Adtran TRACERT1L7 Manual Do Utilizador
P
AGE
2
61280.003L1-1B
4/12/99
A
PPLICATIONS
Any application that would typically use metallic T1 as a transport
can use the Tracer instead. The figure below illustrates a typical
application.
can use the Tracer instead. The figure below illustrates a typical
application.
Terminal
VT-100
Switch
Cell Radio
RS-232
Cellular/PCS Site
Antenna
Antenna
IF Cable
RF Cable
Mast Unit
Mast and Rack mount RFCs may be mixed to accommodate individual system requirements.
TRACER
Baseband Processor
Baseband Processor
2xT1, Rack-mounted RFC
TRACER
Baseband Processor
Baseband Processor
T1
T1
T1
T1
MSC
T1A
BPV
DATA LOSS
AIS
BPV
DATA LOSS
AIS
T1B
POWER
TRANSCEIVER
TRACER
2xT1, Mast-mounted RFC
TRACER
T1A
BPV
DATA LOSS
AIS
BPV
DATA LOSS
AIS
T1B
POWER
TRANSCEIVER
TRACER
Rack-mount RFC
RF Cable
Figure 1-1. Typical Application
The Tracer can be used in any application requiring that data be
shared at a high rate of speed. In addition to telephony
applications, Tracer can be used in data communications such as
inter-networking, video conferencing, and telemetry.
shared at a high rate of speed. In addition to telephony
applications, Tracer can be used in data communications such as
inter-networking, video conferencing, and telemetry.
S
PREAD
S
PECTRUM
Spread spectrum is a form of communication in which the
bandwidth of a message signal is intentionally increased or
“spread.” The FCC rules allow two methods of spreading --
frequency hopping and direct sequence. Tracer employs direct
sequence spread spectrum.
bandwidth of a message signal is intentionally increased or
“spread.” The FCC rules allow two methods of spreading --
frequency hopping and direct sequence. Tracer employs direct
sequence spread spectrum.
S
ECTION
1