Ricoh S-C4.5, Руководство по обслуживанию на месте

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Address Function Unit Remarks
6805E4
Bit 2 sets the level of the
call signal, Bit 3 sets the
call signal impedance
Bit 2
0 RT=0 (Low)
-
1 RT=1 (High)
Bit 3
0 RZ=0 (High)
1
RZ=1
(Composite)
6805E5
Bit 0 sets the ring
detection method, Bit 1
sets the ring detection
method when fixed.
Bit 0
0 Auto
If any setting is changed,
select a setting that is higher
than the default setting.
1 Fixed
Bit 1
0 Use RDTP
1 Use RDTN
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)
If bit 0 or bit 2 is set to 1, the functions of the following RAM addresses are changed.
680508 (if bit 0 = 1) or 680538 (if bit 2 = 1): tolerance for on or off state
duration (%), and number of cycles required for detection, coded as in address 680533.
68050B (if bit 0 = 1) or 68053B (if bit 2 = 1): on time, hex code (unit = 20 ms)
68050C (if bit 0 = 1) or 68053C (if bit 2 = 1): off time, hex code (unit = 20 ms)
3. Pulse dial parameters (addresses 68054A to 68054F) are the values for 10 pps. If 20 pps is used,
the machine automatically compensates.
4. The first ring may not be detected until 1 to 2.5 wavelengths after the time specified by this parameter.
5. The calculated level must be between 0 and 10.
The attenuation levels calculated from RAM data are:
High frequency tone:
• – 0.5 x N
680552
/
680554
–3.5 dBm
NCU Parameters
221
5