Juniper ACX1000 Hardware Manual page 115

Related
Documentation
Connecting the ACX1000 or ACX1100 Router to an External Alarm-Reporting Device
Related
Documentation
Copyright © 2017, Juniper Networks, Inc.
Installing and Connecting an ACX1000 or ACX1100 Router Overview on page 79
General Site Guidelines on page 46
Management Port Connector Pinout Information for ACX Series Routers on page 73
Initially Configuring the ACX1000 or ACX1100 Router on page 103
To connect the router to external alarm-reporting devices, attach wires to the
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
which is not provided. Use the gauge of wire appropriate for the external device you are
connecting.
To connect an external device to an alarm relay contact:
Prepare the required length of wire with gauge between 8 AWG and 14 AWG (0.08
1.
2
and 2.08 mm .
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis.
While the terminal block is not plugged into the relay contact, use a 2.5-mm flat-blade
3.
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.
Orient the terminal block according to the labels to the left of the appropriate relay
4.
contact ( NC means "normally closed,
open").
Plug the terminal block into the relay contact and use a 2.5-mm flat-blade screwdriver
5.
to tighten the screws on the face of the block.
Attach the other end of the wires to the external device.
6.
If attaching a reporting device for the other kind of alarm, repeat the procedure.
Alarm Contact Port on ACX1000 and ACX1100 Routers on page 27
Alarm Contact Port Pinouts for ACX1000 and ACX1100 Routers on page 71
Chapter 18: Connecting the Router to External Devices
C means "common," and (
ALARM
2
),
NO means "normally
97