Juniper PTX Series - Connecting the PTX5000 Packet Transport Switch to an External Clocking Device; Figure 42: Connecting to the Host;Ethernet Port on the Control Board

Figure 42: Connecting to the Host/Ethernet Port on the Control Board
g006134
1
1— Host/Ethernet port
Related
Documentation
PTX5000 Control Board Description on page 22•
• PTX5000 Management Interface Cable Specifications on page 271
• RJ-45 Connector Pinouts for the PTX5000 Management HOST/ETHERNET Port on
page 272
Connecting the PTX5000 Packet Transport Switch to an External Clocking Device
To connect the packet transport switch to one or two external clocking devices, connect
a cable with RJ-48 connectors to the BITS A or BITS B port on the CCG.
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. Plug one end of the cable into the BITS A port on the CCG.
3. Plug the other end of the cable into the T1 external clocking device.
4. Repeat the procedure for the BITS B port on the CCG.
5. Verify that the LINK LED for the port is lit steadily green and that the FAULT LED is not
lit.
6. Configure the port. See the synchronization statement for PTX Series Packet Transport
Switches in the Junos OS System Basics Configuration Guide.
7. Issue the show chassis synchronization extensive command to check the status of the
port.
user@host> show chassis synchronization extensive
Clock Synchronization Status :
Clock module on CCG 0
Current state : Online - Master
Validation interval : 103 seconds
Signal type : t1
Switching mode : non-revertive
Line termination : no-y-cable
Transmitter : disabled
Current clock state : locked to gps-0-10mhz
Selected for : 10 seconds
Selected since : 2011-09-26 17:04:24 PDT
Deviation (in ppm) : -0.01
Last deviation (in ppm): -0.01
91Copyright © 2012, Juniper Networks, Inc.
Chapter 10: Connecting the PTX5000 Packet Transport Switch to External Devices