Ricoh FAX2900L Service Manual page 128

NCU PARAMETERS
Address
81E582 Bits 0 and 1 - Handset off-hook detection time
Bit
Bits 2 and 3 - Handset on-hook detection time
Bit
Bits 4 to 7 - Not used
81E5A1 Acceptable CED detection
frequency upper limit (high byte)
81E5A2 Acceptable CED detection upper
frequency upper limit (low byte)
81E5A3 Acceptable CED detection
frequency lower limit (high byte)
81E5A4 Acceptable CED detection upper
frequency lower limit (low byte)
81E5A5 CED detection time
81E5A6 Acceptable CNG detection
frequency upper limit (high byte)
81E5A7 Acceptable CNG detection upper
frequency upper limit (low byte)
81E5A8 Acceptable CNG detection
frequency lower limit (high byte)
81E5A9 Acceptable CNG detection upper
frequency lower limit (low byte)
81E5AA Not used
81E5AB CNG on time
81E5AC CNG off time
81E5AD Number of CNG cycles required for
detection
81E5AE Not used
81E5AF Acceptable AI short protocol tone
(800Hz) detection frequency upper
limit (high byte)
81E5B0 Acceptable AI short protocol tone
(800Hz) detection upper frequency
upper limit (low byte)
Function
1 0 Setting
0 0 200 ms
0 1 800 ms
Other Not used
3 2 Setting
0 0 200 ms
0 1 800 ms
Other Not used
Unit
BCD If both addresses contain
(Hz) FF(H), tone detection is
disabled.
BCD If both addresses contain
(Hz) FF(H), tone detection is
disabled.
20 ms Factory setting: 200 ms
± 20 ms
BCD If both addresses contain
(Hz) FF(H), tone detection is
disabled.
BCD If both addresses contain
(Hz) FF(H), tone detection is
disabled.
Do not change these
settings.
20 ms Factory setting: 500 ms
20 ms Factory setting: 200 ms
The data is coded in the
same way as address
81E533.
Factory setting: 23(H)
Do not change this setting.
BCD If both addresses contain
(Hz) FF(H), tone detection is
disabled.
4-48
21 May, 1999
Remarks