Comtech EF Data RCS20 - Manual (Page 15)

RCS20 M:N Redundancy Switch Revision 15
Introduction MN-RCS20 and CD-RCS20
1–1
Chapter 1. Introduction
1.1 Overview
The Radyne RCS20 M:N Redundancy Switch provides backup switching/protection for up to nine pairs of
satellite modem channels (modulators/demodulators). The RCS20 is a companion product to the Radyne
DD240, DM240, DMD15, DMD20, DMD2401, and DMD50 units. The RCS20 may be referred to in this
manual as the RCS20, “the switch”, or “the unit”.
The RCS20 can be operated automatically, in which case an automatic backup of a failed online modem
occurs after a preprogrammed delay. The switch may also be operated manually, allowing the operator to
manually switch to a backup modem.
1.2 Features
• Backup Switching Protection for up to Nine Satellite Modems (1 for 9 Protection)
• Flexible Backup Configuration, 1:9, 2:8, 2 x (1:4), etc.
• Large Display With Easy-to-Use Menu Structure
• Automatic or Manual Modes of Operation
• Flexible Automatic Configuration Mode
• Independent Modulator and Demodulator Switching
• Two Fully-Redundant Power Supplies
• Passive Relay Switching for Terrestrial and IF Signals
1.3 RCS20 Switching System Components
The RCS20 is comprised of three separate units that make up the switching system:
• The Redundancy Control Unit (RCU20)
• The Digital Data Switch (DDS20)
• The Intermediate Frequency Switch (IFS20)