Backorder – order now. Delivery when in stock, usually within 10 working days (subject to change)
Fast & Reliable Availability
We distribute our stock across multiple warehouses to ensure quick processing and delivery.
Need something urgently for Click & Collect?
If an item shows as in stock, please call us on 01442 292929 or email sales@proav.co.uk to confirm availability before visiting.
Fast & Reliable Availability
We distribute our stock across multiple warehouses to ensure quick processing and delivery.
Need something urgently for Click & Collect?
If an item shows as in stock, please call us on 01442 292929 or email sales@proav.co.uk to confirm availability before visiting.

On orders over £75

Request here
The OCM 5891 is a 9 channel CWDM passive optical multiplexer and/or de-multiplexer. This module allows the combination of up to 9 optical signals into a single unidirectional or bi-directional fiber link.
This version of the module supports 9 of the 18 wavelengths as specified in the ITU standard CWDM channel spacing grid (ITU-T G694.2) namely 1270nm through 1430nm wavelengths.
The module features a Upgrade Port (UPG) for expansion, when connected to the OCM 1892 the two modules (combined) will support all 18 CWDM wavelengths.
The module is passive in operation, meaning it requires no power, and is mechanically compatible with all Series 5000 rack frames and installs from the rear of the rack.