Alcatel-Lucent 7750 SR-a4, Руководство по установке, Страница: 204 / 232

Removing and Replacing an MDA-a or MDA-aXP Card
204 7750 SR-a4 and SR-a8 Installation Guide
Removing and Replacing an MDA-a or MDA-aXP
Card
The procedures in this section apply to the MDA-a and MDA-aXP cards which are supported
on the 7750 SR-a4 and 7750 SR-a8 and described in
MDA-a Cards on page 36 . The term
MDA-a is used generically in this chapter to refer to MDA-a and MDA-aXP cards.
The illustrations in this section show the 7750 SR-a4 chassis, but also pertain to the 7750
SR-a8 chassis.
This section includes information about:
• Warnings and Notes on page 204
• Changing the MDA-a Configuration on page 205
• Removing an MDA-a on page 206
• Replacing an MDA-a on page 207
Warnings and Notes
Danger: Invisible laser radiation can be emitted from the aperture ports of an optical module
when no cable is connected. Avoid exposure and do not stare into open apertures.
Warning:
• Do not install equipment that appears to be damaged.
• Impedance panels are required in all empty slots to prevent excess dust accumulation
and to help control airflow and electromagnetic interference. Impedance panels do not
have board components or connector pins.
• Electrostatic discharge (ESD) damage can occur if components are mishandled.
Always wear an ESD-preventive wrist or ankle strap and always connect an ESD strap
to the grounding plug on the front of the chassis.
• Always place components on an antistatic surface.