Product Core Brief

• Model:
• Brand: GE Fanuc / Emerson Automation
• Series: Series 90-30 PLC Accessories
• Core Function: WYE (Y-type) shielded I/O bus expansion cable, used to interconnect Series90-30 main rack and remote expansion baseplates, supports daisy-chain multi-rack topology for distributed I/O scanning.
• Product Type: Pre-assembled DB25 I/O Expansion Cable
• Key Specs: Fixed length 25 ft (8 m) | One end single DB25 male; opposite end dual DB25 (1 male + 1 female) | 100% continuous shielded cable | Supports up to 8 racks total system Note: Discontinued factory cable assembly; new original stock limited, surplus & refurbished available. Not terminated cable

Key Technical Specifications

• Cable Length: 25 feet / 8 meters
• Connector Configuration One end: Single 25-pin D-Sub Male Far end: Dual 25-pin D-Sub (1 Male, 1 Female) → Wye daisy-chain design
• Shielding: Continuous overall shield, EMI noise suppression
• Conductor: 28 AWG stranded copper
• Voltage Rating: Max 30 VDC
• Maximum System Rule: Up to 7 expansion racks per CPU; total cable length from CPU to farthest rack cannot exceed 15 m (50 ft)
• Operating Temperature: 0°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Weight: Approx. 0.91 kg
• Compatible Baseplates IC693CHS391 (5-slot), IC693CHS392 (10-slot), IC693CPU313 integrated 5-slot baseplate
• Supported CPU: All Series90-30 CPUs (CPU313 / CPU351 / CPU364 / CPU374)
• Cable Family Comparison
  • IC693CBL312: 0.5 ft short jumper
  • IC693CBL300: 3 ft (1 m) Wye cable
  • IC693CBL301: 6 ft (2 m) Wye cable
  • : 25 ft (8 m) Wye cable
  • IC693CBL302 / IC693CBL314: 50 ft (15 m) single-ended terminated cable (NOT WYE)

Product Introduction

is factory pre-made Y-shaped expansion cable for Series 90-30 I/O expansion bus. The dual-head female+male terminal allows easy daisy-chaining: one expansion rack connects to incoming cable, and the female port feeds the next remote rack in sequence.

Critical Topology Notes

1. Can cascade multiple racks.
2. IC693CBL302 / IC693CBL314 = Single male terminated cable Used only for the last rack in the chain, must not be used for further daisy-chaining.

Important Distance Restriction Even if using multiple cables, the cumulative distance from CPU baseplate to the furthest expansion rack must not exceed 15 meters (50 ft) to avoid communication errors and I/O scan failures.

Migration Note This cable is only for native Series90-30 expansion racks. RX3i + IC695LRE001 serial expansion racks (IC694CHS series) use different 25pin expansion cable, not interchangeable.

QA & Testing SOP (Transparency Building)

1. Incoming Inspection: Verify model marking. Inspect all three DB25 connectors for bent pins, cracked housings, intact strain relief; check jacket abrasion.
2. Continuity Testing: Perform full pin-to-pin continuity test on all 25 signal lines; confirm no short circuits between pins or shield.
3. Live System Test: Install between validated Series90-30 main rack and expansion baseplate. Power up PLC, verify all remote I/O modules are detected in Proficy Machine Edition without bus faults.
4. Documentation: Photograph all connectors before packaging.
5. Final QC & Packaging: Anti-static bag packing. Attach QC tag confirming continuity and bus communication test.

Installation Pitfalls & Guide

❗ Total Length Limit: CPU to farthest rack ≤15m (50ft). Multiple cascaded CBL313 cannot exceed this overall distance. ❗ Daisy-Chain Sequence: Last rack in chain must use terminated cable IC693CBL302/314. Do NOT end chain with . ❗ Wiring Separation: Route expansion cable separately from high-current AC power cables to reduce EMI interference. ❗ Shield Ground Practice: Ground cable shield at one end only; avoid dual-point grounding which creates ground loops. ❗ Connector Protection: Avoid over-tightening DB25 screws; bent pins cause intermittent bus dropouts. ❗ Not for Genius Bus: This is I/O expansion bus cable, cannot be used for Genius field bus communication.

Replacement Guide

1. Pre-install: Lockout-tagout all rack power. Photograph existing cable routing and connector arrangement.
2. Removal: Unplug connectors from baseplate expansion ports, remove old cable.
3. Install: Route new , connect male end to upstream baseplate; dual-head end to downstream expansion rack and continue daisy-chain.
4. Power-on Test: Restore rack power; confirm PLC detects all local and remote I/O modules, no expansion bus fault alarms.

FAQ

Q: What is the difference between and IC693CBL314? A:

• : 25ft Wye dual-head cable, supports daisy-chain cascading
• IC693CBL314: 50ft single male terminated cable, only used for final rack in chain, cannot extend further racks

Q: Can I use for RX3i IC694 serial expansion racks? A: No. Pinout and bus signal definition differ; IC694CHS racks require dedicated expansion cables.

Q: What happens if total cable length exceeds 15 meters? A: Increased communication errors, intermittent loss of remote I/O, SYS FLT faults on CPU.

Q: Can I connect multiple expansion racks in parallel (star topology)? A: No. Series90-30 I/O expansion bus only supports daisy-chain topology.

Q: Is this cable suitable for Genius bus? A: No. Genius bus uses separate wiring and cables.