Wsw38 (V.34 Transmission Settings) - Ricoh G157 Service Manual

MAINTENANCE MODE

WSW38 (V.34 transmission settings)

Selector
No.
1, 2 Setting of the equalizer
Sending level of guard tone at
3
phase 2
Stepping down the transmission
4
speed at fallback each
Automatic control of modem's
5, 6 EQM gain for proper transmission
speed choice
Redialing when a
7
communications error occurs
8 Not used.
NOTE: WSW38 takes effect only when the V.34 mode is permitted (WSW19,
selector 7) in models supporting V.34 mode.
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.
G157
CÓPIA NÃO CONTROLADA
Function
5-80
CÓPIA NÃO CONTROLADA
Setting and Specifications
No. 1. 2.
0 x: Automatic
1 0: Fixed to 4 points
1 1: Fixed to 16 points
0: Normal -7 db 1: Normal
0: 2400 bps 1: 4800 bps
No. 5. 6.
0 0: For higher transmission speed
than the current setting
0 1: No change from the current
setting
1 0: For lower transmission speed
than the current setting
1 1: For further lower transmission
than the setting made by 1, 0
0: ON 1: OFF
0: ON 1: OFF
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SM