Comtech EF Data CRS-280L - Manual (Page 23)

CRS-280L L-Band IF Switch for 1:N Redundancy Revision 1
Introduction MN/CRS280L.IOM
1–5
1.3 Summary of Specifications
Equipment Type L-Band IF Switch for 1:N Redundancy
Comtech EF Data Modems Supported
• SDM-2020D (L-Band) (when used with CRS-400) (legacy products)
• SDM-300L3 (when used with SMS-7000) (legacy products)
• CDM-570L (when used with CRS-300 or CRS-500)
• CDM-600L (when used with CRS-300)
• CDM-9600L (when used with CRS-300)
• CDM-625 (when used with CRS-300 or CRS-500)
• SLM-5650A (when used with CRS-300 or CRS-500)
Tx/Rx Operating Frequency 950 - 1950 MHz (L-Band)
IF Impedance 50 Ω
TX Return Loss 15 dB at 50 Ω
TX to TX Channel Isolation >70 dB
RX to RX Channel Isolation >70 dB
TX to RX Channel Isolation >90 dB
Tx IF Loss / Flatness
TX (in) to associated Uplink (out) < 0.8 dB / 0.5 dB over operating frequency
BU (in) to any Uplink (out) < 2.5 dB / 1.0 dB over operating frequency
Rx IF Loss / Flatness
DL (in) to associated RX (out) < 4.0 dB / 0.5 dB over operating frequency
Any DL (in) to BU RX (out) < 5.5 dB / 1.0 dB over operating frequency
Max. # of Downlinks 10
Tx/Rx IF Connectors 50 Ω Type ‘N’ female
Control Interface
• 25-pin sub-D female, compatible with CRS-300 controller
• 15-pin sub-D female, compatible with SMS-7000
Input Power Redundant 25 W, AC, Universal Input Switch Mode Power Supplies
Input voltage 90 - 264 VAC
Input frequency 47 - 440 Hz
Input current
0.75 A rms max. @ 90 VAC
0.35 A rms @ 230 VAC
Power Loss Failsafe All uplinks/downlinks revert to associated L-Band inputs/outputs
Environmental
Operating Temperature 32 ° to +122° F (0° to +50° C)
Storage Temperature -58 ° to +212° F (-50° to +100° C)
Humidity 95% at +122 ° F (+50° C), Non-condensing
Dimensions
(Excluding connectors) 4RU (7 inches, 177.8 mm) high X 19 inches (482.5 mm)
wide X14 inches (356 mm) deep
Weight < 25 lbs (<11.35 kg)
EMC and Safety
• ‘CE’ as follows:
o
EN 55022-1997 Class A (Emissions)
o
EN-55024-1998 (EMC/Immunity)
o
EN 50082-1 (Immunity)
o
EN 60950 (Safety)
• FCC Part 15 Class A