Epson SQ-B50/2550 Technical Manual page 71

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Table 2-1. Connector Summary
REV.-A
Connector
Number
Reference
Unit
Number
Description
of Pins
Color
Table
SEIPS
CN1
AC power source input
3
White
SEIPSE
CN2
DC voltage (to SEIMA board)
10
White
SEIMA
CN1
8-bit standard parallel interface connector
36
-
CN2
Option interface connection
26
Black
CN3
RS-232C standard serial interface connector
26
Black
CN4
Option ID module connection (Slot A)
32
Black
CN5
Option font module connection (Slot B)
32
Black
CN6
Control panel (SEIPNL) control signal I/O
10
White
CN7
CG extension board expansion (See Note)
44
-
CN8
DC voltage input (+24VDC)
4
White
CN9
DC voltage input (+5VDC, + 12/-12VDC)
6
White
CN10
Carriage home position
6
Yerllow
CN 11
Ink-end sensor signal input
4
Red
CN12
Ink thermistor connection
2
Black
CN13
TE, CSF sensor signal input
5
White
CN14
Release solenoide drive signal output, Re-
4
White
lease sensor signal input
CN15
Carriage motor drive signal output, encoder
6
White
signal input
CN16
Paper feed motor drive signal output
6
Black
CN17
Edge holding motor drive signal output
6
Red
CN18
Pump motor drive signal output
2
White
CN19
Valve solenoid drive signal output
2
Red
CN20
Print head drive signal output
26
White
SEIPNL
CN1
Control panel control signal I/O
10
White
CN2
Cover open sensor signal input
3
White
NOTE: Not provided
2-3

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