Installation guide
HAL1 Expansion Unit (Discontinued)
A single HAL1device contains a fixed number of inputs, outputs, RAD ports, and so on. If you purchased a
HAL1 but you need more than four RAD ports, you can attach the EXP1 Expansion Unit to your HAL1 and sud-
denly have eight more RAD ports in your system. Remember that you can also connect DRs to RAD ports, so you
could use the EXP1 to expand your DR connections as well.
The EXP1 Expansion Unit connects to a HAL1 via a FireWire
1
cable, which is similar to a USB cable and does
not require IP addresses. The only limitation when using FireWire is its maximum cable length of 15 feet. Given
that the purpose of the HAL1 Expansion Units is to expand the host device capabilities within a single rack room,
this FireWire distance limit should not pose a problem.
1
A form of connectivity similar to USB, meant to connect peripherals such as MP3 Players and digital cameras to
the computer. Legacy HAL Systems used FireWire to connect EXP1 units to the HAL1 device. FireWire operates
around 30 times faster than a USB 1.1 connection. FireWire is technically known as IEEE-1394.
CHAPTER 2: Introduction to the HAL System
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