Juniper QFX5100, Руководство по оборудованию

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Installing an Expansion Module in a QFX5100 Switch
The QFX5100-24Q product SKU allows up to two QFX-EM-4Q expansion modules to
be added to the port panel to increase port density. Each QFX-EM-4Q expansion module
adds four QSFP+ ports, which are hot-removable and hot-insertable field-replaceable
units (FRUs). You can remove and replace these modules without powering off the switch
or disrupting switch functions.
NOTE: When an expansion module is installed in the switch or an existing
expansion module is replaced with another expansion module, the switch
detects the ports on the expansion module. The switch creates the required
interfaces when transceivers are installed in these ports.
Before you begin installing an expansion module in the switch, ensure that you have taken
the necessary precautions to prevent electrostatic discharge (ESD) damage (see
“Prevention of Electrostatic Discharge Damage” on page 142 ).
Ensure that you have the following parts and tools available:
•
ESD grounding strap. If a grounding strap is not available, follow the alternative
grounding method described in Step 1 of the following procedure.
• Phillips (+) screwdriver, number 2
To install an expansion module in a QFX5100-24Q switch (see Figure 53 on page 199 ):
1.
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
point on the chassis.
If a grounding strap is not available, hold the expansion module in its antistatic bag
in one hand and touch the exposed metallic part of the switch with the other hand to
ground yourself and the component.
2.
If the module slot has a cover panel on it, remove the cover panel by using the
screwdriver and save it for later use.
3.
Taking care not to touch module components, pins, leads, or solder connections,
remove the expansion module from its bag.
4.
Loosen the captive screws on the front faceplate of the expansion module by using
your fingers. If you are unable to loosen the captive screws by using your fingers, use
the screwdriver.
5.
Using both hands, place the expansion module in the empty slot and slide it in gently
until it is fully seated.
Copyright © 2014, Juniper Networks, Inc. 198
QFX5100 Switch Hardware Guide