Juniper PTX5000, Hardware Manual

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NOTE: Ensure that you fasten at least two rows of screws (four screws on each extension
bracket assembly) for required strength to hold the extension plates.
3. See "Installing the Cable Management Comb Assembly with Extension" on page 257 to install the
cable management comb assembly.
CAUTION: The maximum torque that may be applied to these screws is 9.0 lb-in.
(1.0 Nm).
Installing the Cable Management Comb Assembly Without Extension
NOTE: You can use only the comb assembly without the extension, if the rear edge of the
PTX5000 chassis is aligned with the four-post rack. In such a scenario, only the comb assembly is
sufficient to route the cables.
To install the comb assembly on the four-post rack:
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
2. Unfasten the four screws attaching the comb assembly to the extension manager by using a Phillips
(+) screwdriver and separate the comb assembly from the extension.
3. Align the comb assembly for one PDU against the rack vertically. Move the comb assembly up or
down so that the mounting holes are aligned to the mounting holes on the rack.
4. Secure the comb assembly to the rack by using the four screws that were removed. See Figure 125
on page 262 .
NOTE: If the provided screws are not compatible with your rack, you might have to use
different types of screws (such as metric screws).
CAUTION: The maximum torque that may be applied to the provided number 12
screws is 30.0 lb-in. (3.4 Nm).
5. Similarly, secure the comb assembly to the rack for the other PDU.
See "Connecting Power to the PTX5000 High Capacity DC PDUs" on page 270 to connect the power
cables.
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