Ricoh IM C300 Service Manual page 1576

NCU Parameters
21 680554 PSTN: DTMF tone attenuation level
after dialling
22 680555 ISDN: DTMF tone attenuation level
after dialling
•
A: Pulse dial parameters (addresses 68054A to 68054F) are the values for 10 pps. If 20 pps is
used, the machine automatically compensates.
•
B: The first ring may not be detected until 1 to 2.5 wavelengths after the time specified by this
parameter.
•
C: The calculated level must be between 0 and 10.
The attenuation levels calculated from RAM data are:
High frequency tone:
– 0.5 x N680552/680554–3.5 dBm
– 0.5 x N680555 dBm
Low frequency tone:
– 0.5 x (N680552/680554 + N680553) –3.5 dBm
– 0.5 x (N680555 + N680553) dBm
*Note: N680552, for example, means the value stored in address 680552(H)
•
D: 68054A: Europe - Between Ds opening and Di opening, France - Between Ds closing and
Di opening
68054D: Europe - Between Ds closing and Di closing, France - Between Ds opening and Di
closing
•
E: 68054A, 68054D, 68054E: The actual inter-digit pause (pulse dial mode) is the sum of the
period specified by the RAM addresses 68054A, 68054D, and 68054E.
SM
-N x 0.5
–3.5
dBm
-dBm x
0.5
101
See Note C.
SP2-103-022
See Note C.
SP2-103-023
See Note C.
D0CK