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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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RESULT CODES
Type: Configuration
Format: AT [cmds] Qn [cmds]
Description: Enables modem to send result codes to the DTE.
Command Function
Q0Result codes enabled.
     Q1 Result codes disabled.
     Q2 Result codes enabled in originate mode only.

TONE DIALING TEST
Type: Register
Format: AT [cmds] S16=n [cmds]
Description: Begins a tone dialing test.
Command Function
S16=0Tone dialing test disabled.
     S16=2 Tone dialing test enabled.

V.21 ANSWER MODE FALLBACK TIMER
Type: Register
Format: AT [cmds] S29=n [cmds]
Default: 20
Range: Unidentified
Unit: .1 second
Description: The function of this register is unidentified.

V.32 HANDSHAKE TIME
Type: Register
Format: AT [cmds] S28=n [cmds]
Default: 8
Range: 0 - 255
Unit: .1 second
Description: Sets length of V.32 handshake. A value of 255 means that the modem will only accept connections with V.32 at 9600bps.

V.34 MAPPING
Type: Register
Format: AT [cmds] S34=n [cmds]
Default: 0
Range: 0 - 15
Description: Controls V.34 mapping, non-linear coding, transmit level deviation, pre-emphasis, and pre-coding.
Bit Value Function
0 08S-2D map enabled.
1 8S-2D map disabled.
1 016S-4D map enabled.
1 16S-4D map disabled.
2 032S-2D map enabled.
1 32S-2D map disabled.
3 064S-4D map enabled.
1 64S-4D map disabled.
4 0Non-linear coding enabled.
1 Non-linear coding disabled.
5 0Transmit level deviation enabled.
1 Transmit level deviation disabled.
6 0Pre-emphasis enabled.
1 Pre-emphasis disabled.
7 0Pre-coding enabled.
1 Pre-coding disabled.

V.34 OPTIONS
Type: Register
Format: AT [cmds] S33=n [cmds]
Default: 0
Range: 0 - 255
Description: Controls V.34 baud rate and shaping.
Bit Value Function
0 02400 baud rate enabled.
1 2400 baud rate disabled.
1 02743 baud rate enabled.
1 2743 baud rate disabled.
2 02800 baud rate enabled.
1 2800 baud rate disabled.
3 03000 baud rate enabled.
1 3000 baud rate disabled.
4 03200 baud rate enabled.
1 3200 baud rate disabled.
5 03429 baud rate enabled.
1 3429 baud rate disabled.
6 0 Not used.
7 0Shaping enabled.
1 Shaping disabled.

SPORTSTER 56K VOICE FAXMODEM (EXTERNAL)

Card Type Modem (asynchronous)
Chipset U.S. Robotics
I/O Options Voice, speakerphone, speaker out
Maximum Data Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103A/212A
ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34
U.S. Robotics x2
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis
Fax Class Class I & II
Data Bus Serial

CONNECTIONS
Function Label Function Label
AC power in CN1 Serial port CN5
Telephone line in CN2 Power switch SW1
Telephone line out CN3 Volume VR1
Speaker out CN4    


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