User's Manual

Turbo PMAC2 VME Ultralite
Connector Pinouts 15
J5 (JRS232) Serial Port Connector
J5/JRS232 (10-Pin Header)
Front View
Pin # Symbol Function Description Notes
1 PHASE In/Out Phasing Clock See Notes 1, 2
2 DTR Bidirect Data Terminal 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 Request to Send PMAC ready bit
7 DSR Bidirect Data Set Ready Tied to DTR
8 SERVO In/Out Servo Clock See Note 2
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. This connector cannot be used for daisy chain communication interconnection of multiple PMACs,
although it can be used to share servo and phase clocks for synchronicity. The J5A RS-422 interface is
required for daisy chain communication.
Jumpers E17 and E18 must connect pins 1 and 2 to use this port for serial communications.
Note 1: If communicating to PMAC2 over this connector with a modem style terminal emulator such as
Microsoft Windows Terminal, line 1 should not be connected.
Note 2: Servo and Phase are outputs if jumper E1 is OFF; they are inputs if jumper E1 is On.