Maximite & Expanders in the Enclosure.

The Expander was specifically made to fit this particular enclosure as I had easy access to them,

This enclosure and power supply are made by "Inner Range" and sold through "Central Security Distribution".

The IR catalog that includes these enclosures can be downloaded from here

(Note: all these photos are ov the V1 Expander. V2 is the same size and layout)

(Note2: The enclosure, battery or associated hardware is not included in the expander kit)

This is the chosen enclosure with the Maximite, Battery, Power Suppyl and 2 Expanders (20 channels)

Shown here with the V1 interface cable attached (Note: the cross over wiring due to an error in the original published circuit which has been rectified in V2)

Shown with 2 expanders stacked to get all 20 channels.

The 2A battery backed power supply that is made by "Inner Range" for this enclosure.

This supply also has "AC Fail & Low Battery" outputs that can be interfaced directly into the maximite (via an expander channel)

The supply also has a "Battery Test" input that drops the regulated voltage allowing the battery voltage to be measured so a failed battery can be detected before it is needed during a power outage. This can also be driven by the Maximite, allowing a fully backed up and monitored power system to be achieved.

The whole enclosure is powered by a 1.5A 16VAC Alarm panel plug pack.

Note: when using the 1.5A plug pack you can obviously only draw 1.5A Max even though the power supply can deliver up to 2A with a bigger transformer. In this case the power supply should be setup in 1A mode.

The maximite.

It's a little bit of a squeeze to fit it in with the power supply mounted in it's original position.

Note the insulated heatsink on the regulators, as the supply outputs 13.5V

Also the I/O connector has been replaced with a straight one to allow easier connection and also to make the board pinouts match the connector. With the right angle connector, the pin numbering is reversed between the connector and the board. This needs to be understood and allowed for when making the interface cable that connects the expanders.

The fused terminal block is also part of the enclosure.

The cutout for the VGA socket is a standard part of the enclosure.

The 2 Mini Din sockets are for USB and PS2 Keyboard, and these were drilled by me.

(Note: these sockets are not included in the kit)

The rear of the cabinet, showing how the cable entry could work when mounted to a hollow wall.

(Note: the 4 screw heads that are the Maximite mount points that need to be drilled).

The case with its lid on.

(The pliers are for size comparison and to give the camera something to focus on)

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