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5634BIF User’s Manual
33
S-Register
Range
Default
Description
S16
General Bit Mapped Test Options Status
Bit 0
¡ Ð
Local analog loopback
0= Disabled (Default)
1= Enabled (&T1)
Bit 2
¡ Ð
Local digital loopback
0= Disable(Default)
1= Enable(&T3)
Bit 3
¡ Ð
Remote digital loopback (RDL) status
0= Modem not in RDL(Default)
1= RDL in progress
Bit 4
¡ Ð
RDL required(AT&T6)
0= RDL not requested(Default)
1= RDL requested
Bit 5
¡ Ð
RDL with self test
0= Disabled (Default)
1= Enabled(&T7)
Bit 6
¡ Ð
Local analog loopback (LAL)with self
test
0= Disabled (Default)
1= Enabled(&T8)
Bit 7
¡ Ð
Not used
S18
0-255
seconds
0
Test Timer
Register S18 sets the amount of time for modem
tests. The tests can run from 1 to 255 seconds,
depending on the value in S18. The factory
setting turns off the timer. If the command &T0
is used to end the modem tests, the value of
S18 can be set to 0 to turn off the test timer .
AutoSync Bit Mapped Options
Defines the options for AutoSync operation .
S19 must be set to the desired value before
&Q4 is issued.
S19
Bit
Mapped
0,
hex
Bit 1
BSC/HDLC format select
0 = BSC selected (default)
1 = HDLC selected
Bit 2
Address detection enable/disable
0 = Disabled (default)
1 = Enabled
Bit 3
NRZI/NZI coding select
0 = NRZI (default)
1 = NZI
Bit 4
Idle indictor select
0 = Mark idle (default)
1 = Flag or sync idle
Содержание 5634BIF
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