Black Box Corporation
Black Box Fiber Optic Duplex Multimode Coupler FOT123 adapter
Duplex multimode fiber coupler joins two pairs of LC connectors in a silver bronze housing, RoHS compliant
- TypeOthers
- Duplex multimode coupling links two LC fibre pairs
- Bronze construction resists wear in patch-panel environments
- Silver finish simplifies port identification in dense racks
- RoHS certified materials meet restricted-substance requirements
- Environmentally friendly design supports green procurement policies
Fiber Optic Duplex Coupler
The Black Box FOT123 adapter joins two LC duplex patch cables to extend a multimode fibre link. It suits installers and network engineers who need a straight-through connection in patch panels or wall outlets. The bronze housing meets RoHS environmental standards and ships new in silver finish. No active electronics are included.
Passive Multimode Behaviour
Signal passes through the coupler without amplification or regeneration. Insertion loss adds to the total link budget, so long runs must account for the extra attenuation. The adapter handles sustained traffic at the line rate of the connected transceivers. Performance stays consistent as long as the fibre ends stay clean and properly seated.
Compatibility Check Points
Verify that both cables use LC duplex connectors and multimode fibre matching your network specification. Confirm the patch panel or outlet accepts a feed-through adapter with this flange profile. Ensure cleaning tools and inspection scopes are available for the LC ferrules. The FOT123 does not convert between single-mode and multimode fibre types.
Highlights
- Duplex multimode coupling links two LC fibre pairs
- Bronze construction resists wear in patch-panel environments
- Silver finish simplifies port identification in dense racks
- RoHS certified materials meet restricted-substance requirements
- Environmentally friendly design supports green procurement policies
Specifications
| Brand | Black Box |
|---|---|
| Type | Others |
Questions about this item
Does the FOT123 generate any noise or heat when installed in a live rack?
The FOT123 is a passive duplex multimode coupler with bronze LC connectors; it has no active electronics, fans or power supply, so it produces zero noise and negligible heat during continuous operation.
What fibre patch cables must I already own to use this coupler?
You need two duplex multimode patch cords terminated with LC connectors on the ends that will plug into the FOT123's LC female ports.
Can I connect the FOT123 directly to legacy ST or SC patch panels I still use?
No, the FOT123 only provides LC female interfaces; connecting to ST or SC equipment requires separate hybrid patch cords or adapter panels.
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