Chapter 5. Summary Of Specifications - Comtech EF Data CRS-180 Manual

SUMMARY OF SPECIFICATIONS
CRS-180 IF 1:1 Redundancy Switch
Equipment Type
Manufacturer
Modems
Supported
Operating Modes
Architecture
Switch Conditions
IF Switching/
Splitting
Tx-Rx Isolation
IF Impedance
IF Connectors
IF Frequency
Range
Chapter 5. SUMMARY OF
IF 1:1 Redundancy Switch
Comtech EF Data, Tempe, Arizona
Comtech EF Data CDM-570
Fully Automatic under control of supporting 1:1 switch.
Manual under control of supporting 1:1 switch.
Full bridging architecture with configuration synchronization.
Tx switching guarantees the offline modem is muted at least 60 dB down.
Rx IF signal fed to both Online and Standby units.
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, 60 dB min ON/OFF isolation)
Rx IF: Passive power splitting (4dB max loss)
70 dB min, 50 - 180 MHz
Optimized for 50Ω.
75Ω supported with the use of external RF transformers (included).
50Ω BNC Female
50 - 180 MHz
5–17
SPECIFICATIONS
MN/CRS180.IOM
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