Features; Physical Description; Standard Assemblies; Optional Assemblies - Comtech EF Data CDM-800 Installation And Operation Manual

CDM-800 Gateway Router
Introduction
•
The bidirectional data interface connects to the customer's equipment (assumed to be the
DTE) and the unit (assumed to be the DCE). All terrestrial data is connected using the
available 10/100/1000 BaseT Gigabit Ethernet interface.
The platform includes support for Constant Coding and Modulation (CCM) operation.
DVB-S2 Transmitter: The CDM-800's modulator supports enhanced GSE encapsulation and
label filtering insertion for up to 2,047 unique labels. It supports DVB-S2 QPSK, 8-PSK,
16-APSK and 32-APSK modulation up to 62 Msps with transmit data rates up to 168 Mbps
depending on the modulation type and code rate.
In DVB-S2 operation, the transmitter operates in the CCM mode. The receive modem automatically
detects for spectral inversion and pilots ON/OFF, and supports spectral rolloff of 20%, 25% or 35%.
1.3

Features

1.3.1

Physical Description

The CDM-800 Gateway Router is constructed as a 1RU-high rack-mounting chassis, which can be
free-standing if desired. Handles at the front to facilitate removal from and placement into a rack.
The unit uses a single printed circuit board assembly for high reliability. All operational upgrades
and enhancements are afforded via remote firmware upgrade.
1.3.1.1

Standard Assemblies

Assembly
PL-0000820
PL-0000809
PL-0000851
1.3.1.2

Optional Assemblies

Assembly
KT/6228-2
KT/6228-3
1.3.2

Compatibility

Comtech EF Data's CDM-840 Remote Router receives DVB-S2 interoperable with the
CDM-800's transmitter, and receives L-Band up to 62 Msps – compatible with the CDM-800.
Description
CDM-800 Base Chassis Assembly (AC)
CDM-800 PCB Assembly
CDM-800 Modulator Board Assembly
Description
Rear-Mounting SupportBracket, 4"
Rear-Mounting SupportBracket, 10"
Where Installed
–
CDM-800 chassis
CDM-800 chassis
Where Installed
Sides of chassis / rear of mounting rack – See
Sect. 2.2.1
1–3
Revision 0
MN-CDM800