Juniper PTX10003-160C, Руководство по оборудованию

Страница: 73 / 225

General Site Guidelines
Efficient device operation requires proper site planning and maintenance and proper layout of the equipment,
rack or cabinet (if used), and wiring closet.
To plan and create an acceptable operating environment for your device and prevent environmentally
caused equipment failures:
•
Keep the area around the chassis free from dust and conductive material, such as metal flakes.
•
Follow prescribed airflow guidelines to ensure that the cooling system functions properly and that
exhaust from other equipment does not blow into the intake vents of the device.
•
Follow the prescribed electrostatic discharge (ESD) prevention procedures to prevent damaging the
equipment. Static discharge can cause components to fail completely or intermittently over time.
•
Install the device in a secure area, so that only authorized personnel can access the device.
PTX10003 Chassis Grounding Cable and Lug Specifications
For installations that require a separate grounding conductor to the chassis, the PTX10003 must be
adequately grounded before power is connected to ensure proper operation and to meet safety and
electromagnetic interference (EMI) requirements. To ground a PTX10003, connect a grounding cable to
earth ground and then attach it to the chassis grounding point.
WARNING: The device is a pluggable type A equipment installed in a restricted-access
location. It has a separate protective earthing terminal provided on the chassis in addition
to the grounding pin of the power supply cord. This separate protective earthing terminal
must be permanently connected to earth ground for installations that require a separate
grounding conductor to the chassis.
WARNING: To comply with GR-1089 requirements, all intrabuilding copper cabling used
for transceiver ports must be shielded and grounded at both ends.
CAUTION: Before device installation begins, a licensed electrician must attach a cable
lug to the grounding cables that you supply. See “Connecting the PTX10003 to Ground”
on page 110 . A cable with an incorrectly attached lug can damage the PTX10003.
74