FiberHome FonsWeaver 550F O2500 Optical Interface Board (STM-16)
Product Overview
The FiberHome FonsWeaver 550F O2500 is an optical interface board for the FonsWeaver/CiTRANS 550F multi-service transport platform (MSTP). The O2500 board provides a single STM-16 optical port, supporting the transmission of SDH/SONET services over fiber optic networks at 2.5 Gbit/s line rate.
This board is the single FSP (full service port) version with one port, supplied without an SFP module. It is the O2500-S16.1 configuration, which carries one STM-16 optical circuit on a single LC interface, and is used to add or expand STM-16 aggregation capacity in 550F network nodes.
Key Features
- STM-16 optical interface board for the FiberHome FonsWeaver 550F MSTP platform
- Single port configuration (1 x STM-16) without SFP module
- O2500-S16.1 optical circuit plate with LC connector interface
- 2.5 Gbit/s SDH line rate per STM-16 port
- Supports multi-service transport of TDM, Ethernet and other services
- Hot-swappable board design for field replacement
- Compatible with FiberHome 550F network management system
Technical Specifications
| Board type | O2500 optical interface board |
|---|---|
| Configuration | single FSP, 1 port, without SFP module |
| Line rate | STM-16 (2.5 Gbit/s) |
| Optical variant | S16.1 (single STM-16 light path) |
| Connector | LC |
| Platform | FiberHome FonsWeaver / CiTRANS 550F MSTP |
| Application | metro and access SDH/MSTP networks |
Applications
The O2500 board is used in telecommunications and utility networks for metro and access SDH transport, connecting voice, data and Ethernet services over STM-16 fiber rings. It is a common spare and expansion board for FiberHome 550F nodes installed by telecom operators and private network operators.
Ordering and Selection
When ordering the O2500 board, confirm the board variant, port configuration and the 550F chassis slot, because each the O2500 board is produced for a specific STM-16 application. The single-port the O2500 board is supplied without an SFP module, and the selected FiberHome O2500 configuration must match the network management system and fibre type at your site. Our team can help you confirm that the O2500 board you select is correct for your 550F node.
Maintenance and Support
The FiberHome O2500 board is hot-swappable, allowing field replacement without interrupting the node. Genuine O2500 boards and related 550F spares are available through Seven Star LLC for telecom operators in the region. Contact our team and we will confirm availability and lead time for your network.
Industry Applications and Custom Support
The FiberHome O2500 board is trusted by operations and maintenance teams across telecom and utility networks in Oman, the GCC and the wider Middle East region. Our customers select the O2500 board for reliability, genuine quality and dependable supply. Seven Star LLC provides custom support including technical selection, quotation and after-sales assistance, and we regularly supply this board as part of preventive maintenance programs and network expansion projects. Whether you need a single board or a complete set for a project, our team supports procurement and inspection.
The O2500 optical interface board terminates the STM-16 optical line of the FonsWeaver 550F, and the board is hot-swappable for the service of the SDH/MSTP network.
The board provides the optical supervision and the loopback functions, and the card is identified by the standard label for the FonsWeaver 550F system.
The O2500 board is used in the SDH network for the optical line termination, and the board supports the protection switching and the performance monitoring of the STM-16 ring.
The FiberHome O2500 board plugs into the FonsWeaver 550F chassis and terminates the 2.5 G optical line of the metro ring.
Why Seven Star LLC?
Seven Star LLC supplies genuine FiberHome network equipment and spare boards to operators in the Middle East and GCC region. We verify board types and variants, helping network teams keep their SDH/MSTP infrastructure operational.
Seven Star LLC maintains a regional inventory in Muscat and coordinates directly with manufacturers across Europe and Asia. Our engineers help you verify the exact model and revision before ordering, avoiding costly mismatches.
Request a Quote for FiberHome FonsWeaver 550F O2500 Optical Interface Board (STM-16)
For the FiberHome O2500 board or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your network, interface and power requirements, and our specialists will respond with a detailed commercial proposal and the official FiberHome documentation.
Checking the Board Before You Order
FiberHome boards with similar names can differ in port count, optical variant and hardware revision. To confirm that a spare O2500 will work in your node, check:
- Front panel and board label – the board name (O2500), the optical variant (S16.1 here) and the barcode or serial label on the board edge.
- Existing inventory in the NMS – the board type and version that the network management system reports for the slot, which is the most reliable record of what the node expects.
- Chassis and slot – that the target slot in the 550F subrack accepts a line board of this type.
- Optics – this board is supplied without an SFP, so match the STM-16 optical module to the span length, wavelength and fibre type of the link. Reuse the module from the failed board only if it tests good.
Replacement and Commissioning
Although the board is hot-swappable, a live STM-16 line normally carries protected traffic, so plan the swap in a maintenance window and coordinate with the NOC:
- Confirm that the traffic on the line has switched to the protection path, or force the switch through the NMS.
- Wear an ESD strap, disconnect and cap the LC fibres, then remove the board.
- Insert the replacement fully and wait for it to boot and be recognised by the node.
- Check the board configuration in the NMS and download it again if needed.
- Clean and inspect the fibre end faces, connect the SFP and patch cords, and check the received optical power against the link budget.
- Clear alarms, watch the performance counters for errors, then release the protection switch.
Troubleshooting Common Line Faults
- Loss of signal (LOS) – first check the fibre, the patch panel and the connector cleanliness, then the far-end transmitter.
- High bit errors – received power that is too low or too high (overload on short spans without attenuation) is a frequent cause.
- Board not recognised – reseat the board and check its version and compatibility with the node software.
- SFP alarms – swap the module with a known-good one before replacing the board.
FiberHome Networks in Oman and the GCC
FiberHome MSTP equipment is used in operator backhaul and in private networks for utilities, pipelines and oil and gas sites, where SDH rings carry SCADA, teleprotection and voice. Many of these networks are expected to run for years after the equipment is superseded, so a spare line board kept on the shelf can save a long outage on a critical ring.
Sourcing from Seven Star LLC
Send us the board label details and the NMS inventory entry for the slot. We confirm the variant and revision, and give you the lead time and condition of the board before you order.
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FiberHome FonsWeaver boards listed
Two items are on this page: the O2500 optical interface board for the FonsWeaver 550F, an STM-16 unit, and the O2500-4 optical line unit for the FonsWeaver 780B. STM-16 is the SDH level that carries about 2.5 Gbit/s. They are line cards that slot into the subrack of the transmission equipment and connect it to the fiber route.Ordering FiberHome spare boards: what we need
Boards with the same printed name can differ in optical reach, wavelength and hardware revision, so the full identification matters. Please send:- The equipment type and subrack, for example FonsWeaver 780B
- The board name on the front panel and the code and version on the board label
- The optical interface type, connector and number of ports
- A photo of the front panel and label
Browse FiberHome products by category: Industrial Communications.

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