Product specifications

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision 7
Introduction MN/CDMQx.IOM
1–5
1.3 Features
1.3.1 Physical Description
CDM-Qx/QxL Multi-Channel Satellite Modem is constructed as a 1RU-high rack-mounting chassis,
which can be free-standing if desired. Rack handles at the front facilitate removal from and placement
into a rack.
1.3.2 Compatibility
The CDM-Qx/QxL is backwards compatible with a number of Comtech EF Data CDM, SDM,
and
SLM modems.
1.3.3 Major Assemblies
CDM-Qx 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/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/12960-1 AC Chassis, 70/140 IF
PL/12960-2 DC Chassis, 70/140 IF
CDM-QxL Major Assemblies
Assembly Description
PL/10070-1 0.1 PPM Reference IF Backplane L-Band IF
PL/10069 Digital Backplane
PL/10073 Monitor and Control Card
PL/10071 L-Band IF Modulator
PL/10072
L-Band IF Demodulator with Carrier in Carrier®
PL/12798-1 AC Chassis, L-Band
PL/12798-2 DC Chassis, L-Band
CDM Qx/QxL Optional Assemblies
Assembly Description
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 (E1/T1)
PL/10635 G.703 Unbalanced Duplex Data Interface (E2)
PL/12608-1 Quad E1 G.703 Data Interface
PL/10898-1 EIA-612/613 HSSI Interface