Installation guide

2.4.1 RS232 Data Port
The RMC30 is equipped with a single EIA/TIA RS232 compliant port, consisting of three terminals:
Transmit, Receive, and Common. The RS232 port is intended for point-to-point applications only. The
EIA/TIA guidelines for RS232 communications include (but are not limited to) the following:
1. To minimize the effects of ambient electrical noise, shielded cabling is recommended.
2. Reliable communications within 15m. Greater distances are possible.
3. Communications of up to 120kbaud signal rate.
The RMC30's RS232 port does not use an industry standard DB9 connector but rather a 'Phoenix' style
compression connector. See Table 1 and Drawing 3 for pinouts.
The RS232 data port has two modes of operations; only one mode is active at any given time:
1. Communications with IEDs (intelligent electronic devices such as PLC, RTU, etc.)
2. Console configuration of the RMC30.
Two activate console configuration mode the user must press the <CTRL>Z key for approximately 10
seconds during power up. To deactivate console mode requires restting the RMC30.
Table 1 - RS232 DB9 Pinouts
RMC30 Connector DB9 Connector Pin:Signal
RS232:Tx 2:RD (Receive Data)
RS232:Rx 3:TD( Transmit Data)
COM 5:SGND (Singnal Ground)
RuggedCom
®
12 RuggedMC™ RMC30 Installation Guide Rev 105
Drawing 7 - RS232 DB9 Cable Wiring
5
4
3
2
1
9
8
7
6
Rx
Tx
COM
-Rx
+Rx
-Tx
+Tx
RMC30 Phoenix
Connector
DB9 Female
Connector
RS232
RS485
RS422