Honeywell 51202329-500 I/O Link Cable Gray
Gray pre-terminated I/O Link cable for Honeywell C300 IOTA. Six drops, 750 KBaud, Cable A yellow label.
Honeywell 51202329-501 Series C I/O Link Cable B
Product Introduction
The Honeywell 51202329-501 is a passive I/O Link cable assembly for the Experion PKS Series C platform. This gray header cable distributes the I/O Link signal horizontally across cabinet tops. Specifically, it connects the C300 Controller IOTA to Series C IOTAs through six drop points. The 51202329-501 carries the green label and serves as Cable B in a redundant pair. Therefore, it works alongside Cable A, which uses a yellow label.
Engineers pair the two cables because Honeywell specifies Cable A and Cable B as a required redundant set. Moreover, the assembly ships pre-terminated and plugs directly into IOTA drop connectors. This design removes field termination work from the cabinet build. Additionally, the cable chains to extension cables when the cabinet spans multiple sides, per R301.1 cabling rules.
Technical Specifications
The cable runs on the Series C I/O Link bus at 750 KBaud. Honeywell publishes a throughput of 2000 Link Units per second for this I/O family. Each C300 Controller manages two separate I/O Links, designated IOL1 and IOL2.
| Parameter | Value |
|---|---|
| Cable family | Series C I/O Link (IOL1) |
| Link signaling | 750 KBaud |
| Jacket color | Gray |
| Redundancy variant | Cable B, green label (IOL1B/IOL2B) |
| Cable type | Header cable, 6 drops |
| Drops/taps | 6 |
| I/O Links per C300 Controller | 2 (IOL1 + IOL2) |
| Link throughput | 2000 Link Units/sec |
| Max I/O units per link | 40 (50 ms CEE) |
| IOTA address jumpers | 1 to 40 |
| Connector text symbol | IOL1A/IOL1B (gray) or IOL2A/IOL2B (violet) |
| Supported IOTA sizes | 6 in (152 mm), 9 in (229 mm), 12 in (305 mm) |
| Built-in ports | None (passive cable) |
This variant supports IOTA sizes of 6-inch (152 mm), 9-inch (229 mm), and 12-inch (305 mm). Furthermore, each I/O Link accommodates up to 40 I/O Units under a 50 ms CEE configuration. The cable connector symbol reads IOL1B or IOL2B, depending on the port assignment.
Mechanical and Environmental Parameters
Honeywell publishes limited mechanical data for this passive harness. The jacket color is gray, and the assembly ships pre-terminated with a green label. Besides, the cable spans multiple CCAs across a cabinet side per R301.1 cabling rules. Extension cables come in 9, 25, 36, and 48 inch lengths, with a 30 ft (9 m) extension ceiling.
However, Honeywell does not publish conductor gauge, jacket material, flame rating, per-cable weight, or per-cable temperature and IP rating for this order code. The platform itself meets EN 61326-1:2013 for EMC and IEC/EN 61010-1 for safety. This passive cable ships inside the certified cabinet assembly. Consequently, it carries no per-cable UL, CE, or CSA marking. Third-party distributor pages list contradictory values, so this description omits them per manufacturer-source-only practice.
Installation Guide
First, confirm the C300 Controller IOTA port assignment. Cable B with the green label connects to IOL1B or IOL2B. Next, route the 6-drop trunk horizontally across the cabinet top. The trunk spans multiple CCAs on one cabinet side. Then, plug each drop connector into the matching IOTA drop connector. Meanwhile, set the IOTA address jumpers from 1 to 40 so each unit has a unique address on the link.
For redundant links, install Cable B alongside Cable A with the yellow label. Furthermore, chain header or extension cables when the cabinet side needs more coverage. Keep the total extension within the 30 ft (9 m) ceiling. Finally, verify link signaling at 750 KBaud and confirm no link exceeds 40 I/O units at the 50 ms CEE cycle.
Packaging List
51202329-501 I/O Link Cable Assembly (Cable B, green label) — 1 piece
Anti-static protective bag — 1 piece
Cardboard shipping carton — 1 piece
FAQ
Q1: What is the difference between Cable A and Cable B?
Cable B carries a green label and plugs into the IOL1B or IOL2B port. Cable A uses a yellow label and connects to the A-side port for redundancy.
Q2: Can I use this cable without a redundant pair?
Honeywell specifies Cable A and Cable B as a required pair for redundant systems. Non-redundant setups still follow the published cabling rules in R301.1.
Q3: How many I/O Units can one link support?
Each I/O Link supports up to 40 I/O Units with a 50 ms CEE. IOTA address jumpers run from 1 to 40 accordingly.
Q4: Does this cable include field wiring terminals?
No. The 51202329-501 is a passive I/O Link trunk cable. Field-wiring terminals belong to the IOTA modules, not this harness.
Q5: How is the product shipped?
Orders ship via Fedex, UPS, and DHL with anti-static packaging and tracking support.
