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App. 4-13 Confidential
WSW09
(Protocol definition 1)
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 time
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.
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.