Description
Bently Nevada 3500/94 VGA Display Module Cable Assembly
Configured for signal transmission and rack-to-display interfacing in the 3500 Machinery Protection System, the Bently Nevada 3500/94 161264-01 (3500/94 VGA Display Module Cable) provides direct physical/electrical execution of video output routing, communication linking, and shielded signal continuity between rack-resident display electronics and external operator visualization devices.
Hardware Specifications
| Parameter |
Specification |
| Model |
3500/94 161264-01 |
| Brand |
Bently Nevada |
| Weight |
0.3 kg |
| Operating Temp |
-20 deg C to +65 deg C |
| Power Consumption |
0 W (passive cable assembly) |
| Cable Type |
VGA shielded industrial cable |
| Length Options |
3 m / 5 m / 10 m |
| Connectors |
VGA 15-pin + rack interface connector |
Eddy Current Signal Integrity and EMI Suppression Path
The cable assembly maintains controlled impedance pathways for VGA video transmission between rack display electronics and external monitoring terminals. Shielding layers are implemented as continuous EMI/RFI barriers to reduce electromagnetic coupling from adjacent backplane power conductors and high-frequency monitoring channels.
In environments with high-density vibration monitoring modules, the cable shielding geometry reduces induced noise currents that may otherwise propagate into display synchronization lines. This maintains stable raster timing and prevents signal distortion under variable electromagnetic field conditions generated by rotating machinery instrumentation systems.
Frequently Asked Questions (FAQ)
Q: Does the cable carry power for the 3500/94 module?
A: No. The cable is used for signal transmission only. Power distribution is handled internally via the 3500 backplane architecture.
Q: Can non-shielded VGA cables be substituted?
A: No. Non-shielded cables introduce susceptibility to EMI coupling and may result in degraded display synchronization and signal instability.
Q: Does cable length affect signal integrity in all configurations?
A: Yes. Increasing cable length increases attenuation and susceptibility to external electromagnetic interference, especially in high-noise cabinet environments.
Field Installation Guidelines
-
Route VGA cable separately from high-current backplane and power distribution wiring
-
Maintain minimum bend radius to avoid conductor deformation and impedance variation
-
Ensure continuous shield termination at both rack and display end grounding points
-
Avoid cable routing near high-frequency switching modules or relay outputs
-
Secure cable mechanically to prevent vibration-induced connector loosening
-
Verify connector seating alignment before energizing display interface system
