User's Manual

5634BIF User’s Manual
40
S-Register Range Default Description
3 General Bit Mapped Options Status
Indicates the status of command options
S41
Bit 0-1 Compression selection (%Cn)
0= Disabled (%C0)
1= MNP 5(%C1)
2= V.42 bis (%C2)
3= MNP 5 and V.42 bis (%C3) (Default)
Bit 2,6 Auto retrain and fallback/fall forward (%En)
Bit 6 Bit 2
0 0 = Retrain and fallback/fall forward disabled
(%E0) (Default)
0 1 = Retrain enabled (%E1)
1 0 = Fallback/fall forward enabled (%E2)
Bit 4 Block mode control (\Ln)
0= Stream mode (\L0) (Default)
1= Block mode (\L1)
Bit 7 Enable fallback to V.22bis/V.22 (-Qn)
0= Disabled (-Qn)
1= Enable (-Q1) (Default)
S46 138 Data Compression Control
Control selection of compression. The following
actions are executed for the given values:
S46=136 Execute error correction protocol with
no compression
S46=138 Execute error correction protocol with
compression (Default)
S48 7 V.42 Negotiation Action
The V.42 negotiation process determines the
capabilities of the remote modem. However,
when the capabilities of the remote modem are
known and negotiation is unnecessary, this
process can be bypassed if so desired.
S48=0 Disable negotiation; bypass the
detection and negotiation phases; and
proceed with LAPM.
S48=7 Enable negotiation.(Default)