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Table A-4. CN5 Pin Assignments (Continued)
Pin No. Signal Name I/O Description
50
D24
I/O
Data bus bit 24
51
D9
I/O
Data bus bit 9
52
D25
I/O
Data bus bit 25
53
D10
I/O
Data bus bit 10
54
D26
I/O
Data bus bit 26
55
D11
I/O
Data bus bit 11
56
D27
I/O
Data bus bit 27
57
D12
I/O
Data bus bit 12
58
D28
I/O
Data bus bit 28
59
Vcc
+5 VDC
60
D29
I/O
Data bus bit 29
61
D13
I/O
Data bus bit 13
62
D30
I/O
Data bus bit 30
63
D14
I/O
Data bus bit 14
64
D31
I/O
Data bus bit 31
65
D14
I/O
Data bus bit 14
66
A16
O
Address bit 7
67
R/B
Not used
68
NC
Not connected
69
NC
Not connected
70
NC
Not connected
71
A15
O
Address bit 15
72
Vss
Ground
Table A-5. CN202 Pin Assignments
Pin No. Signal Name I/O Description
1
+5
+5 VDC
2
TH
I
Fuser temperature
Table A-6. CN203 Pin Assignments
Pin No. Signal Name I/O Description
1
PS1
I
Paper take-up sensor
2
GND1
Ground
3
PS1
I
Paper take-up sensor
4
NC
No connected
5
+24V
+24 VDC
6
FEED1
O
Paper take-up solenoid drive
Appendix EPL-5500 Service Manual
A-8 Rev. A