Xerox 4520 User Manual
Page 237
C a b l e S p e c i f i c a t i o n s
A p p e n d i x A : P r i n t e r a n d C a b l e S p e c i f i c a t i o n s
❖
A-11
The interface signals and their associated pin assignments
are identified in the Figure A.5.
Figure A.5
Pin assignment for RS-422A
Signal Name
Pin #
RS-422A
Function
Direction
Chassis GND
1
GND
- - - - - -
Transmitted Data
2
- - - - - -
- - - - - -
Received Data
3
- - - - - -
- - - - - -
Request to Send
4
- - - - - -
- - - - - -
Clear to Send
5
- - - - - -
- - - - - -
Data Set Ready
6
- - - - - -
- - - - - -
Signal GND
7
GND
- - - - - -
Carrier Detect
8
- - - - - -
- - - - - -
N/C
9, 10, 12
- - - - - -
- - - - - -
Send Data Noninverted
11
Data
From Printer
Receive Data Noninverted
13
Data
To Printer
Send Data inverted
14
Data
From Printer
N/C
15, 17 – 19
- - - - - -
- - - - - -
Receive Data Inverted
16
Data
To Printer
Data Terminal Ready
20
- - - - - -
- - - - - -
N/C
21 – 25
- - - - - -
- - - - - -
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