Quantum 560UF/L User Manual
Page 38
APPENDIX C. S REGISTERS
ACTIVE Professional External Modem User’s Manual
34
S42 - S45
Reserved
S46 *
Data compression control (Range :136,138)
Default : 138
136
Executes error correction protocol with no comp ression
138
Executes error correction protocol with compression
S48 *
V.42 negotiation action (Range:0,7,128)
Default : 7
0
Disables negotiation; bypass the detection and negotiation
phrases; and proceeds with LAP-M
7
Negotiation enabled
128
Negotiation disabled; bypass the detection and negotiation
phrases; and proceed at once with the fallback action
specified in S36. Can be used to force MNP.
S82
Break handling option (Range :3,7,128)
Default : 128
3
Expedited; Modem sends a break immediately; data
integrity is maintained both ahead of and after the break
7
Destructive; Modem sends a break immediately; data being
processed by each modem at the time of the break is
destroyed
128
In sequence; Modem sends a break in sequence with any
transmitted data; data integrity maintained ahead of and
after break
S86
Connection failure cause code
0
Normal disconnect, no error occurred
4
Loss of carrier
5
V.42 negotiation failed to detect an error-correction modem
at the other end
6
No response to feature negotiation
7
This modem is asynchronous only; the other modem is
synchronous only
8
No framing technique negotiation
9
The modems could not find a common protocol
10
Bad response to feature negotiation
11
No sync information from remote modem
12
Normal disconnect initiated by the remote modem
13
Remote modem does not respond after 10 re-transmissions
of the same message
14
Protocol violation
S91
PSTN transmit attenuation level (Range:0-15)
Default : 10
Sets the transmit level from 0 to -15 dBm for the PSTN mode. The
value may be limited as it is a country dependent parameter.
S92
FAX transmit attenuation level (Range:0-15)
Default : 10