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AIROCKS PRO ARX-900 USER GUIDE V1.0
4.1.2
Installing Relay Units
Install Relay units as high as possible, and with best effort line-of-sight to either the Master unit, or to
the closest uplink Relay unit. The included mounting bracket provides several mounting options.
Typically a BOB is NOT used with a Relay unit since Relay units are normally mounted close to the
powered speaker to which it is providing audio. However, a BOB can be used if desired.
Figure 12 Typical Relay Installation
Once the audio and power cables are attached to the Relay unit, apply AC power.
The front panel display should show that the unit is in the Relay mode and will default to
monitoring the received signal level. If not, press the navigation switches on the unit’s front
panel to select the Relay mode.
If the Master unit is transmitting, and the Relay unit is set to Auto Channel Selection mode, the
Relay unit will automatically tune to the uplink signal and the green RF Signal LED will illuminate.
If audio is being sent by the Master, the Audio Signal LED will also illuminate.
If the NMS is not being used (Unmanaged Network) the RF Signal LED will be constantly
illuminated while the signal is being received.
If the NMS is connected to the Master, the RF Signal LED on the Relay unit will blink until the
NMS has assigned it a network ID. Once a network ID is assigned, the RF Signal LED will be
constantly illuminated and the LCD display will show the network ID number.