User's Manual

5.8GHz PDH User’s Manual
12
4.2.1 Function
A.
RSSI Status:
while setting up the equipments in longer distance range, in order to
conveniently adjust the antenna, we can switch on the BNC 50ohm terminal’s
resistance rotator. Use a 3in1 use voltmeter to measure the RSSI voltage and
potential. Please refer to the table given below. Higher the voltage, better the
antenna’s elevation.
B.
Power Indicator (LED):
ODU power indicator light. When all the connecting cables
are well connected, switch ON the IDU Power. Under normal working conditions, the
ODU’s LED display
green light. LED is red if there is no connection at all.
C.
Antenna Port:
after properly fixing up the Antenna, use a moderate length N-Type
connector’s cable of 50ohm to connect to this port.
D.
IF Port:
this connection port and IDU-IF are connected by coaxial cable. The
maximum length of N-Type connector’s RG-5 cable is 100M. The maximum length of
N-Type connector’s RG-8 cable is 300M. The transmitting contents include transmit
310MHz, receiver 70MHz, monitor signal 11.0592MHz and DC -48V/1A
After cable connection, please entwine waterproof tape at the connection point of the
ODU edges at the C and D port. This prevents rain or humidity from the equipment.