Installation Instructions Chapter 1

Ripwave Base Station I&C Guide Navini Networks, Inc.
Chapter 1
40 Part #40-00047-01 Rev F v1.0 (TTA)
October 23, 2003
Item Description Termination
Expected
MAX
Length
Protection specified in
Manual
Cabinet
Alarms
Cabinet alarms: Door open and
HMC alarms plus 2 GND inputs.
BTS monitors alarms and
reports back to the EMS
condition. Inputs come from dry
contacts in the cabinet, which
are normally open circuit, can
be closed circuit for alarmed
condition.
Cabinet customer
equipment.
<140 FT Not required
TDD SYNC
TDD sync is a TTL Sync pulse
at a 10 ms cycle rate, 0 to +5V
swing, which is 5 ?s long in
width. This output of BTS is
used for equipment debugging
and to synchronize test
equipment.
Test equipment such as
oscilloscope or analyzer
equipment
<140 FT Not required
GPS
Antenna A/B
(2)
The GPS coax cable carriers
+5V DC and 1.57 GHz RF
signal to be connected to GPS
antenna LNA. RF is an input to
BTS; DC is an output from BTS.
GPS antenna/LNA, which
is normally located at BTS
or on HUT of BTS, not on
tower.
<140 FT Not required
RFS
Calibration
Cable (1)
This coax cable is an RF signal
path to the RFS. Signal is a low
power signal from 2.1 to 2.5
GHz.
RFS connection to BTS >140 FT
Lightning protection
devices must be UL497
listed
RFS
Antenna
Cables (8)
These coax cables are RF
signal path to the RFS. Signal
frequency from 2.3 to 2.7 GHz.
RFS connection to BTS >140 FT
Lightning protection
devices must be UL497
listed
Power/Data
Cable (1)
This cable is a 6-twisted pair
bundled cable used for sending
low current DC voltage to the
RFS at +8 to +12V as well as
RS485 digital bus for TDD
control.
RFS Connection to BTS >140 FT
Lightning protection
devices must be UL497
listed