This Standard covers mechanical and electrical requirements of service wires containing at least one coaxial core and optionally up to six twisted pairs@ used for service applications to extend the telephone/multimedia circuit from the distribution terminal to the subscriber's station protector NID (Network Interface Device) or protected NIU (Network Interface Unit). Furthermore@ a distinction between Type I and Type II is made with regard to transmission characteristics and shielding materials of the coaxial unit. Aerial Service Wire is intended to be self supporting and shall contain strength members to accommodate the appropriate requirements of this Standard. lhe self supporting properties may be accomplished by utilizing a zinc coated steel strength member or synthetic fibers as strength members embedded in a suitably shaped jacket. The coaxial unit is intended to be used for either RF or compressed digital video and radio transmissions. This unit shall also allow bi-directional traffic. The coaxial unit should also be capable of carrying high speed digital signals for LANNVAN applications (such as TI@ ISDN@ etc.) as well as POTS (Plain Old Telephone Services). The network supporting these protocols will be based upon physical lines having a characteristic impedance of 75 Ohms. The coaxial units are specified in three and four common sizes for Type I and Type II respectively@ to accommodate different drop lengths. The twisted pair wires are intended for voice and data transmission and their characteristics are based upon existing system requirements and projected application needs. PURPOSE: The purpose of this Standard is to establish generic technical requirements that may be referenced by individual telecommunications wire specifications covering products intended for the aerial outside plant use. The parameters covered provide material@ construction@ and performance requirements. Because this Standard does not cover all details of individual wire designs@ it cannot be used as a single document for procurement of product. This Standard is intended to be used in conjunction with an individual product specification that provides complete design details for the specific wire type and designates the applicable performance requirements. Such individual wire specifications may be prepared either by the user or the manufacturer. The specification designated for procurement is at the option of the user.