Comtech EF Data CRS-500, Installation And Operational Manual

Page: 197 / 220

CRS-500 1:N Redundancy System
Revision 4
Appendix B B–1 MN-CRS-500
Appendix B. CONTROLLER / TMI
CONNECTORS and PINOUTS
B.1 Overview
Operational settings are factory-set for each TMI (Traffic Modem Interface) card shipped with the
CRS-500 1:N Redundancy system. This appendix provides reference information for cabling,
verification, and troubleshooting applications.
Once the CRS-500 components and all the modems have been rack-mounted, you must properly
attach all required cabling.
Chapter 5. CABLES AND CONNECTIONS provides a variety of
control, traffic data, and IF configuration examples on a system-level or per-modem basis. In
most cases, the modem accepts the male end of the cable, while connectors on the TMI card
installed at the rear panel of the CRS-500 Data Switch Unit (DSU) accept the female end of the
cable in the section of the card labeled “Modem Interface.”
All cables for interconnecting the CRS-500 1:N Redundancy System components and modems
are available from Comtech EF Data. You can order these cables at the same time the CRS-500
1:N Redundancy System is ordered. For user-fabricated cables, all cabling between each modem
and TMI should be of shielded, twisted-pair construction, with the grounded shield bonded to the
back shell. Use the connector type and pinout specifications provided in this appendix and in
Appendix A. CABLE DRAWINGS to wire all data cables correctly.
Leave the CRS-500 and all modems powered OFF until all connections are
ready.
B.2 Cabling Connection Types
Comtech EF Data Switches and Satellite Modems use a number of different cables. Each cable
type is typically dedicated to a specific mode of operation.
1) Not all of these operational interface types may be available.
2) The European EMC Directive (EN55022, EN50082-1) requires
using properly shielded cables for DATA I/O. These cables must
be double-shielded from end-to-end, ensuring a continuous
ground shield.