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App. 1-15
Confidential
<WSW09>
• Selector 1: Frame length selection
Usually a single frame consists of 256 octets (1 octet = 8 bits). For communications lines
with higher bit error rate, however, set selector 1 to "1" so that the machine can divide a
message into 64-octet frames.
Remarks: The error correction mode (ECM) is a facsimile transmission manner in which
the machine divides a message into frames for transmission so that if any data
error occurs on the transmission line, the machine retransmits only those
frames containing the error data.
• Selector 2: Use of non-standard commands
If this selector is set to "0," the machine can use non-standard commands (the machine's
native-mode commands, e.g., NSF, NSC, and NSS) for communications. If it is set to "1,"
the machine will use standard commands only.
• Selectors 3 and 4: No. of retries
These selectors set the number of retries in each specified modem transmission speed.
• Selector 5: T5 timer
This selector sets the time length for the T5 timer.
• Selector 6: T1 timer
This selector sets the time length for the T1 timer.
• Selectors 7 and 8:
Timeout for response from the called station in automatic sending mode
If the machine (calling station) receives no response (no G3 command) from the called
terminal in automatic sending mode for the period specified by these selectors, it
disconnects the line.
Selector No. Function Setting and Specifications
1 Frame length selection 0: 256 octets 1: 64 octets
2
Use of non-standard commands
0: Allowed 1: Prohibited
3
4
No. of retries
No. 3 4
0 0: 4 times
0 1: 3 times
1 0: 2 times
1 1: 1 times
5 T5 timer 0: 300 sec. 1: 60 sec.
6 T1 timer 0: 35 sec. 1: 40 sec.
7
8
Timeout for response from the
called station in automatic
sending mode
No. 7 8
0 0: 55 sec. (
in U.S.A. and Canadian
models
)
60 sec. (in other models)
0 1: 140 sec.
1 0: 90 sec.
1 1: 35 sec.
Note:
• Selectors 1 through 5 are not applicable in those models which do not support ECM.