Comtech EF Data CRS-500 User Manual

Page 207

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CRS-500 1:N Redundancy System

Revision 2

Appendix B

MN-CRS500

B–9

B.3.4 CRS-520 TMI – 10/100 Ethernet Connectors (RJ-45F)

The CRS-520 TMI provides four standard RJ-45F User Interface ports, operating at 10/100 Mbps,

half and full duplex, auto-negotiating for Ethernet Router Modes.

Table B-7 indicates the typical pinout for each of these connectors (10/100 Ethernet User “Port

1” through “Port 4”).

User Port 1 is reserved for use as the CRS-500 Ethernet System Communication

connection between the CRS-500 and the modems.

To avoid Ethernet Networking loops, CDM-625s operating in IP Packet Processor

Router Mode use only a single port of the CDM-625’s remaining available ports

(i.e., “Port 2” OR “Port 3” OR “Port 4”) to convey traffic data for each modem at

any given time.

Table B-7. 10/100 Ethernet Connector Pinout (Typical)

Pin #

Signal Function

Direction

1

Tx+

Tx only

2

Tx-

Tx only

3

Rx+

Rx only

4

N/C

–

5

N/C

–

6

Rx-

Rx only

7

N/C

–

8

N/C

–