RAD FOM-40 FOM series Optical Transmission Module

RAD FOM-40 FOM series Optical Transmission Module Image 1

RAD FOM-40 fiber optic modem, 56 kbps to 2.048 Mbps synchronous data over fiber, up to 100 km.

The RAD FOM-40 is a high-speed fiber optic modem that converts a synchronous data circuit for transmission over fiber. It supports selectable data rates from 56 kbps up to 2.048 Mbps, covering standard leased-line and E1/T1-class speeds on a single fiber pair.

It works over single-mode or multimode fiber using 850nm/1310nm LED or 1310nm/1550nm laser optics, with a single-mode/1550nm link reaching up to 100 km. On the electrical side it supports common DTE interfaces including V.24/RS-232, V.35, X.21, RS-530 and V.36 (RS-449), plus G.703 co-directional. Front-panel V.54 loopback switches allow local and remote diagnostics without extra test gear.

This makes the FOM-40 a straightforward way to extend a synchronous data link over fiber where copper is impractical, and it is commonly found in legacy leased-line and WAN extension deployments. Tech-Star is UK-based and ships worldwide. Get in touch to confirm compatibility with your circuit.

Worldwide supply. We export new and refurbished telecoms and networking equipment internationally. International buyers welcome, request a delivered quote in your currency. Supply subject to export checks.

From the same manufacturer

Compatible with the same platform

Frequently asked questions

Is the RAD FOM-40 refurbished or new?
Tech-Star supplies both new and refurbished RAD FOM-40. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the RAD FOM-40?
Refurbished RAD FOM-40 comes with a 90-day parts and labour warranty as standard. Extended warranty options are available on request.
How do I get a price for the RAD FOM-40?
Pricing reflects current stock and lead time, so we quote per enquiry. Submit the part number through the contact form for a quote, typically within one business hour.
Can the RAD FOM-40 be returned?
Returns are accepted within 14 days of delivery in line with our return policy. A restocking fee may apply for opened items.
How quickly can the RAD FOM-40 be delivered?
Lead time depends on current stock. UK-based items typically ship the next business day; sourced items vary. We confirm lead time at quote.

Key Features56 kbps-2.048 Mbps selectable data rate; single-mode/multimode fiber support; V.54 loopback diagnostics
Applicationssynchronous leased-line extension over fiber; WAN link extension; legacy data circuit conversion
CompatibilityV.24/RS-232, V.35, X.21, RS-530, V.36 (RS-449) and G.703 co-directional DTE interfaces
Specificationssingle-mode/multimode fiber, 850/1310nm LED or 1310/1550nm laser optics; range up to 100 km single-mode
PlatformRAD FOM series
ManufacturerRAD

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