PART E - IDENTIFICATION OF CABLE SYSTEMS AND WIRE CIRCUITS
35. All cable systems, CX-11230( )/G, CX-4566/G, CX-13295/G, and wire
circuits must be identified. This is accomplished during construction. The
information is obtained from the unit signal operation instructions (SOI).
Circuits are designated by individual circuit numbers. The circuit number
remains the same from the beginning to the end.
36. Tagging the cable often provides the only method to distinguish one
line from another.
Tagging simplifies turning over circuits to relieving
units, makes tracing the line easier, and simplifies maintenance.
Every
unit is responsible for ensuring that its lines are adequately labeled.
37.
During construction, the lines are tagged at the following points:
a. Crossings at roads,
trails,
trolley
and
railroad
tracks,
road
junctions, and bridges.
b. Communications centers or nodes.
c. Telephones, repeaters, switchboards, testing points.
d. Where construction changes from surface to buried and aerial and
back to surface.
e. At a point where the line branches off the main road.
f. Frequent
intervals where several lines are
laid along the
same
route.
g. Possible future trouble spots.
h. Both sides of the tension bridge.
38. Tags must be securely attached to the line.
At points where many
lines are tagged, such as test terminal points, tags should be staggered or
in oblique rows. This prevents one tag from covering another.
39. The oblong-shaped tag must be made of moisture-proof and water-proof
material. Tags are cut, notched, colored, or marked in accordance with the
SOI issued by the organization or unit headquarters. The markings must not
disclose the unit designation.
40. An example of some of the cuts, notches, and markings that can be
employed are given in Figure 2-5 on page 2-10.
2-9
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