Component Snapshot At-a-Glance

• Model: TK803V018, full factory part number 3BSC950130R1
• Alt. P/N: TK803 series other length variants (V010/V020 etc.), different fixed lengths cannot substitute V018
• Product Series: ABB S100 I/O, Advant OCS, Advant Controller 450 (PM511V16 CPU) legacy DCS platform
• Hardware Type: Factory pre-terminated shielded serial cable assembly, one end 14-pin HD Conplug rack plug, opposite end 9-pin female D-Sub connector
• Key Feature: 1.9m fixed length double full shielding, factory crimped locking connectors, dedicated for MB300 / VIP serial communication links between S100 communication cards and HMI/historian stations
• Primary Field Use: Connect rack-mounted CS513 (MB300) or CI546 (VIP) communication modules to control room operator consoles, data historian servers and remote serial host equipment

Hard-Numbers: Technical Specifications

• Protocol Support: ABB proprietary MB300 MasterBus 300, VIP serial protocol, RS485 differential serial physical layer
• Port Pinout: One side 14-position HD Conplug male (locks into S100 communication card front port); other side DB9 female D-Sub for standard serial host wiring
• Cable Length: Fixed factory length 1.9 meters
• Cable Structure: Twisted pair differential serial wire, aluminum foil inner shield + copper braided outer double shielding
• Outer Diameter: 5 mm, light gray industrial PVC outer jacket
• Operating Temperature: -25°C to +70°C cabinet operational; -40°C to +85°C storage, non-condensing 5–95% RH
• EMC Rating: Meets IEC 61000-6-2 industrial heavy interference standard, suppresses VFD motor switching crosstalk
• Connector Mechanical: Locking screw D-Sub + snap-in HD Conplug, mating cycle ≥1000 insertions, anti-vibration loose prevention
• Net Weight: 0.155 kg
• Certifications: CE, UL/cUL industrial control wiring compliance, IP20 cabinet wiring rated

The Real-World Problem It Solves

Field fabrication of custom serial cables uses unshielded or single-shielded wire, lacking matched differential impedance; long trunk runs generate signal distortion, causing frozen HMI screens, lost trend samples and intermittent bus token faults on MB300 networks.Hand-crimped DIY connectors suffer loose pin contact from cabinet vibration; intermittent serial connection triggers random communication fault alarms that cannot be reproduced during static bench testing.Sourcing separate raw cable and two connector kits adds assembly labor, wiring error risk and inconsistent shielding grounding; factory TK803V018 pre-terminated cable eliminates on-site wiring work and guarantees uniform EMC performance.Where you’ll typically find it:

• Combined cycle power plant RF522 master turbine racks fitted with CS513 MB300 communication cards linking unit operator HMI consoles
• Refinery central Advant OCS DCS chassis using CI546 VIP modules to connect plant historian and remote control room workstations
• Pulp mill recovery boiler master control racks transmitting web speed, safety interlock and liquor flow data to pulp line operator stations via MB300 serial busThis factory double-shielded prefabricated serial cable delivers consistent differential signal integrity, eliminates on-site wiring mistakes, and withstands high EMI cabinet environments to stabilize continuous /VIP host communication.

Hardware Architecture & Under-the-Hood Logic

This is passive wiring assembly with no active electronic components; only provides impedance-matched differential serial transmission path between S100 rack communication cards and external host equipment.

1. Dual-layer shielding (inner foil + outer braid) fully wraps all twisted differential pairs to block common-mode noise from adjacent VFD, power and analog signal cables.
2. Factory calibrated twisted pair geometry maintains fixed characteristic impedance required for 19.2 kbps /VIP serial timing, preventing signal reflection at connector junctions.
3. Locking screw D-Sub and snap HD Conplug connectors eliminate vibration-induced pin lift in high-vibration turbine and pulp mill cabinet environments.
4. Unified single-point shielding grounding design pre-configured at the rack card end to avoid dual-ground loop currents that corrupt differential serial data frames.
5. Uniform 1.9m fixed length eliminates impedance mismatch issues from spliced or uneven custom cable runs during commissioning.

Field Service Pitfalls: What Rookies Get Wrong

Replacing TK803V018 With Hand-Made Unshielded Serial Cables

Maintenance staff build custom serial wiring with standard office RS232 cable without double shielding. Unsuppressed EMI distorts token frames, triggering daily HMI data dropout alarms during peak production shifts.

• Field Rule: Only deploy factory TK803V018 prefabricated cable for /VIP host links; generic unshielded serial wire cannot be used as a permanent replacement.

Mixing Different Length TK803 Variants On The Same Bus Segment

Technicians deploy TK803V010 (1m) and TK803V018 (1.9m) cables on the same multi-node bus. Uneven cable impedance creates signal reflection offsets, causing inconsistent screen refresh speeds across operator consoles.

• Quick Fix: Standardize all bus trunk segments with identical TK803 length variants for each Advant OCS control system.

Disabling Cable Shield Grounding At The Rack Card End

Field crews disconnect the shield drain wire at the HD Conplug connector to test for ground loop faults. Loss of shielding reference amplifies cabinet EMI noise, leading to permanent serial communication instability.

• Field Rule: Maintain factory shield grounding at the rack communication card side; leave the remote D-Sub host end shield floating to eliminate cross-cabinet ground loops.

Commercial Availability & Pricing Note

Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.