Wsw40 (V.34 Modem Settings) - Ricoh G157 Service Manual

MAINTENANCE MODE

WSW40 (V.34 modem settings)

Selector
No.
1–2 Not used.
3–8 Masking of symbol rate(s)
NOTE: WSW40 takes effect only when the V.34 mode is permitted (WSW19,
selector 7) in models supporting V.34 mode.
Selectors 3 through 8: Masking of symbol rate(s)
These selectors allow you to limit the transmission speed range in V.34 mode by
masking the desired symbol rate(s). Transmission speeds assigned to the symbol
rates are listed on the next page. The setting made by these selectors will limit the
setting made by selectors 1 through 4 on WSW39.
If selector 3 is set to "1" to mask the 3429 symbols/second when the first
transmission speed choice is 33600 bps (specified by selectors 1 through 4 of
WSW39), for example, then the allowable maximum transmission speed will be
limited to 31200 bps. If selector 8 is set to "1" to mask the 2400 symbols/second
when the first transmission speed choice is 33600 bps, then the allowable
maximum transmission speed remains 33600 bps.
If selector 8 is set to "1" to mask the 2400 symbols/second when the first
transmission speed choice is 21600 bps (specified by selectors 1 through 4 on
WSW39), then the allowable maximum transmission speed remains 21600 bps but
the minimum transmission speed will be limited to 4800 bps.
Symbol Speed
rate (bps)
2400 2400
4800
7200
9600
12000
14400
16800
19200
21600
G157
Function
Symbol Speed Symbol
rate (bps)
2800 4800
7200
9600
12000
14400
16800
19200
21600
24000
26400
Setting and Specifications
Not masking
No.3 0
No.4 0
No.5 0
No.6 0
No.7 0
No.8 0
Speed Symbol
rate (bps) rate
3000 4800 3200
7200
9600
12000
14400
16800
19200
21600
24000
26400
28800
5-82
Masking
1 3429 symbols/sec
1 3200 symbols/sec
1 3000 symbols/sec
1 2800 symbols/sec
1 Not used.
1 2400 symbols/sec
Speed Symbol
(bps) rate
4800 3429
7200
9600
12000
14400
16800
19200
21600
24000
26400
28800
31200
Speed
(bps)
4800
7200
9600
12000
14400
16800
19200
21600
24000
26400
28800
31200
33600
SM