Multitech 5634 Series Reference Manual page 29

Register Unit Range
S48 decimal 7 or 128
S89 seconds 0, 5–255
S108 decimal 0–3, 6, 7
S109 decimal 0–2
Multi-Tech Systems, Inc. AT Commands Reference Guide (PN S000272E)
Default Description
7 Enables (7) or disables (128) LAPM negotiation. The following
table lists the S36 and S48 configuration settings for certain
types of connections.
S36=0, 2
S36=1, 3
S36=4, 6
S36=5, 7
0 Sets the length of time in the off-line command mode before
the modem goes into standby mode. A value of zero prevents
standby mode; a value of 1–4 sets the value to 5.
6 Selects the 56K digital loss if using the modem thru a PBX line.
The default value is -6 dB loss, the value used when calling
from a typical POTS line long distance.
Value
0
1
2
3
6
7
1 Selects the 56K operating mode.
Value
0
1
2
S48=7
LAPM or Hangup
LAPM or Async
LAPM, MNP, or Hangup
LAPM, MNP, or Async
Digital loss
-0 dB digital loss, no robbed-bit signaling
-3 dB PBX digital loss
-2 dB digital loss
-3 dB digital loss
-6 dB digital loss
-0 dB digital loss with robbed-bit signaling
56K mode
56K mode (V.90 disabled)
Dual mode (56K or V.90)
V.90 mode (56K disabled)
Chapter 2 – S-Registers
S48=128
Do not use
Async
MNP or Hangup
MNP or Async
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