Contents
MetPak RG User Manual
Last Change
©
Gill Instruments Ltd
12 February, 2013
Page 11
Digital Output RS232 Connections (COMMS set for RS232)
This is the MetPak RG default communication configuration setting.
J5 Hub Box
8 Way Push fit Block
PC 9 Way D Type
Connector
Signal names
Terminal
Nos.
3 Pair Cable
Pin
No’s
Signal
Names
RS232 TX
RS232 RX
3
4
2
3
RXD
TXD
Signal Ground
2
5
Ground
Chasis Ground
Terminal
Post
Screen wires
NA
Chassis
Ground
V supply –
V
7
8
–
+
DC Power
supply
Figure 6
RS232 connections
Digital Output RS422 Connections (COMMS set for RS422)
This is not the default communications setting; ensure the MetPak RG has been
configured for this output requirement before wiring to a user device.
J5 Hub Box
8 Way Push fit Block
RS422 to RS232 or
USB Converter
Signal Names
Terminal
Nos.
4 Pair Cable
Signal Names
RS422 TX +
RS422 TX –
6
3
RX +
RX –
RS422 RX +
RS422 RX –
5
4
TX +
TX –
Signal 0v
2
Signal Ground
Chassis
Ground
Terminal
Post
Screen wires
Chassis Ground
V Supply –
V
7
8
–
+
DC Power Supply
Figure 7
RS422 connections