Connecting a T1 or E1 External Clocking Device to the MX104 Router
The MX104 router contains an external building-integrated timing supply (BITS) port
labeled EXT REF CLOCK on the front panel of the router.
To connect the router to a BITS T1 or E1 external clocking device:
1. Attach an electrostatic discharge (ESD) grounding trap on your bare wrist, and connect
the strap to one of the ESD points on the chassis.
2. Plug one end of the RJ-45 cable into the internal clock port on the craft interface.
3. Plug the other end of the RJ-45 cable into the T1 or E1 external clocking device.
4. Verify that the LEDs for the external clock input are lit steadily green.
5. Configure the port. See Configuring Clock Synchronization Interface on MX Series Routers.
Connecting a Time-of-Day Device to the MX104 Router
A time-of-day port labeled TOD on the front panel of the router allows you to connect
external timing devices such as the TCA6500 timing client.
To connect the router to a TOD external timing device:
1. Attach an electrostatic discharge (ESD) grounding trap on your bare wrist, and connect
the strap to one of the ESD points on the chassis.
2. Plug one end of the RJ-45 cable into the TOD port on the front panel.
3. Plug the other end of the RJ-45 cable into the TOD timing device.
4. Verify that the LEDs for the TOD port on the router are lit steadily green.
5. Configure the port. See Configuring Clock Synchronization Interface on MX Series Routers.
Related
Documentation
MX104 Clocking and Timing Ports Overview on page 17•
• MX104 Time of Day Port Specifications on page 90
Connecting the MX104 Router to an External Alarm-Reporting Device
Ensure that you have the following parts and tools available:
•
Electrostatic discharge (ESD) grounding strap
•
2.5-mm flat-blade (–) screwdriver
Copyright © 2017, Juniper Networks, Inc.124
MX104 3D Universal Edge Router Hardware Guide
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