1. Product Summary

2. Electrical & Interface Parameters

• Dual-end fixed molded connectors: one end proprietary SUN SCSI male plug matching WEStation onboard mainboard SCSI port; opposite end customized 25PIN serial plug compatible with PCB terminal of all SUNMD/SUNID protocol trackball in 3A98826 series.

• Double-layer shielding structure: inner twisted-pair signal wire wrapped with aluminum foil + outer braided copper shielding, outstanding anti-EMI/RFI interference against cabinet power module, relay and field analog signal noise in central control room long-distance wiring scenario.

• Electrical rating: operating signal voltage DC5V, impedance precisely matched for Westinghouse dedicated SUN serial-SCSI hybrid bus; withstand AC500V insulation voltage test, fully compliant with industrial low-speed signal transmission specification.

• Core length differentiation of 3A98833 family:

  • 3A98833H01: Short standard length (internal wiring inside single integrated console cabinet)

  • 3A98833H03: Medium length (nearby separated desk wiring)

  • 3A98833H12: Extra-long length (cross adjacent cabinet long-distance routing)

  • 3A98833H23: Ultra-long customized length (remote separated console across multi-cabinet layout)

3. Mechanical & Environmental Specifications

• Outer sheath: Industrial black flexible anti-aging PVC jacket, oil-resistant, wear-proof, suitable for continuous 24/7 cabinet internal long-term operation.

• Both terminals adopt integrated injection molding with built-in strain relief design, effectively prevent inner core fracture from frequent plug/unplug during field overhaul work.

• Working ambient range: Operating temperature 0℃ ~ +55℃; storage temperature -40℃ ~ +85℃; applicable relative humidity 5%~95% RH non-condensing, meets CE industrial wiring component criteria.

4. Main Application

1. Exclusive transmission cable to deliver trackball cursor coordinate and left/right button trigger signals between workstation main control board and embedded panel trackball, realizing HMI screen cursor control for DCS equipment parameter selection, pump/valve status checking on WDPF system.

2. Cooperates with original WEStation membrane keyboard to complete alarm reset, process picture switching, DCS logic configuration download and parameter modification in power plant central control room.

3. Essential spare component for WEStation workstation upgrade, trackball retrofit and fault troubleshooting of aging Westinghouse WDPF distributed control system.

5. Supply & Global Shipment

• Available stock: Pre-inspected remanufactured cables & tested used original spares with quality warranty; brand new factory-original stock is extremely scarce worldwide.

• Standard delivery lead time: 2~4 working weeks; expedited urgent shipment available for emergency on-site maintenance orders.

• Global logistics: Worldwide delivery via DHL/UPS/FedEx; professional repair service is supported for damaged faulty 3A98833H12 returned units.