CiM-550 IP Enabled Satellite Modem

Rev. 2

Installation

CD/CIM550.IOM

The CiM-550 is very light - under 7 lbs (3.2 kgs), and very short - 12 ins (305 mm). For this reason, it has not been designed to have rack slides mounted to the side of the chassis. However, Comtech EF Data recommends that some method of support within the rack should be employed, such as rack shelves. If there is any doubt, please consult the factory.

2.3CONFIGURATION

There are no internal jumpers to configure, no interface cards to install, and no other options to install. All configuration is carried out entirely in software. The unit should first be configured locally, using the front panel keypad and display. The unit will ship with a default 64 kbps, QPSK, Rate 1/2 configuration. Please refer to the ‘FRONT PANEL OPERATION’ section for details on how to fully configure the unit for the desired operating parameters.

2.4SELECT INTERNAL IF LOOP

Correct operation of the unit may be verified rapidly, without the need for externally connected equipment. From the top level menu, select TEST, then IF LOOP (refer to the ‘FRONT PANEL OPERATION’ section) The demod should synchronize, and the green RECEIVE TRAFFIC LED should illuminate. If the unit does not pass this test, call the factory for assistance.

2.5CONNECT EXTERNAL CABLES

Having verified correct operation in IF loop, enter the desired configuration, and proceed to connect all external cables. If difficulties occur, please call the factory for assistance.

Please note that the modulator gives an output power level in the range 0 to -20 dBm, and the demodulator expects to see a signal in the range -30 to -60 dBm.

2.6CONNECTOR DESCRIPTION

External cables are attached to connectors on the rear panel of the CiM-550. These comprise the IEC line input connector, the Receive and Transmit IF connectors, the Data connector, Alarms connector, Remote Control connector, and Auxiliary Serial connector. See Appendix K for detailed connector pinouts.

The IEC line input connector contains the ON/OFF switch for the unit. It is also fitted with two fuses - one each for line and neutral connections (or L1, L2, where appropriate). These are contained within the body of the connector, behind a small plastic flap.

For 230 volt AC operation, use T0.5A, (slow-blow) 20 mm fuses. For 115 volt AC operation, use T1A fuses, (slow-blow) 20 mm fuses.

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