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# NETCOMM LIMITED
ROADSTER II 56 ULTRA SVD (AM5690)
Card Type Modem (asynchronous)
Chip Set Unidentified
Maximum Modem Rate 56.0Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103/212A, ITU-T V.21, V.22,
Protocol V.22bis, V.23, V>32, V.32bis, V.34,
K56flex, V.90
Fax Modulation ITU-T V.17, V.27ter, V.29
Protocol
Error MNP5, MNP10, V.42, V.42bis
Correction/Compression
Fax Class Class I
Data Bus External
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| DC power | CN1 | Line in | CN3 |
|-----------------------------+------------+----------+------|
| RS-232/422 | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------------+----------+--------------------------|
| TX/RX | Green | On | Modem is |
| | | | transmitting/receiving |
| | | | data |
|-------+--------------+----------+--------------------------|
| TX/RX | Green | Off | Modem is not |
| | | | transmitting/receiving |
| | | | data |
|-------+--------------+----------+--------------------------|
| TX/RX | Green | Blinking | Modem is transmitting |
| | | | data to the local |
| | | | computer |
|-------+--------------+----------+--------------------------|
| CD | Unidentified | On | Carrier signal detected |
|-------+--------------+----------+--------------------------|
| CD | Unidentified | Off | Carrier signal not |
| | | | detected |
|-------+--------------+----------+--------------------------|
| OH | Unidentified | On | Modem is off-hook |
|-------+--------------+----------+--------------------------|
| OH | Unidentified | Off | Modem is on-hook |
|-------+--------------+----------+--------------------------|
| TR | Unidentified | On | DTR signal is high |
|-------+--------------+----------+--------------------------|
| TR | Unidentified | Off | DTR signal is low |
|-------+--------------+----------+--------------------------|
| POWER | Unidentified | On | Power is on |
|-------+--------------+----------+--------------------------|
| POWER | Unidentified | Off | Power is off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, B, E, H, M, O, Q, V, W, Y, Z |
|------------------------------------------------------------|
| &C, &D, &R, &S, &W, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \G, \K, \L, \N, \V |
|------------------------------------------------------------|
| %C, %L, %Q |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S18, S24, S25, S29, S30, S32, S33, |
|------------------------------------------------------------|
| S38, S48, S82, S86, S95 |
|------------------------------------------------------------|
| Special Commands |
|------------------------------------------------------------|
| *H, -K, -Q, )M, @M, :E, +MS |
|------------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| 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^ | Disable calling tones |
|--------------+---------------------------------------------|
| DJ | Perform an MNP10 connection |
|--------------+---------------------------------------------|
| DK | Enable power level adjustment during MNP10 |
| | connection |
|--------------+---------------------------------------------|
| D; | Modem returned to idle state after dialing. |
| | The semicolon can only be placed at the end |
| | of the dial command. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports modem model and speed |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I3 | Reports ROM revision number |
|--------------+---------------------------------------------|
| I4 | Displays Hayes compatible coded strings |
| | containing product and feature specific |
| | information |
|--------------+---------------------------------------------|
| I9 | Displays the product ID and revision number |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| L0 | Low volume setting |
|--------------+---------------------------------------------|
| L1 | Low volume setting |
|--------------+---------------------------------------------|
| í L2 | Medium volume setting |
|--------------+---------------------------------------------|
| L3 | Highest volume setting |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-MODE DETECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Nn [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 |
|--------------+---------------------------------------------|
| í N1 | Auto-mode detection enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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, 8, 33, 35, +F4 enabled. |
|--------------+---------------------------------------------|
| X1 | Busy and dial tone detection disabled; |
| | result codes 0 - 5, 8-23, 33, 35, +F4 |
| | enabled. |
|--------------+---------------------------------------------|
| X2 | Busy tone detection disabled, dial tone |
| | detection enabled; result codes 0 - 6, |
| | 8-23, 33, 35, +F4 enabled. |
|--------------+---------------------------------------------|
| X3 | Busy tone detection enabled, dial tone |
| | detection disabled; result codes 0 - 23, |
| | 33, 35, +F4 enabled. |
|--------------+---------------------------------------------|
| í X4 | Busy and dial tone detection enabled; all |
| | result codes enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY DEFAULT PROFILE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &F [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets values in active profile to values |
| | found in the default profile |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &F0 | Restore factory default profile 0 |
|--------------+---------------------------------------------|
| &F2 | Restore factory default profile 1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GUARD TONE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Gn [cmds] |
|--------------+---------------------------------------------|
| Description: | Commands the modem to transmit a guard tone |
| | in V.22/V.22bis |
|------------------------------------------------------------|
| Note: Used primarily for international data |
| transmission |
|------------------------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &G0 | Guard tone disabled |
|--------------+---------------------------------------------|
| &G2 | 1800Hz guard tone enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables flow control options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Flow control disabled |
|--------------+---------------------------------------------|
| í &K3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| &K4 | XON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode options |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| í &Q0 | Asynchronous mode, serial port speed |
| | follows connect speed. |
|--------------+---------------------------------------------|
| &Q5 | Error correction mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONFIGURATION PROFILES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &V [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays active and stored configuration |
| | profiles |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| í &V0 | View active and stored command profiles |
|--------------+---------------------------------------------|
| &V1 | Display last connection statistics |
+------------------------------------------------------------+
Extended AT Command Set
+------------------------------------------------------------+
| AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain mode and |
| | fallback/fall-forward |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %E0 | Auto-retrain disabled |
|--------------+---------------------------------------------|
| %E1 | Auto-retrain enabled |
|--------------+---------------------------------------------|
| %E2 | Auto-fallback/fall-forward enabled |
|--------------+---------------------------------------------|
| %E3 | Auto-retrain enabled, hang-up when line |
| | quality reaches hang-up threshold |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42bis - COMPRESSION CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls V.42bis data compression |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #C0 | Calling tones disabled |
|--------------+---------------------------------------------|
| #C1 | Calling tone controlled by dial modifier n |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 ENHANCED CELLULAR |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -SECn [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 10-30 |
|--------------+---------------------------------------------|
| Unit: | -1 dBm |
|--------------+---------------------------------------------|
| Description: | Sets the enhanced cellular function |
+------------------------------------------------------------+