Verification; Data Interfaces; Major Assemblies; Fast Options And Hardware Options - Comtech EF Data CDM-570L Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Introduction
1.1.4

Verification

The unit includes many test modes and loopbacks for rapid verification of the correct
function of the unit. In particular, the IF loopback permits the user to perform a quick
diagnostic test without disturbing external cabling. During the loopback, all the receive
configuration parameters are temporarily changed to match the transmit side, and an
internal RF switch connects the modulator output to the demodulator input. When normal
operation is again selected, all of the previous values are restored.
1.1.5

Data Interfaces

The CDM-570/570L includes, as standard, a universal data interface that eliminates the
need to exchange interface cards for different applications. The interfaces offered
include:
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1.2

Major Assemblies

Assembly
AS/10901
AS/9979
AS/10554
AS/10551
PL/10047-1
PL/10235
1.3

FAST Options and Hardware Options

The CDM-570/570L is extremely flexible and powerful, and incorporates a large number
of optional features. In order to permit a lower initial cost, the modem may be purchased
with only the desired features enabled. If, at a later date, a user wishes to upgrade the
functionality of a modem, Comtech EF Data provides FAST (Fully Accessible System
Topology) which permits the purchase and installation of options through special
authorization codes, entered remotely, or through the front panel.
The base unit is configured with a Viterbi codec. It offers BPSK, QPSK, and OQPSK
modulation types, and data rates up to 512 kbps, with all interface types except G.703.
EDMAC and AUPC operation are included.
EIA-422 (EIA530) DCE (at rates up to 9.98 Mbps)
X.21 DTE and DCE (at rates up to 9.98 Mbps)
V.35 DCE (at rates up to 9.98 Mbps)
Synchronous EIA-232 DCE (at rates up to 300 kbps)
G.703 E1 (2048 kbps), balanced and unbalanced
G.703 T1 (1544 kbps), balanced
Optional – integrated 10/100 BaseT Ethernet interface
Description
Modem Card - CDM-570
Modem Card - CDM-570L
Turbo Codec
Reed-Solomon Codec
Chassis
IP Module 10/100 BaseT Ethernet Interface (optional)
1–3
Revision 4
MN/CDM570L.IOM