Task 4: Installing and Connecting HAL Expansion Units

Installing and connecting an EXP device is simple. Just as with the HAL device, you can rely on the EXP's LED indicators to provide basic device and connection status information. The first EXP that you install connects directly to the HAL. Subsequent EXP devices can be installed but are then daisy-chained together. You need shielded CAT 5e or better cables to connect these devices.

note: The HAL1x supports a maximum of thirty-two EXP devices.

To install a single EXP device:

1. Attach the EXP device to the audio rack in its designated location.
2. Connect the EXP device to the HAL. You need a shielded CAT 5e cable for this connection, with a maximum cable length of 100 meters (300 feet). To connect the EXP to the HAL, plug one end of the CAT 5e cable into the Expansion Bus on the HAL. Plug the other end of the cable into one of the Expansion Bus slots on the EXP. You can use either one of the slots:

When HAL recognizes the EXP device, the Link light on the EXP turns green.

To install more than one EXP device:

1. Install the first EXP as described above, connecting it directly to the HAL.
2. Attach the remaining EXP devices to the audio rack in their designated locations.

3. Daisy chain the EXP devices together. In other words, connect the second EXP device to the EXP that is connected to the HAL. To do so, plug one end of the shielded CAT 5e cable into the open Expansion Bus slot on the first EXP. Plug the other end of the cable into one of the Expansion Bus slots on the second EXP. Then, using another CAT 5e cable, repeat this process, connecting the third EXP to the second EXP, and so on: