Multitech MultiAccess MA220 User Manual page 74

Appendix F – Modem AT Commands
S48 decimal 7 or 128
S89 seconds 0, 5–255
S108 decimal 0–3, 6, 7
74
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
10 Sets the length of time in the off-line command mode before
the modem goes into standby mode or "sleep mode". A value
of zero prevents standby mode; a value of 1–4 sets the value
to 5. Standby mode (sleep mode or low power mode) is
controlled by S89. It programs the number of seconds of
inactivity before the modem will go to sleep. The default value
is 0. A value of 0 disables standby mode. The modem will
wake on an incoming ring or an AT command.
6 Selects the 56K digital loss if using the modem through a PBX
line. The default value is -6 dB loss, the value used when
calling from a typical POTS line long distance.
0 = -0 dB digital loss, no robbed-bit signaling
1 = -3 dB PBX digital loss
2 = -2 dB digital loss
3 = -3 dB digital loss
6 = -6 dB digital loss
7 = -0 dB digital loss with robbed-bit signaling
S48=7
LAPM or hang up
LAPM or async
LAPM, MNP, or hang up
LAPM, MNP, or async
Multi-Tech Systems, Inc. MultiAccess User Guide
S48=128
Do not use
Async
MNP or hang up
MNP or async