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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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WISECOM, INC.

DATA/FAX MODEM 28.8 V.34

Card Type Fax, Modem (asynchronous)
Chip Set Unidentified
Maximum Data Rate 28.8Kbps
Maximum Fax Rate 14.4Kbps
Data Bus 8-bit ISA
Fax Class Class I & II
Data Modulation Protocol Bell 103A/212A
ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34
Rockwell V.FC
Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis

CONNECTIONS
Function Label Function Label
Line in CN1 Line out CN2

SERIAL PORT ADDRESS
Setting JP8/1 JP8/2
     COM1 (3F8h) Pins 1 & 2 closed Pins 1 & 2 closed
     COM2 (2F8h) Pins 2 & 3 closed Pins 1 & 2 closed
     COM3 (3E8h) Pins 1 & 2 closed Pins 2 & 3 closed
COM4 (2E8h)Pins 2 & 3 closed Pins 2 & 3 closed

INTERRUPT
Setting JP8/3 JP8/4 JP8/5 JP8/6
     2 Closed Open Open Open
3Open Closed Open Open
     4 Open Open Closed Open
     5 Open Open Open Closed

Proprietary AT Command Set

AUTO-RETRAIN - FALLBACK/FALLFORWARD
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
%E2Fallback/fall forward enabled

BIT MAPPED REGISTERS
Register Default
S14 Unidentified
S16 0
S21 Unidentified
S22 Unidentified
S23 Unidentified
S27 Unidentified
S31 Unidentified
S39 3
S40 105
S41 3

BREAK SEND
Type: Configuration
Format: AT [cmds] \Bn [cmds]
Default: 3
Range: 0-9
Unit: .1 second
Description: Sends break to modem

BREAK TYPE
Type Configuration
Format AT [cmds] \Kn [cmds]
Default 5
Range 0-5
Description Configures action of break signal

COMPRESSION
Type: Configuration
Format: AT [cmds] %Cn [cmds]
Description: Selects data compression
Command Function
     %C0 Data compression disabled
     %C1 MNP5 enabled
     %C2 V.42bis enabled
%C3MNP5 and V.42bis enabled

CONNECT MODE
Type: Configuration
Format: AT [cmds] \Nn [cmds]
Description: Sets connect mode
Command Function
     \N0 Normal mode enabled
     \N1 Direct mode only enabled
     \N2 V.42 and MNP mode enabled
\N3V.42, MNP, or Normal mode enabled
     \N4 V.42 mode only enabled
     \N5 MNP mode only enabled

DISPLAYS LINE SIGNAL LEVEL
Type: Immediate
Format: AT [cmds] %L [cmds]
Description: Displays received line signal level

DISPLAYS LINE SIGNAL QUALITY
Type: Immediate
Format: AT [cmds] %Q [cmds]
Description: Displays line signal quality

FAX TRANSMIT LEVEL
Type: Register
Format: AT [cmds] S92=n [cmds]
Default: 10
Range: 0-15
Unit: -1dBm
Description: Controls fax transmission level


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