RCS20 M:N Redundancy Switch

Comtech EF Data

RCS20 M:N Redundancy Switch

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  • Backup switching protection for up to nine (9) 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

SKU: CMT130 Tags: , ,
  • Description
  • Technical Specifications
  • Support Documents

Overview

The 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 DMD15/DMD2401/DMD20/DMD50/DM240/DD240 Satellite Modems.

The RCS20 is an intelligent microprocessor-controlled system, capable of controlling up to nine modems in a variety of configurations. The RCS20 is comprised of three separate units that make up the switching system; the Redundancy Control Unit (RCU20) shown above, the Digital Data Switch (DDS20), and the Intermediate Frequency Switch (IFS20), which are not shown.

Details

  • Backup switching protection for up to nine (9) 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

General
Configurations 1:9, 2:8, 1:4+1:4, 1:2+1:6, 1:3+1:5
Online Modulators 1 to 9
Online Demodulators 1 to 9
Backup Modulators 1 to 2
Backup Demodulators 1 to 2
Uplink Transponders 1 to 9
Downlink Transponders 1 to 9
Modes of Operation Manual, automatic revertive, automatic non-revertive and preemptive
Modulator Switch Time 250 ms maximum (hot-standby), 2 sec maximum (no hot-standby)
Demodulator Switch Time 250 ms maximum (hot-standby), 2 sec maximum + demod lock time (no hot-standby)
Modulator Switch Delay Time 0.0 sec to 299.9 sec, 0.1 sec intervals
Demodulator Switch Delay Time 0.0 sec to 299.9 sec, 0.1 sec intervals
IFS20 (70/140 MHz)
Uplink Transponders 1 to 9
Downlink Transponders 1 to 9
Return Loss 20 dB minimum
TX Insertion Loss 1 dB nominal
RX Insertion Loss 3.5 dB nominal
IF Connection Coaxial, 75 Ohm (50 Ohm optional)
IFS20 (L-Band)
Uplink Transponders Dual Ant./Dual Polarity
Downlink Transponders Dual Ant./Dual Polarity
Return Loss 14 dB minimum
TX Insertion Loss 3 dB nominal
RX Insertion Loss 3.5 dB nominal
IFL Connection SMA, 50 Ohm
Terrestrial Interfaces
DDS20 Universal I/O (UIO) Data Switch RS-449, V.35, RS-232 (DCE), G.703
T1 1.544 Mbps 100 Ohm balanced AMI or B8ZS line codes
E1 2.048 Mbps, 120 Ohm balanced, or 75 Ohm unbalanced HDB3 line code
T2 6.312 Mbps, 110 Ohm balanced, B6ZS line code or 75 Ohm unbalanced B8ZS
E2 8.448 Mbps, 75 Ohm BNC unbalanced HDB3 line code
DDS20-DVB/M2P Serial parallel interface data switch
M2P, RS-422, DB-25 connector*
DVB, RS-422, DB-25 connector*
DVB, differential LVDS, DB25 connector*
*Consult factory for availability
DDS20-ASI-M ASI modulator data switch
DDS20-ASI-D ASI modulator data switch
DDS20-HSSI HSSI data Switch
(Consult factory for availability)
DDS20-G.703 T3, E3, STS1 modulator data switch
DDS20-Ethernet Ethernet data switch
Options
Clock Distribution Modules
Physical, Power & Environmental
Prime Power 100 to 240 VAC, 50 to 60 Hz, 65 W
Operating Temperature 0 to 50°C, 95% humidity, non-condensing
Storage Temperature -20 to 70°C, 99% humidity, non-condensing
Compatible Modems
DMD2401 VSAT/SCPC Satellite Modem
DMD15 Universal IBS/IDR Satellite
DMD20 Universal Satellite Modem
DMD50 Universal Satellite Modem
DMD2050/2050E Satellite Modem Mil Std 188-165A
DM240 Digital Video Broadcast Modulator
DD240 Digital Video Broadcast
DD2401 Satellite Demodulator
(View our PDF Datasheet for more information)

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