GE IC693CBL300 1‑Meter I/O Bus Expansion Wye‑Type Cable

Description

Basic Hardware Information

‑ Cable length: 1 m (3 ft) ‑ Connector configuration: One end: single 25‑pin D‑Sub male; opposite Y‑split end: 25‑pin D‑Sub male + 25‑pin D‑Sub female ‑ Conductor: 24 AWG tinned‑copper twisted‑pair; equivalent reference Belden 8107 cable specification ‑ Shielding: Full‑coverage continuous foil‑braid overall shield with drain wire ‑ Nominal impedance: 100 Ω ‑ Voltage rating: Max 30 V signal level (signal‑only cable, not for high‑power load) ‑ Mating durability: ≥500 connector plug‑unplug cycles ‑ Mechanical: Black industrial‑grade PVC outer jacket; strain‑relief at connector transition; weight approx 0.11 kg‑0.24 kg ‑ Operating ambient temperature: 0 ℃ ~ +60 ℃; storage temperature‑40 ℃ ~ +85 ℃; relative humidity 5‑95 % non‑condensingManualsLib ‑ Compatibility: Exclusively for GE Series 90‑30 PLC parallel I/O expansion bus; incompatible with Series 90‑70, Genius bus, RX3i backplane bus. ‑ System constraint: Total cumulative expansion‑cable length of one daisy‑chain shall not exceed 15 m. Last expansion rack must mount IC693ACC307 terminator plug。

Core Functions & Features

1. Transmits parallel I/O‑bus address, data, clock signals and backplane auxiliary power between Series 90‑30 CPU main‑rack and multiple expansion baseplates, implements multi‑rack daisy‑chain topology.
2. Special Y‑split (Wye) physical structure: no intermediate adapter required for daisy‑chain wiring; incoming signal connects to female connector, outgoing signal feeds next rack via male connector.
3. Full‑length continuous shield restrains EMI noise from frequency converters, contactor circuits, high‑voltage cables, stabilizes high‑speed parallel‑bus signal quality.
4. Pre‑assembled finished cable, no field soldering required; reduces on‑site wiring error risks.
5. Can also serve as Y‑adapter when constructing custom‑length expansion‑bus wiring.

On‑site Installation & Commissioning Notes

1. Power‑off the complete PLC rack system before connecting / disconnecting expansion bus cables.
2. Daisy‑chain wiring rule: Main‑rack expansion D‑Sub → IC693CBL300 male; Y‑end female receives upstream signal, Y‑end male connects to next expansion‑rack expansion‑port. Fit IC693ACC307 terminator plug on the D‑Sub port of last physical expansion rack of the whole chain. Do not install terminator on intermediate racks, multiple terminators will cause bus communication failureManualsLib。
3. Tighten D‑Sub shell fixing‑screws to prevent vibration‑caused loose contact. Route expansion‑bus cables separately from high‑voltage AC power cables; arrange shield‑drain wire for single‑point grounding. Do not over‑bend, stretch or squeeze cable body.
4. After finishing multi‑rack cabling and terminator installation, power‑on PLC. Verify all expansion‑rack modules can be fully identified inside programming software; check system expansion‑bus fault status bits.
5. Replacement note: Ordinary third‑party 25‑pin D‑Sub cables cannot substitute; internal signal‑pair sequence strictly matches GE parallel‑bus definition. After replacement, double‑check daisy‑chain sequence and terminator installation position, execute full‑point I/O validation test.

Common On‑site Abnormal Conditions

‑ Partial / all expansion‑rack modules cannot be recognized: Cable pin internal breakage; loose D‑Sub connectors; missing IC693ACC307 terminator; terminator installed on intermediate rack. ‑ Intermittent expansion‑rack drop‑out, random module fault alarms: Poor shielding grounding; cable routed alongside high‑noise power cables; connector vibration‑loose; internal intermittent conductor breakage. ‑ Whole expansion‑chain communication failure: Two terminators installed on same daisy‑chain simultaneously; serious pin damage on D‑Sub connector shell. ‑ Signal distortion: Total cumulative expansion‑cable length exceeds maximum 15‑m system limit.