Installing A Line Card In An Ex9253 Switch - Juniper EX9253 Hardware Manual

EX9253-6Q12C-M Line Card | 41

Installing a Line Card in an EX9253 Switch

Before you begin to install a line card:
• Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD)
Prevention of Electrostatic Discharge Damage
damage (see
• If there are any transceivers installed in the line card, remove them before you install the line card.
For instructions on removing transceivers, see
Transceiver .
• Ensure that you know how to handle and store the line card (see
and maintain line card cables (see
Ensure that you have the following parts and tools available to install a line card in the switch:
• ESD grounding strap
NOTE: A fully configured line card can weigh up to 18.35 lb (8.3 kg). Be prepared to support the
full weight.
EX9253 switches have field-replaceable unit (FRU) line cards that can be installed in the line card slots
on the front of the switch chassis. The line cards are hot-insertable and hot-removable: You can remove
and replace them without powering off the switch or disrupting switch functions. However, we
recommend that you take them offline before removing them.
To install a line card in the switch (see
1. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end
of the strap to the ESD point on the switch.
2. If the line card slot has a cover panel on it, rotate the ejector handles simultaneously
counterclockwise to unseat the cover panel.
3. Grasp the ejector handles, and slide the cover panel out of the chassis. Save the cover panel for later
use.
4. Taking care not to touch line card components, pins, leads, or solder connections, remove the line
card from its bag.
Remove a Transceiver
Maintaining Line Card Cables
Figure 56 on page 145):
).
Remove a QSFP28
or
Handling and Storing Line Cards
).
143
)