Comtech EF Data CRS-280L - Manual (Page 19)

1–1
Chapter 1. INTRODUCTION
1.1 Overview
Figure 1-1. CRS-280L L-Band IF Switch for 1:N Redundancy
The CRS-280L L-Band IF Switch (Figure 1-1) is designed to support redundancy systems
featuring one Redundant (backup) Modem and up to 10 Traffic Modems (prime channels).
Operation of the CRS-280L is controlled by the switching system to which it is connected. The
CRS-280L is designed for use with the following Comtech EF Data products:
Modem Remarks Max 1:N Redundancy
CDM-570L Used with CRS-300 or CRS-500 1:10
CDM-600L
Used with CRS-300 or CRS-500 w/CRS-350 (ESC only) 1:10
CLM-9600L
CDM-625
SLM-5650A
SDM-300L3** Used with SMS-7000** 1:8
SDM-2020D**
(L-Band)
Used with CRS-400 (HSSI)** 1:10
** Indicates a Comtech EF Data legacy product that is no longer in production
The CRS-280L replaces the following Comtech EF Data active or legacy products:
• IFU for SMS-7000 L-Band applications.
• CRS-280 IF switch for L-Band applications (CRS-300/CRS-500)
The CRS-280L features redundant power supplies with status LEDs on the front panel. It may be
configured for 4 to 10 channel applications (SMS-7000 supports 8 channels max). Each channel