PMAC-Lite Hardware Reference
36
Connector
Pinouts
J4 (JRS232) Serial Port Connector
J4 JRS232 (10-Pin Connector)
Front View
Pin #
Symbol
Function
Description
Notes
1 PHASE Output
Phasing
Clock
2
DTR
Bidirect
Data Term Ready
Tied to “DSR”
3
TXD/
Input
Receive Data
Host transmit data
4
CTS
Input
Clear to Send
Host ready bit
5 RXD/ Output
Send
Data
Host receive data
6
RTS
Output
Req. to Send
PMAC ready bit
7
DSR
Bidirect
Data Set Ready
Tied to “DTR”
8 SERVO Output
Servo
Clock
9 GND Common
PMAC
Common
10
+5V
Output
+5VDC Supply
Power supply out
The JRS232 connector provides the PMAC2-PC with the ability to communicate serially with an RS232
port. E107 and E108 must connect pins 1 and 2 to use this connector. This connector cannot be used for
daisychain interconnection of multiple PMACs – the J4A RS422 connector must be used for
daisychaining.
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