beautypg.com

Wsw39, V.34 transmission speed, App. 4-43 – Brother Facsimile Equipment MFC7420 User Manual

Page 306

background image

App.

4-43

Confidential

WSW39

(V.34 transmission speed)

Selector

No.

Function

Setting and Specifications

1

|

4

First transmission speed choice for
fallback

No.

1 2 3 4

No.

5 6 7 8

0 0 0 0 : 2400

bps

0 0 0 1 : 4800

bps

0 0 1 0 : 7200

bps

0 0 1 1 : 9600

bps

0 1 0 0 : 12000

bps

0 1 0 1 : 14400

bps

0 1 1 0 : 16800

bps

0 1 1 1 : 19200

bps

5

|

8

Last transmission speed choice for
fallback

1 0 0 0 : 21600

bps

1 0 0 1 : 24000

bps

1 0 1 0 : 26400

bps

1 0 1 1 : 28800

bps

1 1 0 0 : 31200

bps

1 1 0 1 : 33600

bps

1 1 1 0 : 33600

bps

1 1 1 1 : 33600

bps

NOTE: WSW39 takes effect only when the V.34 mode is permitted (WSW19, selector 7) in models

supporting V.34 mode. For the transmission speed setting in other modes, refer to WSW19.

Selectors 1 through 8: First and last choices of transmission speed for fallback

These selectors are used to set the modem speed range. With the first transmission speed choice
specified by selectors 1 through 4, the machine attempts to establish the transmission link via the
modem. If the establishment fails, the machine automatically steps down to the next highest speed
and attempts to establish the transmission link again. The machine repeats this sequence while
stepping down the transmission speed to the last choice specified by selectors 5 through 8.
If the modem always falls back to a low transmission speed (e.g., 24,000 bps), set the first
transmission speed choice to the lower one (e.g., modify it from 31,200 bps to 26,400 bps) in order
to deactivate the high-speed modem function and reduce the training time for shorter transmission
time.
WSW39 will be limited by selectors 3 through 8 on WSW40.