Hardware installation

These instructions will help you install the HawkEYE PLUS and connect associated devices. This is a general installation procedure and you must consult your local IT and electrical specialists to ensure that the HawkEYE PLUS is installed correctly.

Network connector

Connect a network cable from the RJ45 socket on the bcak of the HawkEYE PLUS to your networking infrastructure. Then work with you internal IT network specialist to ensure that the routing is correct for you to be able to connect to the Pi from your required network.

WARNING!  It is not recommended to connect the Pi directly to the Internet unless you have performed network security hardening on it first.

Power and relay connectors

Included with the HawkEYE PLUS are 3 Amphenol female sockets which connect to the 3 relay connectors on the rear of the device.

WARNING!   For High Voltage AC - The connections to the female relay sockets must be constructed by a registered Electrician. Also the HawkEYE PLUS must be connected to the local electrical earth via the available earth connection point.

It is recommended that you complete the wiring of the 3 Relay connectors before starting the installation of the HawkEYE PLUS in the rack to ensure that you have enough cabling to reach.

The wiring connection for the 3 relay connectors are the same. The Relays are Normally Open and are only Closed when the mains electricity frequency drops below the defined threshold. The relay connector has 4 pins but only 2 are used.

At the same time it is recommended that you check the cable run for the AC power adapter. If necessary a qualified electrician can extend the length of the cable between the mains supply and HawkEYE PLUS.

IMPORTANT: It is essential that the power supply for the HawkEYE PLUS is not connected to any form of UPS. It must be connected directly to the mains electricity supply to ensure that the frequency is being monitored correctly.

The image opposite depicts attaching the un-assembled relay plug to one of the relay sockets on the back of the HawkEYE PLUS.

You must put the wires into ports 1 and 3. These are the same for all three relay connectors on the HawkEYE PLUS.. Note the maximum voltages and Amperage limits on the back label of the HawkEYE PLUS.

Earth connection

While the earth connection is only necessary when you will switch high voltage through the relays, it is still good practice to install the connection to earth anyway. This ensures that any failure in the devices connected to the relays cannot cause the case of the HawkEYE PLUS to start conducting High Voltage to anyone or anything close to it.

While this can be mitigated to some degree by placing the HawkEYE PLUS in an earthed rack, there is still a risk that the rack mounting bolts do not penetrate through the paint of the HawkEYE PLUS case.