Rear Panel Optional Features; Standard Data Interfaces; Verification - Comtech EF Data CDM-570A Installation And Operation Manual

1.2.3.2.2

Rear Panel Optional Features

As per Figure 1-4, from left to right:
Power Interfaces:
•
-24V DC or -48V DC Primary Input Power Supply with Screw-in Fuse Holders.
•
24V DC 90 Watt BUC Power Supply (AC Input or DC Input versions).
•
48V DC 150 Watt BUC Power Supply (AC Input or DC Input versions).
Utility and Traffic Data Interfaces:
•
(1X) "Console" RJ-11 modular jack. When equipped with the optional Packet Processor,
this port provides access to the Serial CLI (Command Line Interface).
•
(1X) "Ethernet 10/100 | Traffic 100" RJ-45 modular port. When equipped with the optional
Packet Processor, this port processes 10/100 BaseT Ethernet-based traffic.
•
(1X) "1:1 Control" DB-9F connector for to connect the modem only to a CRS-170A (L-
Band) or CRS-180 (70/140 MHz) switch in optional 1:1 redundancy configurations.
Mounting Tabs for Rear Panel Rack Support Brackets Kits:
•
KT/6228-2 4" Rear-Mounting Support Brackets Kit.
•
KT/6228-3 10" Rear-Mounting Support Brackets Kit.
1.2.4

Standard Data Interfaces

The modem includes, as standard, a universal data interface that eliminates the need to
exchange interface cards for different applications. The interfaces offered include:
•
EIA-422 (EIA-530) DCE (at rates up to 10.239 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
1.2.5

Verification

The modem includes many test modes and loopbacks for rapid verification of correct modem
function. The IF loopback, in particular, permits execution of a quick diagnostic test without
disturbing external cabling. During the loopback, all the receive configuration parameters
temporarily change to match the transmit side, and an internal RF switch connects the modulator
output to the demodulator input. All of the previous values are restored once normal operation is
again selected.
Introduction
CDM-570A/570AL Satellite Modem with Optional Packet Processor
1–9
Revision 5
MN-CDM570A