WSW40 ; NOTE: - Page 307

 App. 

4-44 

Confidential

WSW40 

(V.34 modem settings) 

Selector 

No. 

Function 

Setting and Specifications

1 
2 

Not used.

3 

| 

8 

Masking of symbol rate(s) 

 Not 

masking 

Masking 

No. 3 

0 

1 

3429 symbols/sec 

No. 4 

0 

1 

3200 symbols/sec 

No. 5 

0 

1 

3000 symbols/sec 

No. 6 

0 

1 

2800 symbols/sec 

No. 7 

- 

- 

Not used. 

No. 8 

0 

1 

2400 symbols/sec 

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.