Ricoh B022, Service Manual, Page: 674 / 878

BIT SWITCHES
B418 3-52 SM
3.2.7 G4 INTERNAL SWITCHES
G4 Internal Switch 00
No.
FUNCTION COMMENTS
0-7
Country code
Bit 4
3 2 1 0 Country
0 0 0 0 1 Germany (1TR6 mode)
0 0 0 1 0 Universal (Europe Euro ISDN)
1 0 0 0 1 USA
Note: In Germany, use the Universal setting for the Euro ISDN lines.
G4 Internal Switch 01 - Not used (do not change the settings)
G4 Internal Switch 02 - Not used (do not change the settings)
G4 Internal Switch 03
No. FUNCTION COMMENTS
0
Amount of protocol dump data in
one protocol dump list
0: Last communication only
1: Up to the limit of the memory
area for protocol dumping
Change this bit to 0 if you want to have a
protocol dump list of the last communication
only.
This bit is only effective for the dump list D +
Bch1.
1-7 Not used Do not change the settings.
G4 Internal Switch 04
No. FUNCTION COMMENTS
0-2 Not used Do not change these settings.
3
Auto data rate change for
transmission
(64 kbps to 56 kbps)
0: On 1: Off 0: The machine automatically changes the
transmission data rate from 64 kbps to 56
kbps after 3 s if the other end did not
accept the call. This is to cope with 56 kbps
networks in the USA.
Normally, keep this bit at 0.
4
Auto data rate change for reception
(64 kbps to 56 kbps)
0: Off 1: On 1: The machine automatically changes the
reception data after 6 s.
Change this bit to 1 only when there is a
communication error where the other
terminal informs 64 kbps in the SETUP
signal although it is actually 56 kbps.
5-7 Not used Do not change the settings.