Overview
Configured for CEX-bus termination in Advant-800xA controller subsystems, the ABB TK851V010 (TK851 CEX-Bus Terminator) provides direct physical/electrical execution. This component provides the terminal network impedance matching necessary when deploying a TK850V007 CEX-bus extension cable, preventing signal reflection and maintaining communication stability across the extended communication interface.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | TK851V010 |
| Brand | ABB |
| Origin | United States |
| Weight | 0.2 kg |
| Dimensions | 13 mm x 6 mm x 700 mm |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | Passive (0 mA) |
| Cable Length | 0.7 m |
| Connector A Type | DB-25 Male |
| Connector B Type | DB-25 Female |
| Associated Cable | TK850V007 |
| Tariff Code | 8544429000 |
Backplane Bus Communication Velocity
The termination circuitry interfaces with the communication bus to ensure deterministic transmission protocols are maintained without introducing signal attenuation. Proper insertion of the terminator ensures that the backplane bus communication velocity remains stable across extended physical distances, eliminating data frame corruption during high-density I/O scaling operations.
Frequently Asked Questions
Q: Does the TK851V010 support hot-swapping while the CEX-bus is active?
A: No. Disconnecting or connecting the terminator during active module communication alters the bus impedance, which induces transmission faults and potential shutdown of the communication channel.
Q: What is the current draw of this component from the controller backplane?
A: The component utilizes a passive resistive network for line termination and exerts zero electrical load on the backplane power supply.
Field Installation Guidelines
- Verify complete physical isolation and power-down of the host controller before attaching the component.
- Secure the DB-25 connector interfaces fully using the integrated mechanical retention screws to avoid intermittent continuity.
- Route the associated extension cabling through dedicated low-voltage wireways to minimize electromagnetic cross-talk from adjacent high-voltage lines.
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