Comtech EF Data CRS-180 - Manual (Page 75)

CRS-180 70/140 MHz IF 1:1 Redundancy Switch MN/CRS180.IOM
Cables and Connections Revision 11
5–15
5.2.2.2.3 Router Mode (Requires Optional IP Packet Processor)
When the optional IP Packet Processor is installed and enabled, you should use Port 1 of
each modem for M&C purposes only. Reserve use of Port 2, 3, or 4 for each modem for
Ethernet traffic only.
TO AVOID ETHERNET NETWORKING LOOPS – Make sure to connect Port 1 (M&C) and
the designated Traffic Port to separate Layer 2 Switches, unless your Layer 2 Switch is
configured to isolate these ports by using VLANs.
Figure 5-14 shows the block diagram for a CDM-625/A 1:1 modem configuration using the IP
(10/100 Ethernet) Interface in Router Mode, with the optional IP Packet Processor installed and
enabled. The Figure 5-15 cabling example shows Ethernet Port 2 as the designated Ethernet
traffic connection.
This configuration requires no cabling kit – you must use user-provided Ethernet cables and
Layer 2 switch(es) for direct connection to the modem.
Figure 5-14. CDM-625/A Block Diagram 10/100 Ethernet 1:1 Example – Router
Mode