Comtech EF Data DD2401 VME - Manual (Page 15)

DD2401 VME L-Band Demodulator Card Installation & Operational Manual Installation
MN-VME2401 – Rev. B 2-1
Installation 2
This section provides unpacking and installation instructions, and a description of external
connections.
2.0 Installation Requirements
The VME2401 demodulator card is designed to be installed within any standard VME-compliant
cabinet.
2.1 Unpacking
The VME Demodulator Card was carefully packaged to avoid damage and should arrive
complete with the following items for proper installation:
1. VME L-Band Demodulator Card
2. Installation and Operation Manual
2.2 Removal and Assembly
If using a knife or cutting blade to open the carton, exercise caution to insure that the blade does
not extend into the carton, but only cuts the tape holding the carton closed. Carefully unpack the
unit and ensure that all of the above items are in the carton.
2.3 Mounting Considerations
When mounted in an equipment cabinet, adequate ventilation must be provided. The ambient
temperature in the cabinet should preferably be between 10
° and 35° C, and held constant for
best equipment operation. The air available to the cabinet should be clean and relatively dry. The
unit should not be placed immediately above a high heat or EMF generator to ensure the output
signal integrity and proper receive operation.
2.4 Demodulator Checkout
The following descriptions assume that the VME Demodulator Card is installed in a suitable
chassis.
2.4.1 Initial Power-Up
The VME Demodulator Card is shipped from the factory with preset factory defaults. upon initial
power-up, a user check should be performed to verify the shipped demodulator configuration.
The following are standard VME Demodulator Card Factory Configuration Settings:
Data Rate: 2,048 Kbps
Forward Error Correction (FEC): 1/2 Rate Viterbi
Frequency: 950 MHz (L-Band)
Interface: RS422