Installing The T1-2R With Talk-Around Option Kit - Motorola ASTRO 25 GTR 8000 Manual

MN003286A01-E
Appendix A: Conventional GTR 8000 Base Radio Option Kits
Band Type Attenuation
800 MHz Tx
A.2.3

Installing the T1-2R with Talk-Around Option Kit

Procedure:
1 Install the standalone GTR 8000 Base Radio or GPW 8000 Receiver according to the processes
and procedures provided in the Base Radio or Receiver Installation Chapter. Install a duplexer
according to the appropriate "Replacing a Duplexer" procedure.
WARNING: To guard against personal injury and/or damage to equipment, place the
base radio to Service Mode when performing service. Transmit inhibiting the base radio
within the Station Status screen in the Configuration/Service Software (CSS) also
prevents the transmitter from keying. Remember to place the base radio back to Normal
Mode when service is complete.
2 If the base radio and receiver are in Normal Mode, ensure that each device is placed in Service
Mode, as follows:
a Connect to the transceiver module Ethernet service port using CSS. See
Through an Ethernet Port Link on page
b From the menu, select File → Read Configuration From Device.
c From the menu, select Service → Test And Measurement Screen.
d Click Change to Service Mode.
e At the confirmation screen, click OK.
The device halts activity in the current mode and switches operation to the requested mode.
f Disconnect the Ethernet cable from the transceiver module Ethernet service port.
g Repeat for each device in the configuration.
3 If you choose to turn off the power, set the rocker switch on the front of the associated power
supply to the Off (O) position.
4 Attach the antenna relay to the backplane of the GTR 8000 Base Radio. See the "Replacing an
Antenna Relay" procedure for details.
5 Remove the fan module to gain access to the Transceiver Option Card (TOC) on the transceiver
module. See Replacing the Fan Assembly on page 237
6 Connect cables to each device according to
Diagram on page
7 Replace the fan modules for the base radio and receivers.
8 If you chose to turn off the power, set the rocker switch on the front of the associated power
supply to the On (I) position.
9 Place each base radio and receiver to Normal Mode, as follows:
a Connect to the transceiver module Ethernet service port using CSS. See
Through an Ethernet Port Link on page
b From the menu, select File → Read Configuration From Device.
c From the menu, select Service → Test And Measurement Screen.
298
CA01957AA: T1-2R
1.5 dB typical
1.7 dB maximum
296.
140.
for details.
Figure 127: T1-2R Talk-Around Option Kit Wiring
140.
Connecting
Connecting