Ricoh D072 Service Manual page 623

NCU Parameters
Address
6805E0 bit Maximum wait time for post
3 message
Bit 2 sets the level
of the call signal, Bit
6805E4
3 sets the call
signal impedance
Bit 0 sets the ring
detection method,
Bit 1 sets the ring
6805E5
detection method
when fixed.
Bits 2 to 7: Not used
NOTES
1. If a setting is not required, store FF in the address.
2. Italy and Belgium only
RAM address 68055E: the lower four bits have the following meaning.
Bit 2 - 1: International dial tone cadence detection enabled (Belgium)
Bit 1 - Not used
Bit 0 - 1: PSTN dial tone cadence detection enabled (Italy)
D067/D068/D069/D072
Function
0: 12 s
1: 30 s
0 RT=0 (Low)
Bit 2
1 RT=1 (High)
0 RZ=0 (High)
Bit 3
RZ=1
1
(Composite)
0 Auto
Bit 0
1 Fixed
0 Use RDTP
Bit 1
1 Use RDTN
7-84
1: Maximum wait time
for post message
(EOP/EOM/MPS) can
be changed to 30 s.
Change this bit to "1" if
communication errors
occur frequently during
V.17 reception.
-
If any setting is changed,
select a setting that is
higher than the default
setting.
SM Appendix