at 1200bps |
|--------------+---------------------------------------------|
| B2 | ITU-T V.23 at 75/1200bps in originate mode, |
| | 1200/75bps in answer mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONFIGURATION PROFILES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &V [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays active and stored configuration |
| | profiles |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &V0 | Display active profile |
|--------------+---------------------------------------------|
| &V1 | Display stored profile |
|--------------+---------------------------------------------|
| &V2 | Display stored telephone numbers |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] &S n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Selects DSR options |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| » | &S0 | DSR forced high |
|---+--------------+-----------------------------------------|
| | &S1 | DSR high only while modem is |
| | | handshaking or connected |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA TERMINAL READY (DTR) |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] &D n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Selects modem response to DTR |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| » | &D0 | Modem does not respond to DTR |
|---+--------------+-----------------------------------------|
| | &D1 | Modem goes to command mode on DTR |
| | | toggle |
|---+--------------+-----------------------------------------|
| | &D2 | Modem goes to command mode and |
| | | disconnects (hangs up) on DTR toggle; |
| | | |
| | | Auto-Answer is disabled on low DTR. |
|---+--------------+-----------------------------------------|
| | &D3 | Modem is initialized on DTR toggle |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| DL | Re-dial last number |
|--------------+---------------------------------------------|
| DS=n | Dial stored telephone number n |
|--------------+---------------------------------------------|
| DW | Dialing resumed following dial tone |
| | detection |
|--------------+---------------------------------------------|
| D, | Dialing paused for amount of time specified |
| | in S8 register |
|--------------+---------------------------------------------|
| D! | Flash function initiated. Modem commanded |
| | to go off-hook for specified time before |
| | returning on-hook. |
|--------------+---------------------------------------------|
| D@ | Wait for Quite Answer function enabled. |
| | Modem waits until a "quiet answer," a |
| | ring-back signal followed by silence up to |
| | the time specified in S7, is received prior |
| | to executing the rest of the dial string. |
|--------------+---------------------------------------------|
| D; | Modem returned to idle state after dialing. |
| | The semicolon can only be placed at the end |
| | of the dial command. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] &K n [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 |
|---+--------------+-----------------------------------------|
| | &K6 | Both RTS/CTS & XON/XOFF flow control |
| | | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] I n [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports product code |
|--------------+---------------------------------------------|
| I1 | Reports hardware variation code |
|--------------+---------------------------------------------|
| I2 | Reports internal code |
|--------------+---------------------------------------------|
| I3 | Reports software revision number |
|--------------+---------------------------------------------|
| I4 | Reports product feature listing |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] L n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Controls speaker volume |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| | L0 | Speaker disabled |
|---+--------------+-----------------------------------------|
| » | L1 | Low volume setting |
|---+--------------+-----------------------------------------|
| | L2 | Low volume setting |
|---+--------------+-----------------------------------------|
| | L3 | Low volume setting |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &T n |
|--------------+---------------------------------------------|
| Description: | Selects test options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &T0 | End current test |
|--------------+---------------------------------------------|
| &T1 | Begin local analog loopback test |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRELLIS CODING |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] &U n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Enables/disables trellis coding |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| » | &U0 | V.32 trellis coding enabled |
|---+--------------+-----------------------------------------|
| | &U1 | V.32 trellis coding disabled |
+------------------------------------------------------------+
EXTENDED AT COMMANDS
+------------------------------------------------------------+
| AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] %E n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Controls auto-retrain mode and |
| | | fallback/fall-forward |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| | %E0 | Auto-retrain disabled |
|---+--------------+-----------------------------------------|
| | %E1 | Auto-retrain enabled |
|---+--------------+-----------------------------------------|
| » | %E2 | Auto-retrain and fallback enabled |
|---+--------------+-----------------------------------------|
| | %E3 | Auto-retrain and fast hang-up enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DYNAMIC CPU LOADING |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] %N n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Selects dynamic CPU loading options |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| | %N0 | Dynamic CPU loading disabled |
|---+--------------+-----------------------------------------|
| | %N1 | Dynamic CPU loading not to exceed 10% |
|---+--------------+-----------------------------------------|
