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Allied Data Technologies
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0= Off
1= On (AT&T1)
Bit 1
0-1
0
Not used
Bit 2
0-1
0
Local digital loopback
0= Off
1= On (AT&T3)
Bit 3
0-1
0
Status remote digital loopback (RDL)
0= Modem not in RDL
1= RDL in operation
Bit 4
0-1
0
Status RDL request
0= no RDL request
1= RDL request (AT&T6)
Bit 5
0-1
0
RDL with self-test
0= Off
1= On (AT&T7)
Bit 6
0-1
0
Local analog loopback (LAL) with self-test
0= Off
1= On (AT&T8)
Bit 7
0-1
0
Reserved
S17
Reserved
S18 * 000
0-255 Test Timer
S18 is used to determine how long a test is performed. With a value of 0, the test
will be performed continuously. The test can be interrupted by the AT&T0 or ATH
commands.
S19
Reserved
S20
Reserved
S21 * 055
Bitmap register
Bit
Value
Default
Description