Hirschmann Belden OCTOPUS OS20-002800T5T5T5-TBBY999GMSE3S Manageable industrial Ethernet switch

Hirschmann Belden OCTOPUS OS20-002800T5T5T5-TBBY999GMSE3S Datasheet & Technical Guide

The Hirschmann Belden OS20-002800T5T5T5-TBBY999GMSE3S (Order Code: 942 133-273 / 942 133-999-116) is a high-port-density, managed industrial Ethernet switch from the OCTOPUS OS20 family. 

Designed with an IP67/IP65 ingress protection rating and vibration-proof M12 connector interfaces, this switch provides reliable data communication directly on machinery, in transportation networks, and in cabinet-free extreme industrial environments.

1. Product Introduction / Overview

The OCTOPUS OS20 series is engineered to deliver reliable networking outside protected control cabinets. Featuring 28 Fast Ethernet ports equipped with 4-pin M12 D-coded female connectors, the OS20-002800T5T5T5-TBBY999GMSE3S provides robust data throughput while eliminating the need for protective electrical enclosures.

Operating on Hirschmann’s HiOS (Hirschmann Operating System) software, it offers enterprise-grade Layer 2 and Layer 3 routing capabilities, redundancy protocols, and extensive network management options (SNMP, Web GUI, CLI) tailored for mission-critical industrial automation.

2. Technical Parameter List

3. Product Features / Core Advantages

High Port Density in IP67 Form Factor: Provides 28 individual M12 ports on a single compact housing, dramatically reducing wiring complexity across large production lines or train carriages.

Cabinet-Free Installation: IP67 water/dust protection and high mechanical resilience allow mounting directly on vehicles, machine frames, or outdoor structures without expensive NEMA/IP enclosures.

M12 Screw-Locking Security: M12 D-coded connectors ensure physical locking mechanisms that prevent accidental disconnections caused by heavy machine vibration or shock.

Ultra-Fast Network Redundancy: Supports Hirschmann’s MRP (Media Redundancy Protocol) and HIPER-Ring protocols to guarantee recovery times under 10 ms in ring topologies during cable faults.

Dual Power Redundancy: Features dual 24V DC inputs with reverse-polarity protection, preventing network downtime if one power channel fails.

4. Model Classification & Code Breakdown

The Hirschmann OCTOPUS model nomenclature specifies hardware configurations directly within the part code:

$$text{OS20} - underbrace{text{002800}}_{text{28 FX/TX Ports}} underbrace{text{T5T5T5}}_{text{M12 D-Coded Connectors}} - underbrace{text{TBBY}}_{text{24V DC Power / Approvals}} underbrace{text{999GMSE3S}}_{text{HiOS Software Tier & Customizations}}$$

OS20: OCTOPUS Fast Ethernet IP67 switch family.

002800: Configuration featuring 28 total Fast Ethernet interfaces.

T5T5T5: Twisted-pair copper media interfaces utilizing M12 4-pin D-coded socket connections.

TBBY: Dual 24V DC supply configuration with standard industrial safety approvals.

GMSE3S: HiOS Managed software suite including Layer 2/3 features, security policies, and diagnostic features.

5. Environmental Tolerance Conditions

6. Installation Method

Mounting Position: Secure the switch to a flat, solid surface or equipment wall using four M6 mounting bolts through the integrated flange holes on the switch chassis.

Grounding: Attach a heavy-duty grounding cable to the designated protective earth (PE) grounding screw on the housing to shield against electrostatic discharges (ESD) and electromagnetic interference (EMI).

Power Wiring: Connect dual 24V DC power feeds using 5-pin M12 A-coded power cables to the PWR1 and PWR2 ports. Hand-tighten and wrench-torque the M12 coupling nuts to 0.6 Nm.

Data Cables: Insert 4-pin M12 D-coded Ethernet cables into desired ports (1–28). Ensure all unused M12 ports are sealed with IP67 protective screw caps to maintain moisture resistance.

7. Operating Instructions & Maintenance

Initial Access & IP Assignment: Connect a computer to port 1 or via the M12 console port. Use Hirschmann HiDiscovery tool or BOOTP/DHCP to discover the device and assign an initial IP address.

Management Interface: Open a web browser to access the HiOS graphical interface or establish a Secure Shell (SSH) connection for command-line configuration.

Status LED Diagnostics:

STAT (Status): Solid Green = Switch operational; Solid Red = System error / hardware fault.

FAULT: Off = Normal operation; Solid Red = Power supply failure or ring redundancy fault.

Port LEDs: Solid Green = Link established; Flashing Green = Active data transmission; Off = No physical link detected.

Routine Maintenance: Periodically check that all M12 locking nuts and port protective caps remain torqued correctly to ensure the IP67 watertight seal remains intac