beautypg.com

A.5 1:1 redundancy system cabling and installation – Comtech EF Data SPOD PS 1, PS 1.5, and PS 2 C-, X-, or Ku-Band User Manual

Page 133

background image

SPOD C-, X-, or Ku-Band Outdoor Amplifier

MN-SPODPSX

Appendix A

Revision 1

A–7

A.5

1:1 Redundancy System Cabling and Installation

Figure A-3 shows the schematic diagram for cabling 1:1 Redundancy applications. For any 1:1

Redundancy System setup, care should be exercised in cable installation:

• Install the cables using the most direct route – avoid all sharp bends.

• Secure all cables with clamps and ties.

• Cable connectors used in outdoor applications – Type ‘N’ connectors and military style (MS)

connectors in particular – must be sealed to avoid moisture seepage. Moisture can seep

into junctions at the plug end of the connector, between the fixed and movable parts, and

where the cable connects to the connector. In the presence of such seepage, signal

attenuation and possible loss of signal can occur. Therefore, seal all cable junctions with a

self-amalgamating tape, such as 3M Type 23 Scotch Self-Amalgamating tape, or equivalent.

For details about the cables used in both Standalone and 1:1 Redundancy applications, see

Appendix B. CABLE DRAWINGS.