Description
ICS TRIPLEX TC-303-01-2M0 Trusted Remote Expansion Cable
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ICS TRIPLEX |
| Part Number | TC-303-01-2M0 |
| Product Family | Trusted |
| Product Type | Communications / Remote Expansion Cable |
| Cable Type | TC-303-01 |
| System Architecture | Trusted TMR |
| Primary Connection | T8314 Fibre TX/RX Unit → T8310 Expander Processor |
| T8310 End | 96-way Type C connector |
| Connector Housing | Double-width hood |
| T8314 End | Three 4-way LEMO plugs |
| Cable Category | Cat 5 |
| Screening | Individually screened |
| Sheath | PVC |
| Application | Remote Trusted Expander connection |
| Nominal Link Rate | 250 Mbit/s |
| Length Code | 2M0 configuration |
The documented TC-303-01 construction uses individually screened Cat 5 cable with a PVC sheath. The T8310 end uses a 96-way Type C connector in a double-width hood, while the T8314 end uses three 4-way LEMO plugs.
Product Introduction
The ICS TRIPLEX TC-303-01-2M0 is a cable assembly within the Trusted communications cable family. Its purpose is to carry the Trusted remote expansion connection between a T8314 Fibre TX/RX Unit and a T8310 Expander Processor installed in a remote Trusted Expander Chassis. Rockwell documentation identifies TC-303-01 specifically as the 250 Mbit/s remote expander incoming cable from to .
The TC-303-01 designation is important because the cable is part of the Trusted expansion architecture rather than a general-purpose Ethernet patch cable. The physical termination is also specialized, with the side using a 96-way Type C connector and the side using three 4-way LEMO plugs.

TC-303-02-4M0
Application Scenarios & Field Pitfalls — Engineer’s Perspective
TC-303-01 is used when a Trusted system requires a remote expansion chassis connection through the fibre interface. It belongs between the fibre transceiver hardware and the remote expander processor; it should not be treated as a standard network cable or as an I/O module.
Typical Applications
- Remote Trusted expansion: Connects the Fibre TX/RX Unit with the Expander Processor.
- Distributed Trusted I/O: Supports communication with remote Trusted Expander Chassis installations.
- Safety-system maintenance: Used when the existing TC-303 cable assembly requires replacement.
- Legacy Trusted system support: Appropriate for maintaining installed Trusted expansion architectures where the original cable specification must be preserved.
Field Pitfalls
Do not substitute a standard Cat 5 cable. Although TC-303-01 uses Cat 5 cable internally, the complete assembly has specialized connectors, screening, hood construction, and Trusted-specific wiring. The cable assembly is therefore not equivalent to an ordinary Ethernet cable.
Do not confuse TC-303-01 with TC-302-01. The Trusted Fibre TX/RX documentation identifies TC-302-01 as the outgoing cable from T8312 to , while TC-303-01 is the incoming cable from to . Their system positions are different.
Check connector condition carefully. The -side 96-way Type C connector and three LEMO connections at the side are integral to the cable assembly. Pin damage, poor shielding continuity, or incorrect mating can create intermittent remote-expansion communication faults that may initially appear to be an expander or fibre-interface problem.
Related Products
- — Trusted Expander Processor; the processor-side endpoint for TC-303-01.
- — Trusted Fibre TX/RX Unit; the fibre-interface-side endpoint for TC-303-01.
- T8312 — Trusted Expander Interface Adaptor; associated with the outgoing remote-expansion path.
- TC-302-01 — Remote expansion cable from T8312 to ; different direction and system position.
- TC-302-02 — Related remote expansion cable variant; verify construction and termination before substitution.
- TC-303-02 — Alternative TC-303 cable construction using LSF/OH sheath rather than the PVC construction specified for TC-303-01.
- TC-301-01 — Local expansion cable from T8312 to .
- TC-301-02 — Related local expansion cable variant.
- T8300 — Trusted Expander Chassis that houses Trusted expansion equipment and I/O.
Procurement Note
For TC-303-01-2M0, verify the complete part number rather than purchasing by a generic description such as “Trusted communication cable.” The critical checks are the TC-303-01 cable type, 2M0 length designation, / application, 96-way Type C connector, three 4-way LEMO plugs, and cable construction.
A number of commercial listings incorrectly describe TC-303-01-2M0 as an automation controller, digital I/O module, analog output module, or high-voltage inverter. Those descriptions are inconsistent with the Trusted TC300 communications-cable documentation.
For a replacement in an operating Trusted system, I would verify the installed cable label and connector arrangement against the existing / architecture before approving the part.
