user manual

CiM-25/600L IP Enabled M&C Rev. 1
Installation CD/CIM25600L.IOM
4
2.3 CONNECTING CIM-25 TO EQUIPMENT
The CiM-25 is designed to connect directly (no cabling) to supported Comtech EF Data
Modems, Frequency Converters, or Solid State Power Amplifiers using the equipment’s
9-pin remote control interface port. The CiM-25 interfaces to this equipment via a RS-
232 interface at a baud rate of 19200 bps and a data format of 8-N-1. Therefore, it is
necessary to first select the RS-232 interface type on the interfacing equipment prior to
connecting the CiM-25 to said equipment. Some equipment automatically selects a unit
address of 0 when RS232 is chosen while other equipment require the user to configure
the unit remote control address to 1. In addition, on equipment that supports multiple data
formats the user must select 8-N-1 format.
2.3.1 POWERING THE CIM-25
The CiM-25F can accept power either on pin 4 of the DB9 interface to the equipment or
via the power jack located next to the RJ-45 connector. An optional AC/DC adapter can
be purchased to provide the CiM-25F power via the power-jack connector.
The CiM-25M accepts power via the power jack located next to the RJ-45 connector. An
AC/DC adapter must be purchased to provide power to the CiM-25M.
All CDM-550, CDM-600, and CDM-600L modems shipped from the factory after June
1, 2001 have been modified to supply the 5 Vdc signal on pin 4. All units shipped from
the factory prior to this date DO NOT provide the 5 Vdc on pin 4. A field modification
kit is available and can be purchased for CDM-550, CDM-600, and CDM-600L modems
shipped prior to this date
There is no ON/OFF switch for the CiM-25.
2.3.2 CIM-25 CONNECTORS
There are three connectors located on each CiM-25. Each is defined below:
 RJ-45 - 10base T Ethernet interface.
 DB9 – RS-232 equipment interface (either male or female)
 1.3mm – DC Power Jack
The pinout details for these connectors are provided below.