Mx104 Alarm Contact Port Overview; Figure 4: Front View Of The Mx104 Router - Juniper MX104 Hardware Manual

MX104 3D Universal Edge Router Hardware Guide
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MX104 Alarm Contact Port Overview

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Figure 4: Front View of the MX104 Router

1 2
15 14
1— Alarm input and output contacts
2— Alarm LEDs
3— 10-Gigabit Ethernet SFP+ ports
4— Online/offline LED
5— System status LED
6— External reference clocking port
7— Time-of-day (ToD) port
8—1-PPS and 10-MHz GPS input and output
ports
MX104 3D Universal Edge Router Overview on page 3
MX104 Port and Interface Numbering on page 5
Protocols and Applications Supported by MX104 Routers on page 27
The MX104 router has four external alarm contacts (also known as potential free contacts)
for connecting the router to external alarm devices. The port labeled
D-type connector. The external alarm contact has 15 pins that accept a single core wire
from external alarm devices. A DE-15 alarm cable is required to connect the MX104 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
3 4 5 6
9— ESD point
10— Grounding terminals
11— Fan tray
12— MIC slots 0/1 and 1/1
13— Routing Engines
14— Power supplies (AC or DC)
15— MIC slots 0/0 and 1/0
7 8 9 10
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uses a 15-pin
ALARM
Copyright © 2014, Juniper Networks, Inc.
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