ADTRAN ATLAS 800PLUS user manual Grounding Instructions, Rear Panel

Chapter 2. Installation

GROUNDING INSTRUCTIONS

This section provides grounding instruction information from the Underwriters' Laboratory UL 1459 Standard for Safety: Telephone Equipment, of September 20, 1993.

An equipment grounding conductor that is not smaller in size than the ungrounded branch-circuit supply conductors is to be installed as part of the cir- cuit that supplies the product or system. Bare, covered, or insulated grounding conductors are acceptable. Individually covered or insulated equipment ground- ing conductors shall have a continuous outer finish that is either green, or green with one or more yellow stripes. The equipment grounding conductor is to be connected to ground at the service equipment.

The attachment-plug receptacles in the vicinity of the product or system are all to be of a grounding type, and the equipment grounding conductors serving these receptacles are to be connected to earth ground at the service equipment.

A supplementary equipment grounding conductor shall be installed between the product or system and ground that is in addition to the equipment grounding conductor in the power supply cord.

The supplementary equipment grounding conductor shall not be smaller in size than the ungrounded branch-circuit supply conductors. The supplementary equipment grounding conductor shall be connected to the product at the terminal provided, and shall be connected to ground in a manner that will retain the ground connection when the product is unplugged from the receptacle. The con- nection to ground of the supplementary equipment grounding conductor shall be in compliance with the rules for terminating bonding jumpers at Part K or Article 250 of the National Electrical Code, ANSI/NFPA 70. Termination of the supple- mentary equipment grounding conductor is permitted to be made to building steel, to a metal electrical raceway system, or to any grounded item that is perma- nently and reliably connected to the electrical service equipment ground.

Bare, covered, or insulated grounding conductors are acceptable. A covered or insulated grounding conductor shall have a continuous outer finish that is either green, or green with one or more yellow stripes.

REAR PANEL

The ATLAS 800PLUS unit is equipped with eight slots in the rear panel to house modules which provide a variety of additional resources and data ports. All slots are functionally identical except slots 7 and 8. These slots also accommodate an optional power supply for redundancy (see Figure 2-1 on page 2-3).

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