Chassis Components And Descriptions; Alarm Contact Port On Acx1000 And Acx1100 Routers - Juniper ACX1000 Hardware Manual

CHAPTER 2

Chassis Components and Descriptions

Alarm Contact Port on ACX1000 and ACX1100 Routers

Copyright © 2017, Juniper Networks, Inc.
Alarm Contact Port on ACX1000 and ACX1100 Routers on page 27
Clocking Ports on the ACX1000 and ACX1100 Router on page 29
Front Panel of an ACX1000 Router on page 30
Front Panel of an ACX1100 Router on page 31
Uplink Ports on ACX1000 and ACX1100 Routers on page 32
LEDs on ACX1000 and ACX1100 Routers on page 35
The ACX1000 and ACX1100 router has four external alarm contacts (also known as
potential free contacts) for connecting the router to external alarm devices. The port
labeled ALARM uses a 15-pin D-type connector. The external alarm contact has 15 pins
that accept a single core wire from external alarm devices. A DE15 alarm cable is required
to connect the ACX1000 and ACX1100 router to external alarm devices. Use the gauge
wire appropriate for the external device that you are connecting.
Whenever a system condition triggers an alarm, the alarm relay contacts are activated,
which in turn activates the external alarm devices. The alarm setting is open or closed.
You can connect and configure two output alarms and four input alarms. Two additional
output alarms are reserved and are used to indicate major and minor system alarms.
Each output and input alarm has two contacts for connecting the router to external alarm
devices. Contact 1 of each alarm can be configured as Normally Open [NO] or Normally
Closed [NC] through the CLI. Contact 2 of each alarm functions as a reference [REF] or
negative potential terminal for Contact 1 of the corresponding alarm and provides a
current path for external alarm devices.
the alarm contacts.
Table 6 on page 28 describes the functions of
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