Summary Of Specifications - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Introduction
1.4

Summary of Specifications

Equipment Type
Manufacturer
Supported Comtech EF Data Modems
Operating Modes
Architecture
Switch Conditions
IF Switching / Splitting
BUC Power Switching
BUC 10 MHz Reference Switching
BUC FSK Comms Switching
LNB Power Switching
LNB 10 MHz Reference Switching
Tx-Rx Isolation
IF Impedance
IF Connectors
IF Frequency Range
L-Band 1:1 Redundancy Switch
Comtech EF Data, Tempe, Arizona
CDM-625A or CDM-625 Advanced Satellite Modem with/without
•
optional IP Packet Processor
H64/H32/H16/H8 Heights Remote Gateway
•
Advanced VSAT CDM-850 or CDM-840 Remote Router
•
CDM-760 Advanced High-Speed Trunking Modem
•
CDM-750 Advanced High-Speed Trunking Modem
•
CDM-570AL L-Band Satellite Modem with/without optional IP Packet
•
Processor
CDM-570L L-Band Satellite Modem with/without optional IP Module
•
CDM-710GL L-Band High-Speed Satellite Modem
•
CDM-710 L-Band Broadcast Satellite Modem
•
CDM-700 L-Band Satellite Modem
•
CDM-600L (CLM-9600L) with CRS-150 1:1 Data Switch
•
SDM-300L3 with SMS-301 1:1 Data Switch
•
Fully automatic under control of supporting 1:1 switch.
•
Manual under control of supporting 1:1 switch.
•
Full bridging architecture when supported by CRS-150, or SMS-301
•
data switching and control, with configuration synchronization.
Tx redundancy supports all BUC interface signals (RF, 10 MHz
•
reference, FSK communications, and power supply)
Rx IF signal fed to both Online and Backup units. Rx switching
•
supports all LNB interface signals (RF, 10 MHz reference, and power
supply.)
Tx/Rx switching follows state of supporting data switching via control input
from data switch.
Tx IF: Switched by RF relay (1.5 dB max loss, 40 dB min ON/OFF
•
isolation)
Rx IF: Passive power splitting (7 dB max loss)
•
Switched by power relay (60VDC max, 4A max)
Switched by relay (1 dB max loss, 70dB min ON/OFF isolation)
Switched by relay (70dB min ON/OFF isolation)
Switched by power relay (28 VDC max)
Switched by relay (1 dB max loss)
90dB min, 950-2250 MHz
Optimized for 50Ω (> 10 dB return loss on external IF ports)
50Ω Type N Female
950-2250 MHz
1–18
MN/CRS170A.IOM
Revision 14