Connecting The Acx4000 Router To An External Alarm-Reporting Device - Juniper ACX4000 Hardware Manual

5. Configure the port. See
6. Issue the
show chassis synchronization
user@host> show chassis synchronization
Clock Synchronization Status :
Clock module on CB 0
Current state
Current clock state
Selected for
Selected since
Deviation (in ppm)
Last deviation (in ppm): +0.00
Clock Synchronization Status :
Clock module on CB 1
Current state
Current clock state
Selected for
Selected since

Connecting the ACX4000 Router to an External Alarm-Reporting Device

To connect the router to external alarm-reporting devices, attach wires to the ALARM relay contacts on
the front panel of the router. A system condition that triggers the red or yellow alarm on the router also
activates the corresponding alarm relay contact.
The terminal blocks that plug into the alarm relay contacts are supplied with the router. They accept
wire of any gauge between 20 AWG and 14 AWG (0.52 and 2.08 mm
gauge of wire appropriate for the external device you are connecting.
To connect an external device to an alarm relay contact:
1. Prepare the required length of wire with gauge between 8 AWG and 14 AWG (0.08 and 2.08 mm
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
3. While the terminal block is not plugged into the relay contact, use a 2.5-mm flat-blade screwdriver to
loosen the small screws on its side. With the small screws on its side facing left, insert wires into the
slots in the front of the block based on the wiring for the external device. Tighten the screws to
secure the wire.
Configuring External Clock Synchronization for ACX Series
command to check the status of the port.
: master
: internal
: 13 days, 23 hours, 15 minutes, 17 seconds
: 2012-10-29 18:28:35 EDT
: +0.00
: backup
: locked to master CB
: 13 days, 23 hours, 14 minutes, 23 seconds
: 2012-10-29 18:29:29 EDT
Routers.
2
), which is not provided. Use the
111
2
.