User manual

Electrical Installation and Cabling
Ground Connection
5-6 July 2004 Wide Bank 28 DS3 - Release 2.4
Ground Connection
When the Wide Bank is connected to a power source other than the Carrier Access Power Converter/
Battery Charger, a separate ground wire must be connected to a Common Bonding Network (CBN). A
recommended method to make this connection is shown below.
CAUTION! CHASSIS MUST BE PROPERLY GROUNDED FOR COMPLIANCE WITH
NEBS 1089 EMI/EMC
AND FCC REQUIREMENT PART 15, FOR POWER GROUNDING
AND TO PREVENT RADIO FREQUENCY INTERFERENCE WITH OTHER EQUIPMENT.
1. Measure and cut enough wire to connect from building ground to grounding lug on the
connector panel of the Wide Bank. Use #14 to #6 AWG insulated copper wire, as required by
grounding practice.
2. Route wire from building ground to Wide Bank connector panel. Bend wire to position it near
chassis ground studs, as shown in the figure.
3. Obtain a ground lug with crimp or compression clamp for attaching ground wire. Do not use
solder, quick-connect or friction-fit connectors.
4. Strip enough insulation off wire end to fit inside the ground lug, flush with front of wire
compression clamp.
5. Apply an anti-oxidant compound to the lug’s crimp or pressure connector and to the chassis
bonding surface.
6. Insert ground wire into ground lug and clamp wire securely using crimp tool or compression
tool.
7. Remove lug nuts and lock washers (included) from chassis ground studs.
8. Position ground lug over chassis ground studs and install a star or lock washer.
9. Attach lug nuts and tighten to 0.8 foot-pound (1.086 Nm).
Figure 5-3 Ground Connections
DS1 Cable
Drain Wires
Earth
Ground
Wire
Chassis
Ground Studs
(0.6" Spacing)
Drain Wire
Ground Stud
Copper Ground Lug
with Compression
Clamp