Frequently Asked Questions: Cable

C1. If I order a hybrid cable, which fibers are first, multimode or single-mode?
For an exact answer, please contact your Corning Cable Systems Customer Service Representative at 1.800.743.2671 with the part number of the cable in question.

General Rule of Thumb for STANDARD orders: Fibers are placed in a hybrid cable in the order of increasing core size. For example, let's use a 36-F cable containing (12) 62.5 micron, (12) 50 micron, and (12) single-mode fibers. Fibers 1-12 will be single-mode, fibers 13-24 will be 50 micron multimode, and fibers 25-36 will be 62.5 micron multimode.

C2. When pulling cable through conduit, how should I attach the pulling grip?
Once the appropriately sized pulling grip is chosen, the pulling grip may be installed directly over the outer jacket. Sufficient bond and tensile strength is created by this procedure. For more information, please consult Corning Cable Systems SRP-005-044 for all OSP cables. For installing a wire mesh pulling grip on multifiber tight-buffered cables with and without interlocking armor, please consult Corning Cable Systems SRP-005-024.

C3. What is a self-supporting cable? Can it be installed in an aerial environment in the same fashion as ALTOS® cable?
A self-supporting cable is a loose tube cable that can be installed in an aerial environment without the use of a messenger. Self-supporting cables are reinforced with internal strength members to support their own weight. There are two major types of self-supporting cables, Figure-8 and All-Dielectric Self-Supporting (ADSS). Figure-8 cables are loose tube cables with a messenger extruded onto it. This type of cable can be attached to the poles by splitting the messenger from the cable and attaching the messenger with similar clamps and dead ends as normal steel messenger. ADSS cables are round and do not use any metallic components. Extra aramid yarn is applied to the cable to support its weight between poles. Since the strength members of ADSS cables cannot be separated from the cable, ADSS cables require special tangent clamps and dead ends for installation. Please consult the Corning Cable Systems Recommended Procedures for installing Figure-8, (SRP-005-026) or ADSS cables (SRP-005-038).

Click Here To Submit a Question.