User's Manual

E1 Spread Spectrum Radios
4-5
B. ACT Indicator (ACT): This indicator lights up on receiving signal from the opposite device.
C. Power Indicator: ODU’s power indicator light. When all the connecting cables are well connected, switch
ON the IDU’s power. The ODU will provide a power of -48V/0.5A through the IF cable of the IDU.
D. Receive Signal Strength Indicator (RSSI): For better antenna alignment between two terminals at a
longer distance, please rotate and open the BNC 50Ω. Use an electric meter to measure the RSSI
voltage. Weak voltage indicates weak signal received, strong signal indicates the most accurate angle
position.
E. Antenna Interface (TO ANT): Use N-type coaxial cable to connect to the Antenna.
9 At the ODU’s E and F interface, please entwine waterproof tape at the connection point so as to prevent
rainwater or moisture from the device. Natural damage is not warranted.
F. IF Port (N-Type 50Ω): Transmission includes transmitter 310MHz, receiver 70MHz, monitor
11.0592MHz, DC -48V/0.5A. Maximum transmission of 100m possible when using RG-6 cable.
Maximum transmission 200m possible when using RG-8 cable.
4.3 Date Port Guide
 The given example uses Microsoft Windows XP. For other OS, please assess accordingly.
 STEP 1: Click Start Æ Programs Æ Accessories Æ Communications Æ HyperTerminal. In the
Connection Description window enter name in the Name: window and click OK to continue.
Figure 4-8 Data Port Settings (1)
 STEP 2: In the Connect To window click on the down arrow for the Connect using: drop down menu
selections and select the COM Port where the modem is connected. In this example, the modem is
connected to COM1. The other fields in the window will gray out and the COM1 is now set. Click OK to