Overview
Configured for optical ModuleBus data transmission in distributed S800 I/O architectures, the ABB TK811V015 3BSC950107R1 (3BSC950107R1 Plastic Optical Fiber Cable) provides direct physical-layer connectivity between CI85x/CI86x communication interfaces and remote I/O stations.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | TK811V015 |
| Brand | ABB |
| Origin | Sweden |
| Article Number | 3BSC950107R1 |
| Weight | 0.3 kg |
| Dimensions | 254 x 76 x 254 mm |
| Cable Length | 1.5 m |
| Operating Temp | -20 deg C to +70 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Data Rate | Up to 10 Mbps |
| Wavelength | 650 nm (Visible Red Light) |
| Attenuation | <= 3.5 dB/km (Max) |
| Bandwidth | >= 5 MHz/km |
| Numerical Aperture (NA) | 0.50 +/- 0.02 |
| Polarity | Keyed Cross-over (Tx to Rx) |
| Jacket Material | Orange PVC (UV-resistant, Flame-retardant) |
| Bend Radius | 15 mm (Static) / >= 30 mm (Dynamic) |
| Tensile Load | <= 70 N |
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The TK811V015 facilitates deterministic data exchange across the S800 I/O backplane bus without introducing protocol conversion latencies. Compatibility is strictly governed by firmware flash revisions on the CI85x and CI86x interface modules; mismatched firmware versions may result in link initialization failure or reduced data throughput. The plastic optical fiber medium supports full-duplex transmission while maintaining electrical isolation between racks, preventing ground loop currents from propagating through the control network.
Frequently Asked Questions
Q: Is the TK811V015 cable hot-swappable during system operation?
A: No. Optical ModuleBus connections must be configured offline. Inserting or removing the cable while the system is powered may cause transient data loss or require a manual restart of the communication interface module to re-establish the link.
Q: What are the mechanical constraints regarding bend radius during installation?
A: The minimum static bend radius is 15 mm. Dynamic applications or repeated flexing require a bend radius of at least 30 mm to prevent micro-cracking in the fiber core and subsequent signal attenuation.
Q: Can this cable be used for connections outside of the S800 I/O system?
A: No. The TK811V015 is specifically keyed and scaled for the S800 I/O ModuleBus architecture. Using it with non-compatible transceivers may result in incorrect polarity alignment and signal transmission failure.
Field Installation Guidelines
Install the TK811V015 ensuring the keyed connector aligns with the Tx/Rx orientation of the mating ports. Do not exceed the maximum tensile load of 70 N during routing. Maintain separation from high-voltage power cables to mitigate electromagnetic interference. Verify the orange PVC jacket remains intact and free from abrasion points. For rack-to-rack installations, secure excess cable length using non-metallic ties to avoid stress on the connector housing.
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