Motorola ASTRO 25 GTR 8000 - Page 107

Port /
Type
Device it connects to:
Port /
Type
Description
dios, or with a mix of
QUANTAR
®
stations:
Site Controller module B
port,
RJ-45
NOTICE: The length of the cable
between the site controller and
the base radio should be no
greater than 30 ft.
ASTRO
®
25 repeater
site with More than six
GTR 8000 Base Ra-
dios, or with a mix of
QUANTAR
®
stations:
External Site LAN switch
or Site Controller mod-
ule B
LAN port,
RJ-45
IP interface connection to the site LAN
switch port for this channel or connection to
site controller B base radio port for this
channel. An optional SDM RTU device
connects to the site LAN switch that is con-
nected to this port.
RX-A,
BNC
Receive line A BNC RF coax to receive path for antenna A.
RX-B,
BNC
Receive line B BNC RF coax to receive path for antenna B.
This port is used for dual diversity for
TDMA.
Transmit
port, N-
type
Transmit line N-type RF coax to transmit antenna.
Aux Pwr
Output
Comparator or Site Con-
troller
Aux Pwr
Input
Provides secondary power to a convention-
al comparator for a conventional base ra-
dio, or to the site controller in an ASTRO
®
25 repeater site.
Bat Temp,
6-pin
Battery temperature
sensor
Connection to temperature sensor, allow-
ing for temperature compensated battery
charging.
RF Pe-
ripherals
RF peripheral sensor
ports
Antenna relay and presence detect, exter-
nal circulator load temperature (external
wattmeter not supported).
Batt/DC DC power supply or bat-
tery
Batt/DC Input from and output to a 48 VDC power
supply or backup battery. When AC power
is not available, the device switches to op-
erate from a DC source if the optional DC
power (8AWG; length 9 ft), CA01400AA is
ordered and installed. One end connects
into the Batt/DC port and the other end
connects into the DC source. The contacts
are 39-83503N02 (AMP #53880-2), the re-
ceptacle housings are 15-83502N01 (AMP
#53884-1) and the mounting ears are
07-83504N01 (AMP #53887-1).
3084869Y06 cable is used for a positive
ground system. 3084869Y02 cable is used
for a negative ground system.
AC 120/240 VAC power
source.
Input from 120/240 VAC nominal power
source.
MN003286A01-E
Chapter
3: GTR 8000 Base Radio Installation
107