| | %N2 | Dynamic CPU loading not to exceed 20% |
|---+--------------+-----------------------------------------|
| | %N3 | Dynamic CPU loading not to exceed 30% |
|---+--------------+-----------------------------------------|
| | %N4 | Dynamic CPU loading not to exceed 40% |
|---+--------------+-----------------------------------------|
| | %N5 | Dynamic CPU loading not to exceed 50% |
|---+--------------+-----------------------------------------|
| | %N6 | Dynamic CPU loading not to exceed 60% |
|---+--------------+-----------------------------------------|
| » | %N7 | Dynamic CPU loading not to exceed 70% |
|---+--------------+-----------------------------------------|
| | %N8 | Dynamic CPU loading not to exceed 80% |
|---+--------------+-----------------------------------------|
| | %N9 | Dynamic CPU loading not to exceed 90% |
+------------------------------------------------------------+
SPECIAL COMMANDS
+------------------------------------------------------------+
| INVALID TIES RESULT CODE |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] *Q n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Controls the result code sent when an |
| | | invalid TIES escape sequence is |
| | | detected after OK response has been |
| | | sent |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| » | *Q0 | CONNECT xxxx result code sent when an |
| | | invalid TIES escape sequence is |
| | | detected after OK response has been |
| | | sent |
|---+--------------+-----------------------------------------|
| | *Q1 | xxxx result code sent when an invalid |
| | | TIES escape sequence is detected after |
| | | OK response has been sent |
+------------------------------------------------------------+
S(STATUS) - REGISTERS
+------------------------------------------------------------+
| CONNECTION FAILURE CODES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S86? [cmds] |
|--------------+---------------------------------------------|
| Description: | Reports codes which correspond to the |
| | possible causes of a connection failure |
|--------------+---------------------------------------------|
| Value | Meaning |
|--------------+---------------------------------------------|
| 0 | Normal hang up |
|--------------+---------------------------------------------|
| 4 | Carrier signal lost |
|--------------+---------------------------------------------|
| 5 | No error-control detected for remote modem |
| | during feature negotiation |
|--------------+---------------------------------------------|
| 6 | Remote modem failed to respond to feature |
| | negotiation |
|--------------+---------------------------------------------|
| 9 | No common protocol found |
|--------------+---------------------------------------------|
| 12 | No failure - remote modem disconnected |
| | normally |
|--------------+---------------------------------------------|
| 13 | Remote modem failed to respond after 10 |
| | re-transmissions same message |
|--------------+---------------------------------------------|
| 14 | Violation of negotiated protocol caused |
| | failure |
|--------------+---------------------------------------------|
| 15 | Loss of data compression caused failure |
|--------------+---------------------------------------------|
| 20 | Long Space Disconnect (Y1) time limit |
| | reached |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DCE LINE SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S37= n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum allowable data exchange |
| | rate attempted during handshake process. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S37=0 | Attempt to connect at highest possible |
| | speed |
|--------------+---------------------------------------------|
| S37=3 | 300bps |
|--------------+---------------------------------------------|
| S37=4 | 1200bps |
|--------------+---------------------------------------------|
| S37=6 | 2400bps |
|--------------+---------------------------------------------|
| S37=7 | 4800bps |
|--------------+---------------------------------------------|
| S37=8 | 7200bps |
|--------------+---------------------------------------------|
| S37=9 | 9600bps |
|--------------+---------------------------------------------|
| S37=10 | 12.0Kbps |
|--------------+---------------------------------------------|
| S37=11 | 14.4Kbps |
|--------------+---------------------------------------------|
| S37=12 | V.34 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.34 BAUD RATE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S35= n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum allowable baud rate for |
| | V.34 negotiation. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S35=0 | 2400bps |
|--------------+---------------------------------------------|
| S35=1 | 2743bps |
|--------------+---------------------------------------------|
| S35=2 | 2800bps |
|--------------+---------------------------------------------|
| S35=3 | 3000bps |
|--------------+---------------------------------------------|
| S35=4 | 3200bps |
|--------------+---------------------------------------------|
| S35=5 | 3429bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.34 BIT RATE |
|------------------------------------------------------------|
| Type: | Register |
|---------------+--------------------------------------------|
| Format | AT [cmds] S34= n [cmds] |
|---------------+--------------------------------------------|
| Range | 0 - 8 |
| (2400bps): | |
|---------------+--------------------------------------------|
| Range | 1 - 10 |
| (3000bps): | |
|---------------+--------------------------------------------|
| Range | 1 - 11 |
| (3200bps): | |
|---------------+--------------------------------------------|
| Range | 1 - 13 |
| (3429bps): | |
|---------------+--------------------------------------------|
| Default: | 13 |
|---------------+--------------------------------------------|
| Bit Rate: | (S34 + 1) * 2400bps |
|---------------+--------------------------------------------|
| Description: | Sets maximum bit rate for V.34 negotiation |
+------------------------------------------------------------+