Why Maintenance Engineers Standardize on the TCSESM083F2CS0
Downtime rarely starts at the controller. It starts at the network layer, where an unmanaged switch quietly drops a packet and takes a production line offline. The Schneider Electric TCSESM083F2CS0 from the ConneXium range solves that problem with managed Ethernet TCP/IP switching, ring redundancy, and a port layout built for mixed copper and fiber plants. This replacement and upgrade guide explains what the switch does, where it fits, and how to keep it running.

What the TCSESM083F2CS0 Actually Delivers
This is a managed Ethernet TCP/IP switch with six RJ45 10/100BASE-TX copper ports and two 100BASE-FX single-mode fiber ports using SC connectors. The copper side handles PLCs, HMIs, and drives inside a cabinet. The fiber side carries traffic across long distances or between buildings without electrical interference. A 5.6 Gbps switching capacity and an 8K-entry MAC table keep local traffic moving, while jumbo frame support up to 9216 bytes suits larger data payloads on the same segment.
Key Parameters at a Glance
| Specification | Value |
|---|---|
| Product type | Ethernet TCP/IP managed switch |
| Ports | 6 x RJ45 10/100BASE-TX copper + 2 x 100BASE-FX single-mode fiber (SC) |
| Redundancy | HiPER ring, RSTP |
| Max ring nodes | 50 |
| Switching capacity | 5.6 Gbps |
| MAC table size | 8K entries |
| Jumbo frame | 9216 bytes |
| Supply voltage | 24V DC |
| Protection rating | IP20 |
| Mounting | 35 mm symmetrical DIN rail |
Redundancy and Serviceability in Real Plants
HiPER ring and RSTP support up to 50 ring nodes, so a single cable break does not stop the line. For a maintenance engineer, that means fewer emergency call-outs and more planned interventions. The managed interface supports SNMP, LLDP, and SNTP, which lets your SCADA or network monitoring tool report link status and device health before a fault becomes a stoppage. Port hardening adds a basic cybersecurity layer by limiting what can connect to each port.
Protocol support covers Ethernet TCP/IP, SSH, HTTP, HTTPS, SNMP, RS232, LLDP, Telnet, SNTP, and MRP. The Transparent Ready concept means the switch fits existing Schneider automation architectures without a redesign.

Where This Switch Fits
Water treatment and pumping stations. Fiber runs between remote pump houses and the main control room, while copper ports serve local PLC racks. HiPER ring keeps the network alive if a duct is damaged.
Manufacturing cells with mixed vendors. Six copper ports connect drives, robots, and HMIs from different suppliers. The managed interface lets you segment traffic and monitor each link.
Long conveyor or logistics lines. Single-mode fiber spans the distance between control cabinets. RSTP prevents a loop from taking down the whole line during maintenance.
Installation and Setup Notes
Mount the unit on a 35 mm symmetrical DIN rail inside a cabinet rated IP20 or better. Feed it from a 24V DC supply and confirm polarity before power-up. Use the SC fiber connectors for the single-mode links and standard RJ45 patch leads for copper devices. Keep fiber bend radius within the cable manufacturer’s limits, and label every port during commissioning so future service is faster.
Maintenance and Reliability
Inspect the switch during scheduled cabinet checks. Look for loose DIN rail clips, dust buildup on the IP20 housing, and damaged fiber connectors. Verify that ring status and link LEDs match your network diagram. Because the unit is managed, review SNMP traps and LLDP neighbor tables monthly to catch a degrading link before it fails. Keep spare fiber patch cords and a spare 24V DC feed available. The ConneXium range is active in production, so long-term support is realistic.
Compatibility and Integration
This switch works with Ethernet TCP/IP networks and integrates through SNMP, LLDP, SNTP, and MRP. It supports SSH, HTTPS, and Telnet for configuration access. RS232 is available for local console work. Because it follows the Transparent Ready concept, it fits Schneider automation systems and third-party Ethernet devices that speak standard TCP/IP.
Selection Checklist Before You Buy
Confirm your fiber type is single-mode with SC connectors. Check that 24V DC is available in the cabinet. Verify the DIN rail is 35 mm symmetrical. Count your copper devices against the six RJ45 ports. If you need more fiber links, review the rest of the ConneXium range. SpareTechPLC stocks this model and can confirm current lifecycle status and availability before you order.
Frequently Asked Questions
Is the TCSESM083F2CS0 managed or unmanaged? It is a managed Ethernet TCP/IP switch with SNMP, LLDP, and web-based configuration.
How many fiber ports does it have? Two 100BASE-FX single-mode fiber ports with SC connectors, plus six RJ45 copper ports.
What redundancy does it support? HiPER ring and RSTP, with up to 50 ring nodes.
What voltage does it need? A 24V DC supply.
How is it mounted? On a 35 mm symmetrical DIN rail.