Xerox 4520 User Manual page 235

Figure A.4 Pin assignment for RS-232C
Signal Name
Chassis GND
Transmitted Data
Received Data
Request to Send
Clear to Send
Data Set Ready
Signal GND
Carrier Detect
N/C
Send Data Noninverted
Receive Data Noninverted
Send Data inverted
N/C
Receive Data Inverted
Data Terminal Ready
N/C
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
The interface signals and their associated pin assignments
are identified in the Figure A.4.
RS-232C
Pin #
Function
1 GND
2 Data
3 Data
4 Control
5 Control
6 Control
7 GND
8 Control
9, 10, 12 - - - - - -
11 - - - - - -
13 - - - - - -
14 - - - - - -
15, 17 – 19 - - - - - -
16 - - - - - -
20 Control
21 – 25 - - - - - -
C a b l e S p e c i f i c a t i o n s
Direction
- - - - - -
From Printer
To Printer
From Printer
To Printer
To Printer
- - - - - -
To Printer
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
From Printer
- - - - - -
A-9