Adtran TRC6410L2X Manual Do Utilizador

Página de 130
TRACER 6000 Series Integrated System Manual
Section 4  Network Turnup Procedure
612806420L1-1D
Copyright © 2005 ADTRAN, Inc.
49
5.
GROUNDING INSTRUCTIONS
The following paragraphs provide grounding instruction information from the Underwriters’ Laboratory 
UL60950 Standard for Safety of Information Technology Equipment Including Electrical Business 
Equipment, with revisions dated March 15, 2002.
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 circuit that supplies the product or system. Bare, covered, or 
insulated grounding conductors are acceptable. Individually covered or insulated equipment grounding 
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 connection 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 
supplementary equipment grounding conductor is permitted to be made to building steel, to a metal electrical 
raceway system, or to any grounded item that is permanently and reliably connected to the electrical service 
equipment ground.
The supplemental grounding conductor shall be connected to the equipment using a number 8 ring terminal 
and should be fastened to the grounding lug provided on the rear panel of the equipment. The ring terminal 
should be installed using the appropriate crimping tool (AMP P/N 59250 T-EAD Crimping Tool or 
equivalent).
6.
SUPPLYING POWER TO THE UNIT
The TRACER 64x0 can operate from an LPS or Class 2 power source between 21 and 60 VDC and a 
minimum output current rating of 1.2 A, with either polarity referenced to ground. Power supplies should be 
able to provide up to 25 W at the selected voltage and be suitable for operation at a 50° C ambient 
temperature. A dual pin terminal plug accepts power at the rear panel of the unit, providing a voltage (
+/–
and ground (
GND
) reference point.
The supplemental equipment grounding terminal is located on the rear panel of the
 
TRACER 64x0
.
Power to the TRACER 64x0 DC system must be from a reliably grounded 
 
21 to 60 VDC UL Listed Power Supply with outputs meeting LPS requirements.
A readily accessible disconnect device that is suitably approved and rated shall be 
incorporated in the field wiring.