Cisco Catalyst IR8140 Heavy Duty Series, Руководство по установке оборудования

Страница: 89 / 114

Step 12 Route your Ethernet cable.
Connecting the Alarm Port
See Figure 35: CPU Module Components, on page 60 for the alarm port location.
Attach the alarm port to an alarm system to monitor software events and errors. The alarm port supports two
bi-directional channels that can be configured as inputs or outputs independently.
The alarm-trigger setting determines when an alarm is sent to the attached alarm system.
• You can connect this port while the router is operating normally.
• If you use an alarm system on your network, connect the alarm port to an alarm system, using an alarm
cable that you provide.
• When connecting this port to an external alarm system, you must use cable glands and thread cables
through the chassis cable ports on the router. See External Connections and Chassis Cable Ports, on page
62 .
• When configuring alarm channel as an input, the alarm input will detect an open or closed external circuit,
such as a relay.
• When configuring alarm as an output, the alarm output requires the user to provide their own external
relay and external pullup resistor in the range of 3V to 60V. The resistor value needs to be strong enough
to energize the relay but weak enough to stay under 100mA when the pullup is forced to 0V.
Procedure to connecting to the alarm port is identical as described in Connecting an Ethernet Cable to the
Router, on page 70 , with the exception that the connector is not RJ45, but 4 pin Micro-Fit. See Alarm Port,
on page 12 for details.
Installing Modules and Antennas
The router supports up to three Universal Interface Modules (UIMs). Each module requires one or two antennas,
which are installed on or near the router. See
Installing Universal Interface Modules (UIMs), on page 43 and
Attaching an Antenna to IR8140H, on page 53 .
Cisco Catalyst IR8140 Heavy Duty Series Router Hardware Installation Guide
73
Connecting the Router
Connecting the Alarm Port