Westermo ID-90 - Manual (Page 44)

44 6607-2204
S48 – V.42 Negotiation Control
Only valid with analogue modem option
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
0Disable negotiation; bypass the detection and negotiation phases; and
proceed with LAPM.
7 Enable negotiation. (default)
128 Disable negotiation; bypass the detection and negotiation phases; and
proceed at once with the fallback action specified in S36. Can be used
to force MNP.
S86 – Call Failure Reason Code
Only valid with analogue modem option
When the internal analogue modem issues a NO CARRIER result code, a value is written
to S86 Register to help determine the reason for the failed connection. S86 records the
first event that contributes to a NO CARRIER message. The S86 register is only updated
when the NO CARRIER is sent as result from a broken connection to an analogue sub-
scriber. The code definitions are:
S86
0Normal hangup, no error occurred.
1
Reserved.
2 Reserved.
3 Call Waiting caused disconnect.
4 Physical carrier loss.
5 No error correction at the other end.
6 No response to feature negotiation.
7 This modem is async only; the other modem is sync only.
8 No framing technique in common.
9 No protocol in common.
10Bad response to feature negotiation.
11
No sync information from the remote modem.
12 Normal hangup initiated by the remote modem.
13 Retransmission limit reached.
14 Protocol violation occurred.
15 Lost DTR.
16 Received GSTN cleardown.
17 Inactivity timeout.
18 Speed not supported.
19 Long space disconnect.
20Key abort disconnect.
21
Clears previous disconnect reason.
22 No connection established.
23 Disconnect after three retrains.
24 Call Waiting tone detected.
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