OMPlex is compatible with standard single-mode transceivers. OMPlex has been tested up to 25 Gbps data rate, as listed in the Table below. Unlike OMPlex Pro, the light on the opposite end of the fibre link is guided by a multimode fibre rather than a single-mode fibre. For the connection with the transceiver, OMPlex features a single-mode fibre (yellow furcation tubing) that is plugged into the transmit port (Tx) of the transceiver and a multimode fibre (aqua or orange furcation tubing) for the receive port (Rx). Therefore, the transceiver must be able to accept light from a multimode fibre on its Rx port. This is the case for the majority of single-mode transceivers up to 25 Gbps, that operate on a single wavelength. These transceivers have a lens that collects the light from any fibre that is plugged into the Rx port and focuses it onto the PIN or APD photodiode. In contrast, 40 Gbps and 100 Gbps transceivers, that use 4 lasers at 4 different wavelengths (LR4 and ER4), have a single-mode fibre stub on their Rx port due to their internal wavelength division multiplexing optics. Therefore, they are not compatible with OMPlex. A fibre stub can be easily identified by visually inspecting the Rx port. Fibres stubs are white due to the zirconium ferrule, while lensed Rx ports lets one see the PIN or APD photoreceiver.

 

Transceiver Power Budget (dB) OMPlex OMPlex Pro
10GBASE-LR 6.2 X X
10GBASE-ER 11.1 X X
10GBASE-ZR 24.0 X X
25GBASE-LR 6.3 X X
25GBASE-ER 18.0 X X
40GBASE-LR4 6.7 X
40GBASE-ER4 18.5 X
100GBASE-CWDM4 5.0 X
100GBASE-LR4 6.3 X
100GBASE-ER4 18.0 X

 

OMPlex can be used to upgrade short, low loss links using low-cost long range (LR) transceivers. Longer length links with multiple connectors or splice-points require larger power budget extended range (ER) transceivers, that operate on a larger extinction ratio to distinguish between logical 0 and 1.