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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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USER CONFIGURABLE SETTINGS
Setting Label Position
CSU/DSU will operate in synchronous modeSW1/5 On
     CSU/DSU will operate in asynchronous mode SW1/5 Off
RTS signal forced highSW1/6 On
     RTS signal normal SW1/6 Off
DSR signal forced highSW1/7 On
     DSR signal normal SW1/7 Off
Local loopback test disabledSW1/8 On
     Local loopback test enabled SW1/8 Off
Digital loopback test disabledSW1/9 On
     Digital loopback test enabled SW1/9 Off
Remote loopback test disabledSW1/10 On
     Remote loopback test enabled SW1/10 Off
Test pattern disabledSW1/11 On
     Test pattern enabled SW1/11 Off
Elastic store disabledSW1/12 On
     Elastic store enabled SW1/12 Off
4-wire line is connectedSW2/1 On
     2-wire line is connected SW2/1 Off
Leased line is connectedSW2/2 On
     Switched line is connected SW2/2 Off
DTR signal forced highSW2/3 On
     DTR signal normal SW2/3 Off
Factory configured - do not alterSW2/4 N/A

LINE SPEED
Synchronous Mode Asynchronous Mode SW1/1 SW1/2
     9600bps 9600bps On On
     19.2Kbps 19.2Kbps Off On
56Kbps38.4Kbps On Off
     64Kbps 57.6Kbps Off Off

CLOCK SOURCE
Setting SW1/3 SW1/4
RemoteOn On
     Internal Off Off
     External Off On

DIAGNOSTIC LED(S)
LED Color Status Condition
SD Red On CSU/DSU is transmitting data
SD Red Off CSU/DSU is not transmitting data
RD Red On CSU/DSU is receiving data
RD Red Off CSU/DSU is not receiving data
CD Red On Carrier signal detected
CD Red Off Carrier signal not detected
CTS Red On CTS signal is high
CTS Red Off CTS signal is low
RTS Red On RTS signal is high
RTS Red Off RTS signal is low
OL Red On Network signal detected
OL Red Off Network signal not detected
TM Red On CSU/DSU is in test mode
TM Red Off CSU/DSU is not in test mode
TM Red Blinking Error detected in test pattern

Proprietary AT Command Set

AUTO-ANSWER
Type: Register
Format: AT [cmds] S0=n [cmds]
Description: Controls when the CSU/DSU will automatically answer an incoming call.
Command Function
     S0=0 Auto-answer disabled.
     S0=1 CSU/DSU will always answer incoming calls.
S0=2CSU/DSU will answer incoming calls when DTR signal is high.

DATA LENGTH
Type: Register
Format: AT [cmds] S12=n [cmds]
Description: Selects how many data bits will be transmitted.
Command Function
S12=08 data bits.
     S12=1 7 data bits.


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