CPI BRK-1200 1:2 Ku-Band Redundant LNB System

CPI BRK-1200 1:2 Ku-Band Redundant LNB System

The CPI BRK-1000 1:2 Ku-band redundant LNB system protects two independent receiver or polarization paths with one shared standby LNB. If either primary LNB fails, the controller automatically transfers the affected RF path to the standby unit. Supporting 10.95–12.75 GHz Ku-band reception, the system consists of an outdoor antenna-hub plate assembly, an indoor redundancy controller and an interconnecting control cable. Compatible Norsat Ku-band LNBs are selected and ordered separately.

System Configuration: 1:2 redundancy
LNB Configuration: Two primary LNBs and one shared standby LNB
RF Paths: Two independent receiver or polarization paths
Band A Input Frequency Range: 11.70–12.20 GHz
Band B Input Frequency Range: 12.25–12.75 GHz
Band C Input Frequency Range: 10.95–11.70 GHz
Band A Output Frequency Range: 950–1450 MHz
Band B Output Frequency Range: 950–1450 MHz
Band C Output Frequency Range: 950–1700 MHz
Band A Local Oscillator Frequency: 10.75 GHz typ.
Band B Local Oscillator Frequency: 11.30 GHz typ.
Band C Local Oscillator Frequency: 10.00 GHz typ.
External Reference: 10 MHz, -5 to +5 dBm
Standard System Noise Contribution: 10 K for Pol. 1; 14 K for Pol. 2; 19 K through standby, excluding LNB
Gain: 55 dB min., 60 dB typ. with standard LNB
Gain Flatness: ±0.5 dB per 27 MHz
Gain Stability: ±0.25 dB max. per day at constant temperature; -0.06 dB/°C
Frequency Stability: ±10 kHz from -40°C to +60°C
Output P1dB: +2 dBm min., +5 dBm typ.
Output OIP3: +12 dBm min., +15 dBm typ.
Input VSWR: 2.00:1 typ. without isolators
Input VSWR with Isolators: 1.25:1 typ., 1.30:1 max.
Input VSWR with Isolators and Tx-Reject Filters: 1.30:1 typ., 1.35:1 max.
Output VSWR: 1.80:1 typ., 2.00:1 max.
Maximum Input Power: 0 dBm without damage
RF Input Connectors: WR-75 waveguide flanges
RF Output Connectors: Type F female, 75 ohms, or Type N female, 50 ohms
Automatic Switchover Time: 100 ms max.
LNB Power Outputs: +14.3 to +15.0 VDC, 700 mA max.
Network Interface: 10/100Base-T Ethernet via RJ-45
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 LNB protects two primary LNBs

• Supports two independent receiver or polarization paths

• Automatic transfer of either failed path to the standby LNB

• Ku-band frequency coverage from 10.95 to 12.75 GHz

• Compatible with Norsat Ku-band PLL or externally referenced LNBs

• Outdoor antenna-hub plate assembly

• High-quality dual waveguide/coaxial RF switches

• Manual or automatic operating modes

• Manual RF-switch override

• Independent standby-LNB selection for either RF path

• LNB current monitoring, external-alarm monitoring or both

• User-selectable current tolerance window from ±5% to ±25%

• Dual redundant controller power supplies and AC inputs

• Front-panel LNB status, power-supply and RF-switch indicators

• Optional transmit-reject filters

• Optional waveguide input isolators

• Optional -40 dB input crossguide couplers

• Optional offline LNB input and output ports

• Ethernet, serial and parallel remote control

• Audible fault alarm

• Control cables available up to 500 ft.

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