Installation guide

Use one of these jacks to connect the EXP1 to the HAL, using a FireWire

cable. Use the other jack to

connect the EXP1 to another Expansion Unit, thus forming a daisy chain.

The Link LED lights when communication is occurring between the EXP1 and HAL or between the

EXP1 and another expansion unit in the daisy chain.

5. Remote Audio Device Ports

Use these ports to connect each RAD to the EXP1 via a standard shielded CAT 5e cable. You must use a

standard Ethernet cable for this connection. There are 8 RAD ports on an EXP1 device.

Front Panel

1. Remote Audio Devices LEDs

Provide information about the RAD audio channels. The numbers 1 through 8 at the top of the front panel

correspond to the RAD ports 1 through 8 on the back of the EXP1. For example, the LEDs for number 1

provide information about the RAD connected on port 1.

Under each RAD number are LEDs for four audio channels, two input and two output. These represent

the maximum number of channels a RAD is capable of transporting. However, not all RAD models use all

four channels. For example, the RAD1 model provides two microphone inputs, so for that model, only the

two columns of indicators labeled IN would be active.

These LEDs provide information on the following:

Overload LED (red)–indicates that the channel is experiencing a signal overload

Signal LED (green)–indicates the presence of an audio signal on this channel

Enabled LED (yellow)–indicates the availability of the associated audio channel. If a RAD is con-

nected on this port and all Enabled lights are off, this indicates a problem with the shielded CAT

5e connection or with the RAD. If the Enabled LEDs are flashing, this indicates that the physical

RAD model does not match the RAD model specified for this port in the HAL configuration.

2. Expansion Bus LED

If lit, indicates that the Expansion Unit is properly connected to the HAL. If all Expansion Units are prop-

erly connected to one another and to the HAL port yet this status LED remains dark, there is likely a prob-

lem with the connection.

3. Locate and Power LEDs

The Locate LED, which flashes when toggled from within the Halogen software, helps identify a specific

EXP1 — useful if you have more than one EXP1 installed. The Power LED lights when adequate power

is applied to the unit.

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.

HAL SYSTEM DESIGN GUIDE