Description
Varian VJW2731A5 Channel Tuner Control Rackmount Satellite VJW-2731 1U
The Varian VJW2731A5 is a rackmount Channel Tuner Control unit designed for satellite ground station and satcom frequency management applications. It provides operator-controlled channel and frequency selection via a front-panel numeric keypad, with real-time status feedback through labeled indicators. The unit is housed in a 1U rackmount chassis and connects to associated satellite equipment through rear-panel DB25, multi-pin circular, and terminal block interfaces.
Specifications & What's Included
- Manufacturer: Varian
- Model / Type: VJW2731A5 (also referenced as VJW-2731)
- Form Factor: 1U Rackmount
- Country of Manufacture: Canada
- Front Panel: Numeric keypad (digits 0–9), CHAN button (blue), FREQ button (blue), CLR button (red), ENT button (black)
- Channel Display: Recessed front-panel display window labeled CHANNEL
- Status Indicators: PIN INH, UNLOCKED, TUNING, LOCKING, UNLOCKING, LOCKED
- Power Switch: Front-panel rocker power switch
- Fuse Alarm: Front-panel LED indicator
- Power Requirements: 115V / 230V AC
- Fuse Rating: 3A at 115V / 1.5A at 230V (fuse holder F1 on rear panel)
- Rear Connectors: DB25 female (J1), dual card-edge interface connectors on green PCB, multi-pin circular connector (J3)
- Terminal Block: TB1 with positions 1 through 6 (screw terminals, accessible via rear side panel)
- Certifications: UL/CSA label visible on chassis
- Included: Unit only
Applications
The Varian VJW2731A5 Channel Tuner Control is used in satellite communications ground station equipment racks where an operator or control system needs to select and lock onto specific satellite transponder channels or downlink frequencies. Varian produced satcom and scientific electronics primarily through the 1980s and 1990s, and this style of rackmount channel tuner was a standard interface component in earth station uplink/downlink systems, teleport facilities, and broadcast satellite head-end installations. The unit's keypad-driven CHAN and FREQ entry with LOCKED/UNLOCKED/TUNING status readout is characteristic of analog and early digital satellite tuner controllers from that era, used to drive connected LNBs, frequency synthesizers, or tuner assemblies. These units are sought after for maintaining legacy satellite infrastructure and for compatible Varian system replacements.
This Varian VJW2731A5 Channel Tuner Control has been inspected and is in good condition. The front panel shows normal light wear consistent with prior rack use, with all keypad buttons, the channel display window, status labels, and the power switch appearing intact. The rear panel PCB, DB25 connector (J1), multi-pin circular connector (J3), and TB1 terminal block all appear undamaged. The model label on the unit clearly reads type VJW2731A5, made in Canada. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Varian |
Model: |
VJW2731A5 |
MPN: |
VJW2731A5 |
Secondary Model: |
VJW-2731 |
Type: |
Channel Tuner Control |
SKU: |
31495 |
Form Factor: |
Rack Mount, 1U |
Power Requirements: |
115V / 230V AC (fuse rated 3A/115V, 1.5A/230V) |
Fuse Rating: |
3A/115V, 1.5A/230V |
Interface / Connectors: |
DB25 (J1), Multi-pin circular (J3), TB1 terminal block |
Terminal Block: |
TB1, positions 1–6 |
Front Panel Controls: |
Numeric keypad (0–9), CHAN, FREQ, CLR, ENT buttons |
Front Panel Indicators: |
Fuse Alarm LED, Channel display window, status labels |
Status Indicators: |
PIN INH, UNLOCKED, TUNING, LOCKING, UNLOCKING, LOCKED |
Country/Region of Manufacture: |
Canada |
Application: |
Satellite channel tuning and frequency control |
Condition: |
Used – Inspected and in Good Condition |
Seller Notes: |
Unit only; inspected and in good condition. |
Condition Notes: |
Varian VJW2731A5 Channel Tuner Control. Inspected and in good condition. Front keypad, display window, connectors, and terminal block appear intact and undamaged. Normal light wear from prior rack use. |
