Description
LNR Communications Tridundant LNA Local Channel Select Monitor 506004788
Rackmount redundancy switching and monitoring unit for satellite ground station low noise amplifier (LNA) systems. Manages selection and status across three LNA channels with dual polarization support.
Specifications & What's Included
- 2U rackmount form factor
- Three LNA channels with independent On Line / Stand By modes
- Dual polarization channels (Horizontal, Vertical)
- Local or remote control; manual or auto operation
- Three red alarm indicator lamps for channel status
- Power: 117V AC
- Connectors: Circular mil-spec multi-pin (LNA inputs, power/monitor); D-sub 25-pin (remote); D-sub 15-pin (polarization controls)
- Unit only; no cables or accessories included
Applications
This unit type serves as a redundancy manager in satellite telecom ground stations, allowing operators to switch between multiple LNA chains for uplink or downlink signal paths. Commonly integrated into C-band, Ku-band, or Ka-band earth station architectures. The tridundant configuration ensures operational continuity by enabling automatic or manual failover between amplifier channels.
Condition: Used
This LNR Communications Tridundant Low Noise Amplifier Local Channel Select and Monitor (Assy 506004788) has been inspected and is in good used condition. The front panel is clean with no significant damage; the three red Summary Alarm indicators, polarization select buttons, On Line/Stand By switches, and LNA Mode Select controls all appear intact. The rear connectors — including the circular multi-pin LNA inputs (J1–J3), D-sub remote input (J4), polarization switch control ports (J5–J6), and PWR/MON input (J8) — show normal wear consistent with prior service use. The chassis exterior shows typical light scuffing and wear for equipment of this type. The top cover has been removed for internal photography; the internal wiring and components appear complete and undisturbed. Please view our photo set and contact us if you have any questions.
This LNR Communications Tridundant Low Noise Amplifier Local Channel Select and Monitor (Assy 506004788) has been inspected and is in good used condition. The front panel is clean with no significant damage; the three red Summary Alarm indicators, polarization select buttons, On Line/Stand By switches, and LNA Mode Select controls all appear intact. The rear connectors — including the circular multi-pin LNA inputs (J1–J3), D-sub remote input (J4), polarization switch control ports (J5–J6), and PWR/MON input (J8) — show normal wear consistent with prior service use. The chassis exterior shows typical light scuffing and wear for equipment of this type. The top cover has been removed for internal photography; the internal wiring and components appear complete and undisturbed. Please view our photo set and contact us if you have any questions.
Warranty Information
We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information
Brand: |
LNR Communications |
Model: |
Tridundant LNA Local Channel Select and Monitor |
MPN: |
506004788 |
Code Ident: |
51029 |
Type: |
Tridundant Low Noise Amplifier Switch & Monitor |
SKU: |
31429 |
Seller Notes: |
Unit only; no additional cables or accessories observed. |
Country/Region of Manufacture: |
United States |
Form Factor: |
Rackmount, 2U |
Power Requirements: |
117V AC (danger label visible internally) |
Number of LNA Channels: |
3 (LNA 1, LNA 2, LNA 3) |
Polarization Channels: |
2 (Polarization 1 – HORZ, Polarization 2 – VERT) |
LNA Select Modes: |
On Line / Stand By per channel |
Control Mode: |
Local or Remote; Manual or Auto |
Summary Alarm Indicators: |
3 red indicator lamps (LNA 1, LNA 2, LNA 3) |
Rear Connectors: |
J1 Channel 1 LNA Input, J2 Channel 2 LNA Input, J3 Channel 3 LNA Input |
Rear Connectors 2: |
J4 Remote Input (D-sub), J5 POL 1 Switch Control, J6 POL 2 Switch Control |
Rear Connectors 3: |
J7 Noise Source Output, J8 PWR/MON Input (circular multi-pin) |
Connector Types: |
Circular mil-spec multi-pin (J1–J3, J8), D-sub 25-pin (J4), D-sub 15-pin (J5, J6) |
Application: |
Satellite ground station LNA redundancy switching |
Manufacturer Location: |
Hauppauge, New York |
Condition Notes: |
LNR Communications Tridundant LNA Local Channel Select Monitor (506004788) inspected and in good used condition. Front panel controls intact; rear connectors show normal service wear. Chassis has typical light scuffing. |
