CPI LRS2XXX-XXXXXXX 1:2 S-Band Redundant LNA System

CPI LRS2XXX-XXXXXXX 1:2 S-Band Redundant LNA System

The CPI LRS-1000 1:2 S-band redundant LNA system protects two receiver paths with one shared standby LNA. If either primary LNA fails, the controller automatically transfers the affected RF path to the standby unit, providing reliable and equipment-efficient redundancy for dual-polarization or two-channel S-band earth stations.

System Configuration: 1:2 redundancy
LNA Configuration: Two primary LNAs and one shared standby LNA
RF Paths: Two independent receiver or polarization paths
Frequency Range: 2100–2500 MHz
LNA Noise Temperature: 35 K
Standard System Noise Contribution: 37 K for Pol. 1; 37 K for Pol. 2; 63 K through standby, excluding LNA
System Noise with Input Couplers: 60 K for Pol. 1; 60 K for Pol. 2; 88 K through standby, excluding LNA
Gain: 57 dB min., 60 dB typ.
Gain Match Between LNAs: 2 dB max.
Gain Flatness: ±0.75 dB over the full band; ±0.30 dB per 10 MHz
Output P1dB: +8 dBm min., +10 dBm typ.
Output OIP3: +18 dBm min., +20 dBm typ.
Input VSWR: 1.80:1 typ., 1.90:1 max.
Output VSWR: 1.25:1 max.
RF Input Connectors: Type N female
RF Output Connectors: Type N female
Plate Assembly Power: 11–15 VDC; 12 VDC typ.; 10 W typ.
Automatic Switchover Time: 100 ms max.
Network Interface: 10/100Base-T Ethernet
Remote M&C: SNMP v1, v2c and v3; RS-232, RS-422, RS-485 and parallel I/O
Controller Power: 100–135 or 180–240 VAC, 47–63 Hz
Plate Operating Temperature: -40°C to +60°C
Compliance: CE certified, RoHS compliant and EAR99

Key Features:

• One shared standby LNA protects two primary LNAs

• Supports two receiver or polarization paths

• Automatic transfer of either failed path to the standby LNA

• 2100–2500 MHz S-band frequency coverage

• CPI LSH-2000 Series S-band low noise amplifiers

• Low 35 K LNA noise temperature

• High-quality dual coaxial RF switches

• Outdoor antenna-hub plate assembly

• Manual or automatic operation

• Manual RF-switch override

• Independent standby-LNA selection for either RF path

• LNA current and external-alarm monitoring

• User-selectable current tolerance window

• Dual redundant controller power supplies

• Front-panel RF-path, switch-position and system-status display

• Standard output coaxial isolators

• Optional -30 dB input couplers

• Optional -20 dB output couplers

• Optional terminated offline input and output

• Ethernet, serial and parallel remote control

• Audible fault alarm

• Optional remote control panel for operation up to 4,000 ft. away