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Micro House PC Hardware Library Volume II: Network Interface Cards And Modems Micro House PC Hardware Library Volume II: Network Interface Cards And Modems
by Micro House International, Inc. and Scott Mueller
Que, Macmillan Computer Publishing
ISBN: 078971664x   Pub Date: 06/17/98
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ZOOM TELEPHONICS, INC.

COMSTAR 33600 SVD

Card Type Modem (asynchronous)
Chip Set Rockwell
I/O Options Voice, speakerphone, SVD, speaker out, microphone in
Maximum Data Rate 33.6Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Protocol Bell 103A/212A
ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34
Rockwell V.FC
Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29, V.33
Fax Class Class I
Error Correction/Compression MNP5, MNP10EC, V.42, V.42bis
Data Bus 16-bit ISA

CONNECTIONS
Function Label Function Label
Telephone line out CN1 Speakout CN3
Telephone line in CN2 Microphone in CN4

USER CONFIGURABLE SETTINGS
Setting Label Position
Speaker jack is monauralJ16 Open
     Speaker jack is stereo J16 Closed
Microphone is electretJ25 Closed
     Microphone is dynamic J25 Open

AUDIO OUTPUT LEVEL CONFIGURATION
Setting J6 J10
Lowest Open Closed
Low Open Open
Medium Closed Closed
High Closed Open

SUPPORTED STANDARD COMMANDS
Basic AT Commands
+++, ‘comma’, A/
A, B, E, H, L, M, N, O, P, Q, T, V, W, X, Y, Z
&C, &D, &F, &G, &K, &Q, &S, &T, &V, &W, &Y, &Z
Extended AT Commands
\A, \B, \G, \N, \V
%C, %E, %L, %Q
Special AT Commands
#CID, :E, -K, +MS, -Q
S-Registers
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S18, S24, S25, S26, S29, S30, S32, S33, S36
S38, S39, S46, S48, S82, S86, S95

UNIDENTIFIED COMMANDS
Command Default
\K Unidentified
S14 Unidentified
S16 Unidentified
S21 Unidentified
S22 Unidentified
S23 Unidentified
S27 Unidentified
S28 Unidentified
S31 Unidentified
S40 Unidentified
S41 Unidentified

Proprietary AT Command Set

DIAL
Type: Immediate
Format: AT [cmds] D<#>;[cmds]
Description: Dials the telephone number indicated according to any modifiers included in the string.
Command Function
DL Re-dial last number.
DP Pulse dialing enabled.
DS=n Dial stored telephone number n.
DT Tone dialing enabled.
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 Quiet 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^ Calling tone enabled for this call.
D& Wait for prompt tone detection function enabled. Waits for prompt tone for amount of time specified by the S7 command.
D; Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

DISPLAY CHIPSET MANUFACTURER
Type: Immediate
Format: AT [cmds] #MFR? [cmds]
Description: Displays the voice chipset manufacturer’s name.

DISPLAY CHIPSET MODEL NAME
Type: Immediate
Format: AT [cmds] #MDL? [cmds]
Description: Displays the model name of the modem’s voice chipset.

DISPLAY CHIPSET REVISION
Type: Immediate
Format: AT [cmds] #REV? [cmds]
Description: Displays the revision level of the modem’s voice chipset.

DISPLAY INFORMATION
Type: Immediate
Format: AT [cmds] In [cmds]
Description: Displays information requested about the modem.
Command Function
I0 Displays product identification code.
I1 Displays ROM checksum.
I2 Tests and displays ROM checksum result.
I3 Displays firmware revision.
I4 Displays modem identifier.
I5 Displays country code.
I6 Displays data pump modem and revision.


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