Ricoh A250 Service Manual page 441

LINE TYPE CHANGE
2.5 LINE TYPE CHANGE
When the machine is initially used only with the PSTN, the line type programmed
with phone numbers in Quick Dials and the Speed Dials is stored as PSTN G3.
Later, if the line connection is changed so that G3 is to be used only with the ISDN,
the communication port for all stored Quick and Speed Dials must be changed to
ISDN G3.
This feature allows the communication mode and port to be changed for all stored
numbers at once.
Procedure:
1) Change the data in the following RAM addresses.
68E8E4(H) - Current line type setting.
68E8E5(H) - Line type to be used after this procedure.
The default setting for the above addresses are FF(H).
2) Turn the main switch off and on.
Then, the machine checks all phone numbers stored in Quick Dials, Speed
Dials, AI Redial, and Forwarding Stations. If the communication mode and
the port setting for a number is the same as specified for the "current setting"
in the above address, the machine changes these to the new setting.
3) After this procedure, the data programmed automatically returns to FF(H).
Setting:
Bit 0 and 1: Communication mode
Bit 1 0 Setting
0 0 G3
0 1 G4
1 0 Not used
Bit 2 to 4: Communication port
Bit 4 3 2 Setting
0 0 0 PSTN
0 0 1 Not used
0 1 1 ISDN
1 0 0 Any available port
(This setting can be used only when an optional G3 or G4 unit is
installed in the machine.)
Other settings - Not used
Bit 5 to 7: Not used
Example:
If you wish to change the port setting from PSTN G3 to ISDN G3,
change the data to 00(H) (0000 0000) in the address 68E8E4(H)
change the data to 0C(H) (00001100) in the address 68E8E5(H)
Do not use this procedure if there are any files stored in the memory awaiting
transmission.
A250 2-20 SM