User's Manual

Site Requirements 90DIB500R41SR_FCC02 – 99.1 31
DIB-500 R4.1 Requirements concerning the electrical system
Cable requirements and cable specifications
5 Requirements concerning the electrical sys-
tem
This chapter describes the requirements for the electric system that must be met to
ensure proper operation of the product as intended at all times.
5.1 Cable requirements and cable specifications
The following sections describe general cable requirements and cable specifications for
data and HF cables that must be met for the proper operation of the product at the
installation location.
5.1.1 General cable requirements
All the feed lines must be identified or labelled according to their functions, e. g. the
grounding cable with "grounding + the name of the network element".
All the feed lines must be routed or suspended so that:
| Operation of the device is not impaired
| Tripping hazards for operators are safely prevented
| The required minimum distances are maintained, see section 4.1 on page 19,
| The manufacturer's specification/information for the cables and connectors used
are followed. If necessary, contact the respective manufacturer to obtain this infor-
mation.
Excess cable lengths required
The excess cable lengths required are derived from the corresponding termination
points inside the equipment rack and from the position of the equipment cabinet in the
operation room. The cables must not be subject to any tensile stress whenever the
equipment cabinet has to be moved for service work (refer to section 4.1.3 as of
page 20). An excess cable length of at least 1.5 m is recommended.