Ricoh A250 Service Manual page 481

System Switch 0A
No FUNCTION
0-2 Not used
3 Continuous polling reception
0: Disabled 1: Enabled
4 Dialing on the ten-key pad
when the external telephone
is off-hook
0: Disabled 1: Enabled
5 On hook dial
0: Disabled 1: Enabled
6 Line used for G3 transmission
0: PSTN 1: ISDN
ISDN: Europe model only
7 Line used when the machine
falls back to G3 from G4 if the
other end is not a G4 machine
0: PSTN 1: ISDN
ISDN: Europe model only
System Switch 0B - Not used (Do not change the factory settings.)
System Switch 0C - Not used (Do not change the factory settings.)
System Switch 0D - Not used (Do not change the factory settings.)
System Switch 0E
No FUNCTION
0-2 Not used
3
Action when the external
handset goes off-hook
0: Manual tx and rx operation
1: Memory tx and rx operation
(the display remains the
same)
4-7 Not used
SM
COMMENTS
Do not change the settings.
This feature allows a series of stations to be
polled in a continuous cycle. This will continue
until the polling reception file is erased.
The dialing interval is the same as memory
transmission.
0: Prevents dialing from the ten-key pad while the
external telephone is off-hook. Use this setting
when the external telephone is not by the
machine, or if a wireless telephone is connected
as an external telephone.
1: The user can dial on the machine's ten-key pad
when the handset is off-hook.
0: On hook dial is disabled.
If an ISDN unit has been installed, this bit
determines whether G3 transmissions go out over
the PSTN or the ISDN.
This bit switch has no effect if Communication
Switch 07 bit 0 is set to 0.
COMMENTS
Do not change the settings.
0: Manual tx and rx are possible while the
external handset is off-hook. But, memory tx is
not possible.
1: The display stays in standby mode even when
the external handset is used, so that other people
can use the machine for memory tx operation.
Note that manual tx and rx are not possible with
this setting.
Do not change the settings.
4-19
BIT SWITCHES
A250