Sophos Modules & Transceivers

Description

Sophos Modules & Transceivers

Sophos Modules & Transceivers form the connectivity accessory portfolio for Sophos network security and switching products. They enable fiber and copper expansion, higher speeds, and flexible port configurations.

Transceiver Range

The core SFP and SFP+ lineup covers the most common enterprise requirements: multimode short-reach (SX/SR), single-mode long-reach (LX/LR), and copper 1000Base-T. These modules are used in both Sophos Firewall appliances and Sophos Switch models that feature SFP or SFP+ cages.

Flexi Port Modules

For Sophos Firewall platforms that support expansion bays, Flexi Port modules provide additional copper, fiber, 10G, or 40G connectivity. Newer modules also introduce multi-gigabit NBASE-T options on selected XGS models.

Why Official Modules?

Using Sophos-branded or officially tested modules ensures firmware recognition, full feature support, and a clearer support path. Third-party optics may work but can generate warnings or fall outside standard support.

Selection Guide

Choose by Speed

1G requirements → ITFZTCHSX, ITFZTCHLX, or ITFZTCHTC. 10G requirements → ITFZTCHXF or ITFZTCHLR.

Choose by Media and Distance

Multimode short distance → SX or SR. Single-mode longer distance → LX or LR. Copper → ITFZTCHTC.

Choose by Platform

Sophos Switch SFP ports typically use 1G modules. SFP+ ports support both 1G and 10G modules depending on the switch model. Firewall Flexi Port modules are model- and revision-specific.

Verify Before Purchase

Always cross-check the official Sophos compatibility list and the specific appliance or switch datasheet for the latest supported combinations.

Installation Notes

Insert transceivers firmly into the SFP/SFP+ cage until they click. Use appropriate fiber patch cables (LC duplex for most optical modules) matched to the fiber type. For copper SFP modules, use standard Cat5e or better Ethernet cables. Power-cycle or reload is rarely required, but verify link status in the management interface after insertion.

Flexi Port modules must be installed according to the appliance hardware guide, usually with the unit powered off and following electrostatic discharge precautions.

Best Practices

Label both ends of fiber links. Keep spare official modules for critical links. Document which transceiver is used in each port. Prefer Sophos-branded or listed third-party optics for production environments. Monitor optical power levels where digital diagnostics (DDM/DOM) are supported.

Benefits for IT Teams

Simplified procurement of known-compatible parts. Reduced risk of unsupported configurations. Flexible expansion of existing Sophos investments. Consistent support experience when using official modules.

Main Benefits

Guaranteed Compatibility

Official Sophos-coded modules are recognized by firmware.

Benefit: Avoid third-party warnings and ensure full support.

1G and 10G Options

SFP for 1G and SFP+ for 10G fiber or copper.

Benefit: Flexible choice for access, distribution, or uplink speeds.

Short and Long Reach

SX/SR for multimode short distances; LX/LR for single-mode longer distances.

Benefit: Suitable for both in-building and campus/campus-to-campus links.

Copper SFP Option

1000Base-T transceiver converts SFP ports to RJ45.

Benefit: Easy copper connectivity where fiber is not required.

Modular Expansion

Flexi Port modules add ports or change media types on firewalls.

Benefit: Scale connectivity without replacing the entire appliance.

Ecosystem Integration

Works seamlessly with Sophos Firewall and Sophos Switch.

Benefit: Consistent management and support experience.

Typical Use Cases

1. Fiber Uplinks on Switches

Add 1G or 10G fiber connections on Sophos Switch SFP/SFP+ ports.

2. Firewall Fiber Connectivity

Connect XGS/XG appliances to fiber infrastructure using official SFP/SFP+ modules.

3. Copper Conversion

Use the 1000Base-T SFP where an RJ45 connection is preferred on an SFP port.

4. 10G Aggregation

Deploy 10GBase-SR or LR modules for high-speed links between switches or to servers.

5. Port Expansion

Install Flexi Port modules to increase port density or add specialized interfaces on compatible firewalls.

6. Mixed Media Environments

Combine copper and fiber options within the same Sophos deployment.

Who Should Buy Sophos Modules & Transceivers?

Any organization running Sophos Firewall or Sophos Switch that needs fiber connectivity, copper conversion on SFP ports, 10G links, or additional ports via Flexi Port modules. Ideal for both new deployments and expansions of existing Sophos infrastructure.

Transceiver Comparison Snapshot

Frequently Asked Questions

What are the main Sophos transceiver part numbers?

ITFZTCHSX (1G SX), ITFZTCHLX (1G LX), ITFZTCHTC (1G copper), ITFZTCHXF (10G SR), and ITFZTCHLR (10G LR).

Can I use third-party SFP modules?

Sophos publishes a list of tested third-party modules. Unlisted modules may work but can generate warnings and may not be fully supported.

Are these modules compatible with Sophos Switch?

Yes. The same SFP and SFP+ transceivers are used on compatible Sophos Switch models.

What is a Flexi Port module?

An optional expansion module for certain Sophos Firewall models that adds additional copper, fiber, 10G, or 40G ports.

Do I need special fiber cables?

Yes. Match multimode fiber for SX/SR modules and single-mode fiber for LX/LR modules. Most optical modules use LC duplex connectors.

Can a 10G SFP+ module run at 1G?

Many dual-rate modules support both speeds, but always check the specific module and port capabilities.

Where can I find the official compatibility list?

Sophos Support publishes a knowledge-base article covering Sophos and tested third-party transceivers for Firewall and Switch.

Are DAC cables supported?

Yes. Certain Direct Attach Copper (DAC) / Twinax cables are listed in the official compatibility documentation.