Installation
Document No. D106-009
Page 10 of 76
Revision 1.15
2.
INSTALLATION
2.1.
MODULE LAYOUT
The module has three ports at the bottom of the enclosure as shown in the figure below. The
ports are used for Ethernet, RS232 or RS485 serial, and power. The power port uses a three-
way connector which is used for the DC power supply positive and negative (or ground)
voltage as well as the earth connection.
The Ethernet cable must be wired according to industry standards which can be found in the
additional information section of this document.
When using the RS232 version the RS232 port uses a four way connector. This provides
connection for the communication transmit (TX), receive (RX), and ground (GND) conductors.
The fourth connection (earth) is used for shielding the cable in high noise environments.
Figure 2.1. – Modbus Router (RS232) side and bottom view
When using the RS485 version the RS485 port uses a four way connector. This provides
connection for the communication positive (+) and negative (-) conductors (the third
connector is N/A). The fourth connection (earth) is used for shielding the cable in high noise
environments.