ZyXEL U-1496S Plus User Guide - Page 30

Cts Tracks Rts At&r0

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+ TRACKS CARRIER AT&C1 DCD ON when carrier is detected. (see also S38b3). If S42.7=1, DCD only pulses off for 0.5 sec when carrier loss happens. ALWAYS ON AT&C0 Modem forces DCD always ON. RTS OPTIONS + IGNORED AT&R1 Modem assumes RTS always ON, ignores the changes. CTS TRACKS RTS AT&R0 Delay before CTS responds to RTS's change. The delay is set in S26. Note: Effective only on synchronous mode. This setting is ignored in asynchronous mode. RTS is always used as hardware flow control in this case. DSR OPTIONS + ALWAYS ON AT&S0 Modem forces DSR always ON. DATA SET READY AT&S1 According to CCITT. DSR ON during handshake. If S41.5=1, DSR follows DCD, pulses off for 0.5 sec for DCD on-off transition. If S44.4=1, DSR follows DTR. COMMAND ECHO + ENABLED ATE1 Modem echoes commands. DISABLED ATEO Modem does not echo commands. RESULT CODE + ENABLED ATQ0 Modem returns result code. DISABLED ATQ1 Modem does not return result code. ATQ2 If S40.1=1, modem does not return result code in answer mode. DTE ASYNC SPEED 76800 57600 this selection. 38400 19200 16800 14400 12000 9600 7200 4800 3600 2400 1800 Select DTE port asynchronous serial speed. AT command auto speed detection will override

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+
TRACKS CARRIER AT&C1
DCD ON when carrier is detected.
(see also S38b3).
If S42.7=1, DCD only pulses off for 0.5 sec
when carrier loss happens.
ALWAYS ON AT&C0
Modem forces DCD always ON.
RTS OPTIONS
+
IGNORED
AT&R1
Modem assumes RTS always ON, ignores the
changes.
CTS TRACKS RTS AT&R0
Delay before CTS responds to RTS's
change. The delay is set in S26.
Note: Effective only on synchronous mode. This setting is ignored
in asynchronous mode. RTS is always used as hardware flow control
in this case.
DSR OPTIONS
+
ALWAYS ON AT&S0
Modem forces DSR always ON.
DATA SET READY AT&S1
According to CCITT. DSR ON during
handshake. If S41.5=1, DSR follows DCD, pulses off for 0.5 sec
for DCD on-off transition.
If S44.4=1, DSR follows DTR.
COMMAND ECHO
+
ENABLED
ATE1 Modem echoes commands.
DISABLED
ATEO Modem does not echo commands.
RESULT CODE
+
ENABLED
ATQ0 Modem returns result code.
DISABLED
ATQ1 Modem does not return result code.
ATQ2 If S40.1=1, modem does not return result code in
answer mode.
DTE ASYNC SPEED
76800
Select DTE port asynchronous serial speed.
57600
AT command auto speed detection will override
this selection.
38400
19200
16800
14400
12000
9600
7200
4800
3600
2400
1800