Fiber optic patch cord supplier

It was decided to use the SC duplex connector as the multimode patch cord,i.e at all termination enclosures, and it was agreed that the single mode SC connector would be used for single mode applications.

For the external fixed cable it was necessary to use a 1U high 19-inch rack as the basis for the termination enclosures.The front panel panel contained three fields of four sc patch cord.Two fields were for miltimode,which were coloured beige to denote multimode fiber.The single mode adapters were blue to denote non-angled physical contact single mode connectors.

Since the termination enclosures might eventually be directly connected to internal termination enclosures(and thence to internal fixed cables) it was decided to specify the enclosure for as either a pigtailed or a patch panel variant.

The rear panel of the subrack contained a single gland suitable for the incoming fixed cable (12.5 mm diameter) and a number of predrilled,blanked holes to accommodate any future cables needing to enter the panel.Large tic-off posts were fitted into the baseplate to accept the central strength member of the fixed cables.Note that the metal content within the cables ,if any,would have to be earthde at a point as soon as possible after ententing the building. All external cables should always be terminated with 5 metres of entering a buiding anyway.
The ports on the front panel of the termination enclosure were numbered as follows: Multimode 01 to 16 Single mode A to H
It was decide to fit all termination enclosures with breacktets allowing them to be recessde into the cabinet which they were eventually fitted.This prevents damage to the jumper or patch cable assembies conected to the front panel during the opening and shutting of cabinet doors or movement of equipment with the cabinet.

A coding system had been defined for the termination enclosure which was based upon the node coding system with a sequential suffix.


The random mated insertion loss across any two connectors must not excceed 0.75dB.Single mode connectors and adapters must be visually identified by the use of the colour blue.Multimode connectors and adapters must be visually identified by the use of the colour beige.
fiber patch cords must be of different colours for single mode and multimode (preferably blue and beige) and the fiber type must be inkjet printed onto the cable sheath.