Rs-232C Settings; Rs-232C Cable; Pin Assignments - Epson RC520 Manual

9. RS-232C Settings

The Standard RC520 Control Unit comes with two RS-232C channels to facilitate
controlling of the data communication among the host computer and peripheral
equipment.

9.1 RS-232C cable

RS-232C cables are not included with the standard RC520 Controller.
must prepare them as necessary.
Communication Connector
The cable must be shielded twisted pair. Clamp the shield to the connector hood to
prevent noise.

9.1.1 Pin Assignments

Pin assignments for RS-232C connectors are as follows:
Pin No.
RC520 Rev.7
Connector
(Abbr.) Signal Name
1 CD Data carrier detect
2 RD Receive data
3 SD Send data
4 ER Terminal ready
5 SG Signal ground
6 DR Data set ready
7 RS Request to send
8 CS Clear to send
9 RI Ring indicator
Setup & Operation 9. RS-232C Settings
Standard
D-Sub 9 pin
#4-40 screw
Signal Direction
Output
Output
Output
The user
Input
Input
–
Input
Input
Input
101