Westermo TD-34 - Manual (Page 52)

52 6610-2203
S48 – 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.
Range: 0, 7, or 128 If an invalid number is entered, it is accepted into the S-Register, but S48
will act as if 128 has been entered.
Default: 7
S48=0 Disable negotiation; bypass the detection and negotiation phases; and proceed with
LAPM.
S48=7 Enable negotiation. (Default)
S48=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
When the modem issues a NO CARRIER result code, a value is written to this S-Register to
help determine the reason for the failed connection. S86 records the first event that con-
tributes to a NO CARRIER message. Range: 0–24, the cause codes are:
S86= 0 Normal disconnect, no error occurred.
S86= 4 Loss of carrier.
S86= 5 V.42 negotiation failed to detect an error-correction modem at the other end.
S86= 9 The modems could not find a common protocol.
S86=12 Normal disconnect initiated by the remote modem.
S86=13 Remote modem does not respond after 10 re-transmissions of the
same message.
S86=14 Protocol violation.
S91 – PSTN Transmit Attenuation Level
S91 sets the transmit attenuation level for the PSTN mode.
Range: 0 to 15
Default: 12
S95 – Extended Result Codes
A bit set to a 1 in this register will enable the corresponding result code regardless of the W
setting.
Default: 0
Bit 0 CONNECT result code indicates DCE speed instead of DTE speed.
Bit 1 Append/ARQ to CONNECT XXXX result code in error-correction mode
(XXXX = rate).
Bit 2 Enable +MCR: XXXX result code (XXXX = rate).
Bit 3 Enable +ER: XXXX result code (XXXX = protocol identifier).
Bit 4 Reserved.
Bit 5 Enable +DR: result code (XXXX = compression type).
Bit 6 Reserved.
Bit 7 Reserved.