Installation Guide

Table Of Contents

SAR-Hm and SAR-Hmc Chassis Installation Guide Mandatory Regulations

Use subject to agreed restrictions on disclosure and use.

The risk of damage to an ESD-sensitive device is reduced considerably after

assembly in a circuit designed to protect sensitive components; however, the

following basic precautions should be taken to reduce ESD to harmless levels.

• Handle all units as if they contained ESD-sensitive devices unless they are

known not to contain ESD-sensitive parts.

• Wear an anti-static ESD strap on your wrist or heel prior to and while touching

or handling units containing ESD-sensitive devices.

• For surfaces with resistance to ground in excess of 100 MΩ, such as ordinary

tile, either cover them with properly grounded static dissipative runners or wax

them with a static dissipative wax.

• Store (even temporarily), pack, and ship units in anti-static bags or containers.

• Do not handle units and components unnecessarily.

• Do not use synthetic bristled brushes or acid brushes to clean units.

• Handle failed units with the same precautions as working units.

2.4.1.1 ESD Grounding

When a 7705 SAR-Hm or 7705 SAR-Hmc chassis is properly installed in a grounded

equipment rack, the rack provides ESD grounding for the chassis. Before a

7705 SAR-Hm or 7705 SAR-Hmc chassis is installed, connect the ESD wrist strap to

a grounded rack or other ground point. After the chassis is installed in a grounded

rack or cabinet, connect the anti-static wrist strap to the ground point on the front of

the chassis, as shown in Figure 2 and Figure 3.

Warning:

• ESD damage can occur if components are mishandled. The 7705 SAR-Hm and

7705 SAR-Hmc chassis must be properly grounded. The grounding point is located at

the bottom of the chassis faceplate.

• Always wear an ESD-preventive wrist or ankle strap connected to a nearby ground

point that is connected to the site grounding point when working on the 7705 SAR-Hm,

7705 SAR-Hmc, or the 35W High Voltage Power Supply.