Comtech EF Data CDM-Qx, Installation And Operation Manual

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CDM-Qx Satellite Modem Revision 6
Introduction MN/CDMQx.IOM
1.2.6 Remote Control
The operator may configure and monitor the modem from the front panel, or through the
remote M&C port. M&C is via RS-232, RS-485 (2/4 wire) or 10/100 BaseT Ethernet.
1.3 Major Assemblies
Assembly Description
PL/10570-1 1 PPM Reference IF Backplane 70/140 MHz IF
PL/10570-2 0.1 PPM Reference IF Backplane 70/140 MHz IF
PL/10070-1 0.1 PPM Reference IF Backplane L-Band IF
PL/10069 Digital Backplane
PL/10073 Monitor and Control Card
PL/11128 70/140 MHz IF Modulator
PL/10635 70/140 MHz IF Demodulator with Carrier in Carrier
PL/10071 L-Band IF Modulator
PL/10072
L-Band IF Demodulator with Carrier in Carrier
®
AS/11014 Turbo Codec – Simplex
PL/10678 EIA-530 Duplex Data interface
PL/10697 G.703 Balanced Duplex Data Interface
PL/10698 G.703 Unbalanced Duplex Data Interface
PL/12608-1 Quad E1 G.703 Data Interface Module
PL/10898-1 EIA-612/613 HSSI Interface
PL/10416-1 AC Chassis, 70/140 IF
PL/10416-2 DC Chassis, 70/140 IF
PL/12798-1 AC Chassis, L-Band
PL/12798-2 DC Chassis, L-Band
1.4 FAST Options and Hardware Options
The Modem is extremely flexible and powerful, and incorporates a large number of
optional features. Some customers may not require all of these features, and therefore, in
order to permit a lower initial cost, the Modem may be purchased with only the desired
modules and features enabled. If, at a later date, a customer wishes to upgrade the
functionality of a modulator or demodulator, Comtech EF Data provides a system known
as
FAST ( F ully A ccessible S ystem T opology) which permits the purchase and
installation of options through the use of special authorization codes entered through the
front panel, or remotely.
The base configuration of the modulators and demodulators are equipped with Viterbi
and R-S codecs. It offers modulation types, and data rates up to 5 Mbps. It is, however,
limited to Closed Network operation.
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