Programming Documents for Pre-K for SA - The City of San Antonio

12 Aqua 24 Aqua/Black Tracer 36 Aqua/Double Black Tracer
11.5 Copper Cable Splicing
Copper cable splicing is allowed only in backbone cable—never for horizontal cable which extends
between the telecommunications room and the work area.
Two common modular (groups of pairs) splicing techniques are in-line and foldback. Foldback
splicing is the preferred method, where practicable.
With the in-line splicing method, wire is placed in a straight-across arrangement and provides for little
wire slack. The in-line method is not designed to be rearranged and should receive minimum handling.
The foldback splicing method allows the conductors to be folded into the splice which in turn provides
for maintenance, rearrangement, and transfer of the conductors. The foldback method typically
requires more cable be stored within the splice and could increase the size of the needed splice closure.
The splice connecting hardware shall be selected by the designer to meet the application requirements.
Follow the equipment manufacturer’s installation guidelines.
The installer should pay particular attention to:
• Check cable shield for presence of unsafe voltages.
• Bond cable shields across the splice before splicing.
• Bond cable shields to ground.
11.6 Optical Fiber Cable Splicing
There are two major categories of field-splicing methods for optical fibers—fusion and mechanical.
Both single-fiber and multiple-fiber (typically 6- or 12-fibers) splicing methods are available.
Only fibers with the same core and cladding dimensions and similar performance characteristics
(bandwidth) shall be spliced (e.g., 50 μm core to 50 μm core; 2000 MHz/km to 2000 MHz/km).
The splice hardware shall be selected by the designer to meet the application requirements. Follow the
equipment manufacturer’s installation guidelines.
60