Rane HAL1x Design Guide - Page 83

HAL SYSTEM DESIGN GUIDE 1. Line Output LEDs Provide information about EXP3x analog outputs. The numbers correspond to the line output ports on the rear panel. These LEDs provide information on the following: l Overload LED (red) - indicates that the line output is experiencing a signal overload l Signal LED (green) - indicates the presence of an audio signal on the line output 2. 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: l Overload LED (red)-indicates that the channel is experiencing a signal overload l Signal LED (green)-indicates the presence of an audio signal on this channel l Enabled LED (yellow)-indicates the availability of the associated audio channel. If a RAD is connected 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. 3. Digital Remote LEDs Indicate which Digital Remotes are enabled. Each numbered LED corresponds to the Digital Remote port with the same number. If a Digital Remote is connected on a port but its Enabled LED is off, there is likely a problem with the shielded CAT 5e connection or with the Digital Remote itself. If an Enabled LED is flashing, it indicates that the physical Digital Remote model does not match the Digital Remote model specified for this port in the HAL configuration. 4. Expansion Bus LED If lit, indicates that the Expansion Unit is properly connected to the HAL. If Expansion Units are properly connected to one another and to the HAL port yet this status LED remains dark, there is likely a problem with the connection between the HAL or last Expansions Unit in the chain where this LED is lit and the first Expansion Unit in the chain where this LED remains dark. 5. Locate and Power LEDs The Locate LED, which flashes when toggled from within the Halogen software, helps identify a specific EXP - useful if you have more than one EXP installed. The Power LED lights when adequate power is applied to the unit. 79