Installation guide

Use these ports to connect analog line output devices, such as amplifiers or powered speakers.

13. Line-Plus Input ports

Use these ports to connect balanced or unbalanced line input devices. When configured in Halogen for

balanced, each input is +4 dBu balanced. When configured for unbalanced, each input is -10 dBV unbal-

anced, with left and right channels summed to a single mono input.

Front Panel Description

1. Mic/Line Input LEDs

Provides status information about mic/line analog inputs connected to the HAL. The numbers correspond

to the mic/line input ports on the rear panel.

These LEDs provide information on the following:

Overload LED (red) – indicates that the mic/line input is experiencing a signal overload

Signal LED (green) – indicates the presence of an audio signal on the mic/line input

2. Line Input LEDs

Provides status information about line analog inputs connected to the HAL. The numbers correspond to

the line input ports on the rear panel.

These LEDs provide information on the following:

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

Signal LED (green) – indicates the presence of an audio signal on the line input

3. Line Output LEDs

Provides information about HAL analog outputs. The numbers correspond to the line output ports on the

rear panel.

These LEDs provide information on the following:

HAL SYSTEM DESIGN GUIDE