Front Panel; Rear Panel; Figure 1-4. Crs-311 Front Panel; Figure 1-5. Crs-311 Rear Panel Configuration Example - Comtech EF Data CRS-311 Installation And Operation Manual
1:1 redundancy switch, accessory product for use only with comtech ef data cdm-qx/qxl and slm-5650/5650a modems (modem firmware and hardware requirements apply)
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CRS-311 1:1 Redundancy Switch
Introduction
1.3.2 Front Panel
Figure 1‐4 shows the CRS‐311 front panel. The CRS‐311 is constructed as a 2RU‐high, rack‐
mounting chassis that can be freestanding if desired. Handles afford easy placement into and
removal from a rack.
Feature
Description
1
Vacuum Fluorescent Display (VFD)
2
6-button keypad
3
(3) Light-Emitting Diodes (LEDs)
4
(2) Light-Emitting Diodes (LEDs)
5
Rack Handles
1.3.3 Rear Panel
Figure 1‐5 shows the rear panel of a typical CRS‐311 operational configuration.
Feature
Description
1
CRS-241 AC Power Supply
2
CRS-230 System Controller
3
CRS-351 Overhead Module
Figure 1-4. CRS-311 Front Panel
Figure 1-5. CRS-311 Rear Panel Configuration Example
Function
Displays menus, prompts, and messages
Menu navigation
Switch status monitoring
Modem status monitoring
Installation into / removal from a rack
Feature
Description
4
CRS-281L IF Switch Module
5
CRS-336 TMI
6
CRS-306 RMI
1–7
Revision 7
MN/CRS311.IOM
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