Installation
2.2
Power supply
The unit works with a 9-30 Vdc 0.6 Amp power supply.
The following table shows the power supply requirements.
WL-TX-900
WL-RX-900
Power supply
12V
600 mA
250 mA
24V
300 mA
125 mA
The power supply can be either floating or negatively grounded.
The transmitter provides a 24V DC regulated supply for analog loop power. The
supply is rated at 35 mA and should ONLY be used for powering analog loops.
To ensure internal surge protection works correctly, you must earth each unit
using the Earth terminal.
You must connect the module to the same ground/earth point as the antenna
mounting to avoid differences in earth potential during voltage surges.
DANGER
19
