Brother 1920CN - Color Inkjet - Fax Service Manual page 134

Selector
No.
1 Frame length selection
2 Use of non-standard commands
3
No. of retries
4
5 T5 timer
6 T1 timer
7 Elapsed time for time-out
control for no response from the
called station in automatic
8
sending mode
NOTE: Selectors 1 through 6 are not applicable in those models which do not support ECM.
Selector 1: Frame length selection
l
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
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If this selector is set to "0," the machine may 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
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These selectors set the number of retries in each specified modem transmission speed.
Selector 5: T5 timer
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This selector sets the time length for the T5 timer.
Selector 6: T1 timer
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This selector sets the time length for the T1 timer.
Selectors 7 and 8: Elapsed time for time-out control
l
If the machine receives no response (no G3 command) from the called terminal in automatic
sending during the time set by these selectors, it disconnects the line.
WSW09
(Protocol definition 1)
Function
V - 22
Setting and Specifications
0: 256 octets
0: Allowed
No. 3 4
0 0 : 4 times
0 1 : 3 times
1 0 : 2 times
1 1 : 1 time
0: 300 sec.
0: 35 sec.
No. 7 8
0 0 : 60 sec.
(55 sec. for US and Canada)
0 1 : 140 sec.
1 0 : 90 sec.
1 1 : 35 sec.
1: 64 octets
1: Prohibited
1: 60 sec.
1: 40 sec.