Exalt Communications, Inc.
EX-5i Installation & Management
5000005
12
2006-05-17
synchronization controls the transmitter and receiver frame timing so that collocated radios are
transmitting at the same time and receiving at the same time. This can substantially reduce the
opportunity for self-interference. Without synchronization, collocated radios may be transmitting
and receiving at the same time, and thus, near-end interference may occur.
It is not always necessary to synchronize collocated radios. If antennas are
substantially separated, or blocked from one another, and/or frequency separation
tuning is used, the opportunity for near-end interference can be eliminated.
2.5.1 The Temporary Hardware Configuration Key
It is advised to use the browser-based GUI to configure the radio terminals for Radio A and
Radio B orientation. Since many other parameters also need to be set, and the GUI is needed for
these configurations, this is the best way to completely configure the radio terminals.
If the radios are new from the factory or Exalt’s authorized distributor, they will be set to the
factory default configuration. In this case, both radios will be configured as Radio B. They will
also be configured to the factory default settings for:
•
Frequency = 5780 MHz
•
Transmit Power = 4dBm
•
Link Distance = <10 miles
•
Bandwidth = 8MHz
•
Mode = Mode 1
•
TDD Frame Size = 2ms
•
Link Security Key = 000000000000
•
Administration Password = admin
•
User Password = user
•
IP address = 10.0.0.1
•
IP mask = 255.0.0.0
•
IP gateway = 0.0.0.0
•
Ethernet Interfaces = Enabled; 100/Full
•
AUX port NMS Access = in-band
•
T1/E1 enabling = all circuits disabled
•
DS3 enabling = all circuits disabled
If you are uncertain what the configuration of your radio system is, and do not have access to a
computer, and must install the radios immediately, the Temporary Hardware Configuration Key
can be helpful to establish a link, or just to perform a back-to-back bench test, by helping to
configure one of the radio terminals to Radio A.
In many cases, the system design will not be identical to the factory default
configuration, and in some cases, these differences will prohibit the installation of
the radio. If at all possible, obtain a computer and configure the radio terminals
using the browser-based GUI. See section 5.2 for details.