User's Manual

E1 Spread Spectrum Radios
4-2
remote unstable condition. TEST indicates system undergoing loopback test.
D. LCD Display: Display the normal working temperature; transmit/receive power, capacity, frequency, BER
and system time.
Figure 4-4 LCD Display
E. Data Port 2 (AUX2): When local equipment should communicate with remote site equipment for simple
data file transmission or online text communication, this port could be used.
F. String Port (NMS2): When there are more than two
sets of equipments in the local stations, connect the
IDU-NMS2 of this equipment to the IDU-NMS1 of the other equipment. When the NMS2 are connected,
only one of the service phones is working.
G. Monitor port (NMS1): Connect the COM1 or COM2 (RS-232) of the computer to this port or act as a
connection between more stations.
H. 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.
I. Grounding
J. LCD Function Keys: Under normal working condition, LCD back light will glows if any button is pressed,
If there is any alarm, the LCD backlight will automatically glows for 2 minutes and display the alarming
status. The buzzer goes off until it is turn off. To shut off the buzzer temporarily, press SEL.
LCD Display refreshes
every 1~2 second