<WSW38>

Selector No.

Function

 

Setting and Specifications

 

 

 

 

 

 

 

No. 1

2

 

1

 

0

0: Automatic

 

Setting of the equalizer

0

1: Automatic

 

2

 

 

1

0: Fixed to 4 points

 

 

 

 

1

1: Fixed to 16 points

 

 

 

 

 

3

Sending level of guard tone at

0: Normal - 7 db 1: Normal

phase 2

 

 

 

 

 

 

 

 

 

4

Stepping down the transmission

0: 2,400 bps

1: 4,800 bps

speed at fallback each

 

 

 

 

 

 

 

 

 

 

 

No. 5

6

 

 

 

0

0: For higher transmission speed

 

 

 

than the current setting

5

Automatic control of modem's

0

1: No change from the current

EQM gain for proper

 

setting

 

6

 

 

transmission speed choice

1

0: For lower transmission speed

 

 

 

 

than the current setting

 

 

1

1: For further lower transmission

 

 

 

than the setting made by 1, 0

 

 

 

 

 

7

Redialing when a communications

0: ON

1: OFF

error occurs

 

 

 

 

 

 

 

 

8

Detection of CED for stopping CNG

0: ON

1: OFF

 

 

 

 

 

Selectors 1 and 2: Setting of the equalizer

These selectors set the equalizer's training level to be applied if the machine fails to send training due to weak line connection. If these selectors are set to "0, X," the modem will automatically set the appropriate training level.

Selector 3: Sending level of guard tone at phase 2

This selector sets the sending level of guard tone for 1800 Hz to be sent at Phase 2 in the V. 34 mode.

Selector 4: Stepping down the transmission speed at fallback each

This selector determines how much the modem steps down the transmission speed at fallback when called by the remote station. If this selector is set to "1," the modem may step down the transmission speed from 33600 bps to 28800 bps by one-time fallback.

Selectors 5 and 6:Automatic control of modem's EQM gain for proper transmission speed choice

These selectors determine how the modem controls the EQM (Eye Quality Monitor) gain for proper choice of the transmission speed, which applies if the modem selects higher transmission speed than the possible speed so that it always repeats falling back.

Selector 8: Detection of CED for stopping CNG

If this selector is set to "0," the detection time of CED specified by WSW43, selectors 4 and 5 will apply.

App. 1-45

Confidential