Table of Contents
Advertisement
Chapter 2. Installation
This document provides unpacking and installation instructions, and a description of external
connections.
2.1
Installation Requirements
The OM20 is designed to be easily installed on antenna offset feed struts or king posts. It requires
standard uni-strut type hardware (or comparable) and 3/8-16 bolts. Standard mounting brackets
and hardware are included with the OM20. Optional Transmit and Receive coaxial cable or
waveguide can be provided from the factory if requested and specified. If installing the OMS11
redundancy switch with the OM20, refer to the operational manual, TM133 Outdoor Modem
Switch for mounting requirements. Mating Connectors for Power (J1), Remote RS232/485/Fault
(J2), EIA-530/G703 Balanced data (J3), and Ethernet (J4) interface connections are supplied
standard with the unit. Use of an extended temperature CAT-5 cable such as Belden 7923A is
recommended for the Ethernet Data/M&C interface.
There are no user-serviceable parts or configuration settings located inside
the OM20 Chassis. There is a potential shock hazard internally at the power
supply modules. DO NOT open the OM20 Chassis under any circumstances.
Before initially applying power to the unit, it is a good idea to disconnect the
transmit output from the operating ground station equipment and terminate
it into an applicable load. This is especially true if the current OM20
configuration settings are unknown, where incorrect settings could disrupt
existing communications traffic.
MN-OM20– Revision 5
WARNING
CAUTION
2–1
Advertisement
Table of Contents
