Preventing Electrostatic Discharge Damage - Juniper SRX 5800 Installation Instructions Manual

SRX 5800 and SRX 5600 Services Gateway Services Processing Card Installation Instructions
Figure 8: Attaching a Cable to an SPC

Preventing Electrostatic Discharge Damage

Many services gateway hardware components are sensitive to damage from static
electricity. Some components can be impaired by voltages as low as 30 V. You can
easily generate potentially damaging static voltages whenever you handle plastic or
foam packing material or if you move components across plastic or carpets. Observe
the following guidelines to minimize the potential for electrostatic discharge (ESD)
damage, which can cause intermittent or complete component failures:
CAUTION: For safety, periodically check the resistance value of the ESD strap. The
measurement should be in the range of 1 to 10 Mohms.
12
Preventing Electrostatic Discharge Damage
Always use an ESD wrist strap or ankle strap, and verify that it is in direct contact
with your skin.
When handling any component that has been removed from the chassis, verify
that the equipment end of your ESD strap is attached to one of the ESD points
on the chassis, which are shown in Figure 10 on page 13 and
Figure 11 on page 14.
Avoid contact between the component and your clothing. ESD voltages emitted
from clothing can still damage components.
When removing or installing a component, always place it component-side up
on an antistatic surface, in an antistatic card rack, or into an electrostatic bag
(see Figure 9 on page 13). If you are returning a component, place it into an
electrostatic bag before packing it.