
S-Registers for the MT5656ZDX, MT5600ZDX, MT5600BA/BL-Series Modems
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Multi-Tech Systems, Inc. Commands Reference Guide (PN S000273D)
Register Unit Range Default Description
S86 Continued
10 Bad response to feature negotiation.
11 No sync information from remote modem.
12 Normal disconnect initiated by remote modem.
13 Remote modem does not respond after 10 retransmissions of the
same message.
14 Protocol violation.
15 DTR lost.
16 Received GSTN cleardown.
17 Inactivity timeout.
18 Speed not supported.
19 Long space disconnect.
20 Key abort disconnect.
21 Clears previous disconnect reason.
22 No connection established.
23 Disconnect after three retrains.
24 Call Waiting tone detected.
25 Extension pickup detected.
26 Remote hangup detected.
S95 decimal 0–155 0 Extended Result Codes Control: A bit set to a 1 in this register, in
conjunction with the W command, enables the corresponding result code.
The +MR, +ER, and +DR settings also control S95 bits 2, 3, and 5
respectively. The more recent settings of +MR, +ER, and +DR, or host
writng of S95 bits 2, 3, and 5, along with the W command setting,
determine the corresponding actual result code reporting (see +MR, +ER,
+DR, and W commands).
Default: 0
Bit 0 CONNECT result code indicates DCE speed instead of DTE speed.
Bit 1 Append /ARQ to CONNECT XXX result code in error-correction
mode (XXXX=rate).
Bit 2 Enable +MCR: XXXX result code (XXXX=modulation) and +MRR:
XXXX result code (XXXX=rate).
(Also see +MR).
Bit 3 Enable +ER XXXX result code (XXXX=protocol identifier).
Bit 5 Enable +DR XXXX result code (XXXX=compression type).
V.90 S-Registers
These S-Registers are used with the MT5600BA/BL–V.90 modems only.
S18 seconds 0–255 0 &T Test Time: Sets the number of seconds that the modem conducts an
&T test before it returns to the command mode. If the value is zero, the
test must be terminated from command mode by issuing an &T0 or H
command. When S18 is non-zero, the modem returns the OK message
upon test termination.
S32 decimal 0–255 17 XON character: Sets the ASCII code for the XON character.
S33 decimal 0–255 19 XON character: Sets the ASCII code for the XOFF character.
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