Oki B6500

7 – 17
Chapter 7 Wiring Diagrams and Signal Information
Option Duplex
Signal line name Description
FAN ALARM Fan monitor signal. This signal goes High if there is a trouble with FAN DUP J2.
/DUP SNR ON Signal from SENSOR DUP. This signal goes Low when light is received.
/DUP COVER OPEN
Signal from SWITCH DUPLEX. This signal goes Low when the cover of Duplex
(COVER HSG DUP) is closed.
A and B Excitation signal for MOTOR DUPLEX. Phases A and B.
/A and /B Excitation signal for MOTOR DUPLEX. Phases /A and /B.
HVPS/ MCU
PL12.1.19
HARNESS
ASSY LVPS
PL12.1.1
HARNESS
ASSY DUP
PL21.1.7
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
9
8
7
6
5
4
3
2
1
10
P/J2750 P/J50
PWBA DUPLEX
PL21.1.32
FAN DUP J2
PL21.1.33
HARNESS ASSY
DUP SNR PL21.1.35
HARNESS ASSY
DUP COVER
PL21.1.31
HARNESS ASSY
DUP EARTH
PL21.1.28
SENSOR DUP
PL21.1.34
SWITCH
DUPLEX
PL21.1.27
MOTOR
DUPLEX
PL21.1.29
7
6
5
4
3
2
1
8
P/J27
LG
3.3V DC
TXD
RTN
RTN
24V DC
24V DC
RXD
N.C.
N.C.
N.C.
N.C.
2
3
1
P/J54
2
3
1
P/J53
Pull Up 3.3V
FAN ALARM
24V RTN
24V DC
2
3
4
5
1
P/J51
P/J56
A
B
/ A
/ B
24V DC
/ DUP SNR ON
/ DUP COVER OPEN
LG
LG
2
1
3
P/J530
1
2
P/J520
2
1
P/J52
P/J560