Ptx5000 Centralized Clock Generator Description; Ccg Slots; Ccg Function; Ccg Components - Juniper PTX5000 Hardware Manual

Table 11: Power Supply Module LEDs on the Craft Interface (continued)
Color State
Red On steadily
– Off
Related
Documentation

PTX5000 Centralized Clock Generator Description

CCG Slots

CCG Function

CCG Components

Copyright © 2017, Juniper Networks, Inc.
Description for normal capacity PDU/PSMs
The PSM has failed.
The PSM is offline or absent.
PTX5000 Hardware Component Overview on page 5
PTX5000 Craft Interface Description on page 16
CCG Slots on page 23
CCG Function on page 23
CCG Components on page 23
The Centralized Clock Generators (CCGs) are installed into the upper rear of the chassis
in the slots labeled and
CCG0
transport router configuration, but up to two CCGs can be installed to provide redundancy.
A nonredundant CCG is hot-pluggable. For redundant CCGs, the master CCG is
hot-pluggable. The backup CCG is hot-removable and hot-insertable if the master CCG
is functioning. Removing the backup CCG does not affect the functioning of the packet
transport router. Taking the master CCG offline might result in a brief loss of the clock
lock while the backup CCG becomes the master.
CCGs provide a 19.44-MHz Stratum 3E clock signal for the Ethernet network interfaces
on the packet transport router.
Each CCG (see Figure 10 on page
19.44-MHz Stratum 3E clock.
Field-programmable gate array (FPGA) that performs multiplexing of clock sources.
Chapter 2: Chassis Components and Descriptions
Description for high capacity PDU/PSMs
At least one PSM is not working. Additional status is
available on the LCD, CLI, and PSM LEDs on the PSM.
The PSMs are offline or absent.
. One CCG is shipped as part of the standard packet
CCG1
24) consists of the following components:
23