CPI BRK-1100 1:1 Ku-Band Redundant LNB System

CPI BRK-1100 1:1 Ku-Band Redundant LNB System

The CPI BRK-1100 1:1 Ku-band redundant LNB system minimizes receiver downtime by automatically switching the RF path from the primary LNB to a dedicated standby LNB when a failure is detected. 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: 1:1 redundancy
LNB Configuration: One primary LNB and one standby LNB
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, 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 isolator
Input VSWR with Isolator: 1.25:1 typ., 1.30:1 max.
Input VSWR with Isolator and Tx-Reject Filter: 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 Connector: WR-75 waveguide flange
RF Output Connector: Type F female, 75 ohms, or Type N female, 50 ohms
Automatic Switchover Time: 100 ms max.
LNB Power Output: +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:

• Dedicated standby LNB protects one primary receiver path

• Automatic transfer to the standby LNB upon primary-unit failure

• 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

• 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 switch-position indicators

• Optional transmit-reject filter

• Optional waveguide input isolator

• Optional -40 dB input crossguide coupler

• 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