User manual

DTS Broadcast PDH Microwave Digital Radio User Manual
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2.4.2 ODU
Figure 2-22 ODU and Connector
• Antenna Alignment Indicator: If there is no electric meter during set up, this indicator helps to
define the antenna alignment. Higher the signal strengh indicates better antenna alignment.
• B. ACT Indicator (ACT): This indicator lights up on receiving signal from the IDU.
• C. Power Indicator: ODU’s power indicator light. When all the connection cables are well
connected, switch ON the IDU’s power. The ODU will be provided a power of -48VDC through
the IF cables by the IDU.
• D. Receive Signal Strength Indicator (RSSI): For better antenan alignment between two terminals
at a longer distance, please rotate and open the BNC 50_. Use muilt-meter to measure the RSSI
voltage. Weak voltage indicates weak signal received, strong signal indicates the most accurate
andle position.
• E. Antenna Interface (TO ANT): Use N-type coaxial cable to connect the Antenna.
• F. IP Port (N-Type 50_): Transmission includes transmitter 310MHz, receiver 70MHz, telemetry
signal, and DC -48V. Maximum transmitter of 100M possible when using RG-6 cable. Maximum
transmission 200M possible when using RG-8 cable.
• At E & F interface, please entwine waterproof tape at the connection point so as to
prevent rainwater or mositure from the device. Narural damage is not warranted.