Honeywell 51202329-604 Series C I/O Link Cable

Product Introduction

The 51202329-604 is a factory-terminated I/O Link cable assembly from Honeywell's Experion PKS Series C family. Specifically, it serves as the Cable A half of a redundant I/O Link pair, and it carries a yellow label for IOL1A or IOL2A port identification. This gray header cable provides three drops and spans two cabinet sides front-and-back within the same cabinet, or the same side of adjacent cabinets. Additionally, it works as a passive assembly that plugs directly into the C300 Controller IOTA and the Series C IOTA drop connectors.

Technical Specifications

The table below lists the published parameters for this cable assembly. Honeywell documents these values in the R301.1 cabling guide and the EP03-300-511 C300 capacity document.

Communication and Capacity Notes

The I/O Link operates at 750 KBaud and delivers 2,000 Link Units per second for Series C I/O. One Link Unit equals one parameter read or write per second. Therefore, engineers should plan I/O loading against the 40-unit ceiling per link. IOTA address jumpers run from 1 to 40 and map directly to this limit. Furthermore, the C300 Controller exposes two links, IOL1 and IOL2, so one controller can address two independent I/O segments. Meanwhile, the yellow Cable A label helps technicians match this cable to the A-side port during installation.

Double-Cabinet Span Design

This 51202329-604 header cable spans two cabinet sides front-and-back of the same cabinet. Alternatively, it can serve the same side of adjacent cabinets per R301.1. Moreover, the three drops distribute the I/O Link across multiple CCAs in a single run. However, the cable remains a passive harness, so it adds no active electronics to the link. Besides, it can chain to additional header or extension cables when the layout requires longer reach.

Redundancy Pairing

Honeywell always requires Cable A and Cable B together for redundant I/O Link operation. This item supplies Cable A only, which carries the yellow label and connects to the IOL1A or IOL2A port. The matching Cable B uses a green label and connects to the B port. Therefore, buyers who need a full redundant pair should order both cables. Besides, Honeywell sells these cables individually or as a pair, depending on the order line.

System-Level Compliance

The Series C platform holds EN 61326-1:2013 EMC certification and IEC/EN 61010-1 safety approval. This passive cable harness ships inside the certified cabinet assembly. Consequently, it does not carry a per-cable UL, CE, or CSA marking. For instance, the platform certificate covers the harness as part of the installed system rather than as a standalone article.

Mechanical and Environmental Parameters

Honeywell does not publish connector form factor, conductor gauge, jacket material, flame rating, or per-cable temperature range for the 51202329-604. The manufacturer treats this item as a passive cabinet-internal harness. Consequently, buyers should rely on the certified cabinet assembly ratings instead of per-cable figures. First, the harness operates inside a controlled cabinet environment. Next, the 30 ft (9 m) extension ceiling limits total I/O Link run length. Finally, third-party distributor pages list contradictory figures such as 0.5 mm² PVC, 22 AWG ferrule, M12 connectors, and RG6 coax; these claims conflict with each other and with Honeywell sources, so this listing rejects them.

Installation Guide

Installing the 51202329-604 follows a clear cabinet wiring sequence. First, mount the C300 Controller IOTA in its assigned CCA slot and confirm the IOL1A or IOL2A port symbol. Next, connect the yellow-labeled Cable A to that A port. Then, route the three drops along the cabinet top toward the target Series C IOTAs. After that, verify that each IOTA address jumper sits between 1 and 40 and matches the planned link map. Additionally, install the matching green Cable B on the B port for redundancy. Finally, chain any extra header or extension cables within the 30 ft (9 m) extension limit.

Practical Wiring Tips

Label both ends of the cable before pulling it through dense cabinet sections. Besides, keep the yellow Cable A on a separate physical path from the green Cable B wherever the layout allows. Moreover, check that each drop lands on the correct IOTA and that no address repeats on the same link. Therefore, a short continuity check before power-up saves commissioning time.

Packaging List

• 1 x Honeywell 51202329-604 I/O Link header cable, Cable A, yellow label, 3 drops, gray

FAQ

Q1: What does the 51202329-604 cable connect?
A: It links the C300 Controller IOTA to Series C IOTAs and IOMs. Specifically, it carries the 750 KBaud I/O Link signal to the IOL1A or IOL2A port.

Q2: Is this a complete redundant pair?
A: No, this item supplies Cable A only. Honeywell pairs it with a green-labeled Cable B for redundancy, so order both for a full pair.

Q3: How many drops does this header cable provide?
A: The assembly provides three drops. Additionally, it spans two cabinet sides or adjacent cabinets and can chain to extension cables.

Q4: What is the maximum I/O count per link?
A: Each link supports up to 40 I/O units at 50 ms CEE. Furthermore, each C300 Controller offers two links, IOL1 and IOL2.

Q5: How is the 51202329-604 shipped?
A: We ship orders by Fedex, UPS, and DHL. Besides, each order includes the cable in protective packaging.