CN18 - NCU
Pin
Name
Function
V
A1
COM1
B1
COM1
A2 5EXTDI
B2 EXRING
A3
PRG1
B3 XRITON
A4
PRG0
B4 EXHOK1
A5 EXHOK0
B5 NCUSIG
A6 NCUSL0
B6 NCUSL4
A7 NCUSL1
B7 N.C.
A8
1DISW
B8
- 5V
A9
+ 24V
B9
COM1
A10 COM1
B10
+ 5V
A11
COM1
Ground
0
Ground
0
Service mode (L: Enabled) 5
Ringing signal detector output 5
FromVariable Resistor
0
Not used
0
To Variable Resistor
0
Dc loop detection (active L) 5
Dc loop detection (active L) 5
Tx/Rx signal
0
Ds relay drive (L: On)
0
OH relay drive (H = Fax) 0
Gs relay drive (L: On)
5
Not used
5
Di switch drive (active H) 0
Not used
Not used
Not used
Not used
Power supply to NCU
5
Ground
0
B11
COM1 Ground
0
CN19 - Printer Jam Sensor (SB-5)
Pin
Name
Function
V
1
+ 5V Power supply
5
2
COM1 Ground
0
3
5SB5 Sensor output (analog)
0.2
CN20 - Paper Width Jam Sensor (SB-AB - Asia
only)
Pin Name
Function
V
1
+ 5V Power supply
2
COM1 Ground
3
5SBAB Sensor output (analog)
2. SRAM
CN1 - FCU
See FCU CN1.
3. SBU
CN2 - FCU
See FCU CN10.
Note: The pin numbers are reversed.
7-6
To Next Page
Loading...
