What is the difference between Telecom "Mobility", "Central Office", and “Outside Plant (OSP)" applications?

Posted by Steve Kase

June 12 2014

Power Lug and Splice Connections are used in many phases of telecommunications. Telecommunications transmission and switching generally require power to be supplied to move and switch communications.  When power is provided, grounding of that power against internal shorting and/or lightning protection is required.

Large telecommunications companies aggregate switching at different points in the transmission process. “Central Office” is a term which connotes transmission, reception, and switching at centralized, high volume locations.  Both land lines and cellular communications travel through these large hubs. Very large power, high amperage, and significant safety/grounding issues are involved in these locations. Larger cable, flexible cable for bending in tight space constraints, and terminal lugs and splices which can withstand major amperage spikes, are used in Central Office applications where there are large power needs and grounding requirements.

“Outside Plant” is the terminology used to describe the receiving of power as well as switching in and out to a smaller, (less centralized) user area. Outside Plant usually pertains to land lines. These plants vary in power usage / grounding-protection needs by the number of users/calls being handled. Generally large amperage lugs and splices are used on the inbound power side, with multiple terminals in the 8 gauge to 4/0 Range being used for grounding/lightning protection.

 “Mobility” is a broad term referring to cellular telecommunications processes.  Mobility applications are analogous to “outside plant”, except they involve operation through cellular towers, not land-based transmission. Increasingly, as towers accommodate more and more call/data volume, and as towers support multiple transponders to move communication, power needs are growing. Power supplied to cell towers is approaching that of larger “outside plant” switching locations; cable and termination requirements are moving from 2/0-4/0 ranges into the 250 MCM-750MCM range. Grounding has moved up in amperage capacity as well. Lightning protection, however, has remained in the 8 Gauge to 4/0 range, as call volume is not the driver, but lightning surge power which is range-stable over time.

ASK Power has been producing lugs and splices to the Telecommunications market for some 20 years. ASK was an industry-innovator for mobility in its earliest years. ASK co-developed with Andrew Corporation in the early 1990’s a full-line of power and grounding connectors, which have become the standard for telecommunications cellular towers and power-switching grounding.

ASK Power manufactures virtually EVERY GAUGE and HOLE SIZE/SPACING configuration used in Telecommunications. ASK Power has Underwriters Laboratories Listing of its telecom products to the UL486A Specification for Lugs and Splices, as well as UL467, Specification for High Amperage Lugs and Splices in Lightning / Surge Protection Applications. ASK has tested and had approved its product with industry-accepted crimping tools, including Burndy, Thomas & Betts, and Huskie. ASK Power STOCKS these products for maximum availability.

When Telecom Power and Grounding Termination needs arise, ASK Power Answers!!!