Installation Guide

50 Installing Components and
Overview
The ECN 7000 Series of products is designed to allow you to easily replace an
ECN unit in the field after installation. For ECN units with the backup battery
option, you can also easily replace the battery in the field.
Because an ECN is typically installed in a location that exposes it to weather and
other hazards, you might need to replace ECN units from time to time. In
addition, you might want to replace a working unit with one that includes
additional or different expansion cards to provide additional services for your
customers.
Because the ECN’s cover is not designed to be removed in the field (the cover is
secured with one-way screws), you generally cannot perform in-field service for
an ECN. If an ECN becomes non-operational, you should replace it in the field
with a similarly equipped model to maintain operational service for your
customers. You can return the non-operational ECN to your service center for
maintenance; see Troubleshooting on page 25 for additional information.
Replacing a Pole-Mounted ECN
Important: Before replacing an ECN in the field, visually inspect the unit and
its surroundings to ensure that the unit is not damaged and that it is safe to
handle.
You do not need to reinstall the Pole Mounting Bracket to replace an ECN unit.
To remove a pole-mounted ECN:
1. If possible, use the COS system software to shut down the unit remotely,
before beginning field replacement.
2. Remove all network connections from the bottom of the unit.
3. Remove the power connection from the unit.
4. Remove the screws at the bottom of the unit. These screws will remain
attached to the ECN.
5. Lift the ECN from the Pole Mounting Bracket.
6. Attach a carabiner hook to the ECN carry loop to safely transport it to
the ground.
To install a replacement pole-mounted ECN:
1. Attach the ECN to the Pole Mounting Bracket, as described in Attach
ECN to Pole Mounting Bracket on page 30.
2. Secure the ECN to the Pole Mounting Bracket using the screws at the
bottom of the unit, as described in Secure ECN to Pole Mounting Bracket
on page 31.
3. Connect the ECN to power and to the network, as described in Connect
the ECN to Power and the Network on page 32.
4. Verify successful installation, as described in Verifying Successful
Installation on page 33.