Brother FAX2800 Service Manual page 166

Selector
No.
1
First transmission speed choice for
|
fallback
3
4
Last transmission speed choice for
|
fallback
6
7 V. 34 mode
8 V. 17 mode
NOTE: For the transmission speed setting in V.34 mode, refer to WSW39.
Selectors 1 through 6:
These selectors are used to set the modem speed range. With the first transmission speed choice
specified by selectors 1 through 3, the equipment attempts to establish the transmission link via the
modem. If the establishment fails, the equipment automatically steps down to the next highest
speed and attempts to establish the transmission link again. The equipment repeats this sequence
while stepping down the transmission speed to the last choice specified by selectors 4 through 6.
If the modem always falls back to a low transmission speed (e.g., 4,800 bps), set the first
transmission speed choice to the lower one (e.g., modify it from 12,000 bps to 7,200 bps) in order
to deactivate the high-speed modem function and reduce the training time for shorter transmission
time.
Generally, to save the transmission time, set the last transmission speed choice to a higher one.
Selector 7: V. 34 mode
This selector determines whether or not the equipment communicates with the remote station in
the V. 34 mode when that station supports the V. 34 mode.
WSW19
(Transmission speed setting in V. 17 mode)
Function
First and last choices of transmission speed for fallback
23
Setting and Specifications
No. 1 2 3
No. 4 5 6
0 0 0 :
0 0 1 :
0 1 0 :
0 1 1 :
1 0 0 :
1 0 1 :
1 1 0 :
1 1 1 :
0: Permitted
0: Permitted
2,400 bps
4,800 bps
7,200 bps
9,600 bps
12,000 bps
14,400 bps
1: Prohibited
1: Prohibited