Product Details
The ABB 3BSC950089R3, also cataloged as the TK801V012 ModuleBus Extension Cable, operates as a dedicated hardware component for extending the electrical backplane bus across separate DIN rails within ABB S800 I/O systems. Used in conjunction with TB805/TB845 and TB806/TB846 bus optical port / extension modules, the cable provides physical signal continuity to interconnect distributed I/O clusters on a single electrical bus node.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3BSC950089R3 (TK801V012) |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.265 kg |
| Dimensions | 1.2 m length |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | Passive bus interconnect (0 W) |
| Product Type | Extension Cables |
| System Platform | ABB S800 I/O |
| Cable Type | ModuleBus Extension Cable |
Backplane Bus Communication Velocity & I/O Density Scaling
The TK801V012 extension cable maintains standard backplane bus communication velocity across split DIN-rail configurations, permitting seamless I/O density scaling within a unified S800 I/O cluster. Internal shielding and verified impedance matching preserve high-frequency signal integrity between the master station module and downstream I/O bases, preventing packet dropouts or communication timing faults across the 1.2 m interface distance.
Frequently Asked Questions
Q: Which termination or bus interface modules are required to connect the TK801V012 cable?
A: The cable requires connection to TB805 or TB845 on the originating ModuleBus rail and TB806 or TB846 on the target extension rail.
Q: Does the TK801V012 cable support hot-swapping or live disconnection during operation?
A: Disconnecting the extension cable during operation breaks the electrical ModuleBus, causing immediate loss of communication to all downstream I/O modules; the cable must remain locked during rack operation.
Q: Does the cable require external power or driver hardware?
A: No, the assembly is a passive multi-conductor shielded cable that directly routes power rails and high-speed data lines between ModuleBus interface blocks.
Field Installation Guidelines
- De-energize the host I/O station backplane before mating or disconnecting the extension cable assembly.
- Route the cable along dedicated wire trays, avoiding tight bend radiuses below the manufacturer standard to prevent internal wire strain.
- Ensure both cable connectors are aligned correctly with the socket pins on the TB805/TB845 and TB806/TB846 interface blocks before pushing into place.
- Secure the integrated connector locking clips firmly to ensure continuous chassis earth shield grounding across the cable assembly.
- Keep the cable separate from high-voltage motor feeds and AC distribution wiring to avoid electromagnetic noise coupling onto the ModuleBus signal lines.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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