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Commander Installation Guide
Issue 9 Trilogy Communications Limited Page 31 of 81
4. NETWORKING
4.1 CONNECTING NETWORKED SYSTEMS
The optional Network hardware comprises two components:
• 500-25 Network Card
• 500-26 Network Rear Connector Unit (RCU)
The RCU provides the interface to other networked Commander systems. Note that:
• Interconnection can be made by coax (BNC) or CAT5 (RJ45). It is not possible to “mix”
the interconnection methods. Having chosen the means of connection, do not fit any
other connectors.
• The coax cable connection requires two separate cables (RX and TX) for each link. The
CAT5 connection method requires only a single cable per link.
• Network connections are made on a point to point basis. Therefore, a complete system,
comprising a number of matrices, will always contain an even number of network cards.
See the diagram below which shows a three matrix LAN.
4.1.1 500-26 NETWORK REAR CONNECTOR UNIT (RCU)
To link two network systems, connect as shown on the following diagrams.
BNC -- data TX
BNC -- data RX
RJ45 – data TX/RX
RJ45 – data
TX/RX