Installation guide

8620-A2-GN20-50 June 2004 2-1
2
Installation
Preinstallation Considerations
Consider the following before performing installation of the 8620 BAC:
 Installation Site
Your installation site should be well ventilated, clean, and free of
environmental extremes.
— If you are installing the 8620 BAC in a central office (CO) rack, make sure
there is a clearance of 2 to 3 feet (0.6 to 1.0 m) at the front of the rack to
allow access for the installation of the chassis, circuit cards, and cables.
— If you intend to use the rear cable connectors, allow for sufficient
clearance at the rear of the chassis for cabling.
— In any installation, leave a clearance of at least 3.5 inches (9 cm) on both
sides of the chassis for airflow.
 Power
The AC power version requires a power source of 100–240 VAC (nominal) at
50–60 Hz; maximum current draw is 4 A at 120 VAC.
The DC power version requires a 48 VDC power source (48 VDC, nominal;
maximum current draw is 5 A). The size of power source wires must be
between 14 AWG and 18 AWG, and can be either solid or stranded. However,
14 AWG stranded wire is recommended.
 Grounding
A ground lug is located at the lower center of the cover at the rear. It accepts
14 AWG wire.
A noninsulated banana jack is located on the left front of the unit to provide a
ground for an ESD wrist strap.