Ncu Parameters - Ricoh FAX680MP Service Manual

31 March, 1997

4.4 NCU PARAMETERS

No. Name
00 After selecting a country, all the following parameters are reset to the
country's defaults.
01 LEVL Tx signal level from the modem.
Range: 0 to -15 dBm
02 RID0 Acceptable ringing signal detection
frequency, range 1 lower limit
03 RID1 Acceptable ringing signal detection
frequency, range 1 upper limit
04 RID2 Acceptable ringing signal detection
frequency, range 2 lower limit
05 RID3 Acceptable ringing signal detection
frequency, range 2 upper limit
06 RID4 Number of rings until a call is detected.
While PC-FAX is enabled, "RID4 setting
+3" is used.
07 RDT0 Do not change the setting.
08 RDT1 Non-detectable ring frequency; used for
the pulse immunity test in some countries.
09 DLST Time from OH Relay ON to dialing the first
digit.
10 RPST Time from dialing end to the start of CED
detection.
11 BRKT Break time (in pulse-dialing mode)
12 MAKT Make time (in pulse-dialing mode)
Calculation: 1 ms (033 = 33 ms)
13 MINP Minimum pause between dialing digits (in
pulse-dialing mode)
14 PAUT Pause time for a "Pause" key input
Calculation: 20 ms (033 = 0.66 s)
15 DTON DTMF ON time
16 DTOF DTMF OFF time
17 DTLV DTMF tone attenuation level (high
frequency)
18 REDT Redial interval
Calculation: 2.56 s (025 = 64 s).
19 REDC Number of total redial attempts
20 RST0 Ring reset time
21 BRIT Broadcasting interval
Function & Meaning
4-21
NCU PARAMETERS
Formula Remarks
≤
- N dBm
0 N
1000
Hz
≤
0 N
5N
1000
Hz
≤ ≤
0 N
5N
1000
Hz
≤ ≤
0 N
5N
1000
Hz
≤ ≤
0 N
5N
≤ ≤
N times 0 N
≤ ≤
0 N
1000
Hz
5N
≤ ≤
160N ms 0 N
≤ ≤
2.56N ms 0 N
≤ ≤
N ms 0 N
≤ ≤
N ms 0 N
≤ ≤
20N ms 0 N
≤ ≤
20N ms 0 N
≤ ≤
0 N
5N ms
≤ ≤
5N ms 0 N
Low freq.
≤ ≤
-N dBm 0 N
High freq.
-(N+2) dBm
≤ ≤
2.56N s 0 N
≤ ≤
N times 0 N
≤ ≤
0 N
160N ms
≤ ≤
2.56N s 0 N
≤
15
≤
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127