Quintech Electronics RSP 2150 L-Band Redundancy Switch w/ Hot-Swappable DC Power Supplies
950-2150 MHz, 2 Inputs (Primary, Secondary) / 1 Output (per switch), 75 Ohm
RSP 2150 L-Band Redundancy Switch w/ Hot-Swappable DC Power Supplies
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The RSP21502FACB000 RF Sensing Switch provides two (2x1) L-Band sensing switches for LNB redundancy of both horizontal and vertical polarities on a TVRO satellite. In addition, it provides 24 VDC, enough to power four LNBs. Each L-Band sensing switch contains a single (2x1) RF detector switch which detects the presence of a 950-2150 MHz LNB satellite signal on the primary input and switches to backup (secondary) on loss of primary. The sensing switch utilizes a DPDT high frequency relay that terminates the off path with 75 Ω.

The primary RF input is filtered, amplified, and detected to operate the relays. When the input level is above the preset threshold, which is adjustable using the rear panel mounted pushbuttons, the relays are de-energized and will pass RF even under a no power condition. When the signal falls below the preset threshold, the relay is energized and the secondary signal path is selected. A front panel slide switch has been included for each sensing switch to allow manual override to the secondary input. The rear panel has been equipped with 15-pin connectors that provide an interface for contact closure alarms and remote override via contact closure.

The LNB power feature provides two separately fused power supply modules, each capable of handling 2.5 amps of
current consumption. Each power supply is diode coupled to provide instantaneous redundancy should one of them fail.
In addition, each power supply is in its own drawer to provide “hot-swap” capability for zero downtime.
AC and DC power status is indicated via the front panel mounted LEDs.
Note: Under a no power condition, the unit will default to the primary position
Features & Benefits
The RSP 2150 LNB Redundancy Switch detects loss in signal level from LNB’s & switches to the secondary / back-up if the primary signal level falls below set threshold.
Hot swappable power supplies to redundant power LNB’s
LNB power feature provides two separately fused power supply modules, each capable of handling 2.5 amps.
AC and DC power status is indicated via the front panel mounted LEDs
Typical Configuration Diagram

|
Frequency: |
950-2150 MHz |
|
Impedance:RF Detection Level: Maximum Input Level:Maximum Input Level (No Damage):Insertion Loss: Frequency Response: |
75 Ω -60 dBm to -20 dBm, adjustable +10 dBm +20 dBm 2.5 dB + 1.25 dB +1.0 dB ! +24 VDC PRESENT ON AT ALL TIMES |
|
Return Loss: |
12 dB |
|
Isolation: |
40 dB |
|
Inputs/Outputs: |
Two (2x1) |
|
Manual Override: |
Front panel mounted slide switch(es) |
|
Threshold Adjust: |
Rear panel mounted up/down pushbuttons |
|
Power Requirements: |
100-240 V~, 60/50 Hz |
|
Power Consumption: |
80 W |
|
LNB Power: |
24 V (present on primary and secondary input ports at all times) |
|
RF Connectors: |
Type F, 75 Ω |
|
Mechanical: |
2 RU (3.50" H x 19" W x 14" D) |
|
Weight: |
7.2 lbs. gross (boxed), 4.6 lbs. net |
L-Band from 950 to 2150 MHz, Provides two (2x1) RF detector switches in a single RU enclosure