9.9.1 How To Replace Transmit Filters (700/800 MHz)
Figure 9-15
Transmit Filter (700/800 MHz)
When using this procedure to replace or remove the transmit filter,
the warning applies and you
must power down the site before starting the replacement procedure if the entire site is connected to the
Transmit filter being removed. Powering down the site causes any affiliated subscribers to relocate to
another channel at an adjacent site. It is recommended that you disable the channels before powering down
so that the system does not attribute the loss of channel to a failure. You can disable a channel using the
Unified Event Manager, or the Configuration/Service Software (CSS).
Shock hazard. The GTR 8000 Base Radio contains dangerous voltages which can cause severe
electrical shock or damage to equipment. Set the rocker switches on the front of the associated power
supplies to the off position before servicing this component in the base radio.
9.9.1 How To Replace Transmit Filters (700/800 MHz)
Procedure Steps
1
Wear an electrostatic discharge (ESD) wrist strap and connect its cable to a verified good ground. This strap
must be worn throughout this procedure to prevent ESD damage to any components.
2
Disable all base radios at the site that are using the transmit filter module being replaced.
a. Connect to each device module’s Ethernet service port using Configuration/Service Software (CSS). See
4.4.4 Connecting Through an Ethernet Port Link, page 4-11
.
b. Select
Service → Test Measurement Screen
from the menu.
c. Click
Change to Service Mode
.
Step result:
The base radio is disabled.
6871022P86-A - November 2012
9-29
Содержание GTR 8000
Страница 2: ......
Страница 4: ......
Страница 6: ......
Страница 14: ......
Страница 18: ......
Страница 22: ......
Страница 26: ......
Страница 60: ......
Страница 80: ...GTR 8000 Base Radio Figure 2 22 Base Radio Backplane Mounting Location 2 20 6871022P86 A November 2012 ...
Страница 177: ...5 8 1 3 VHF Tuning Procedure Figure 5 1 Preselector Tuning VHF 6871022P86 A November 2012 5 7 ...
Страница 181: ...5 8 2 3 UHF Tuning Procedure Figure 5 2 Preselect Tuning UHF 6871022P86 A November 2012 5 11 ...
Страница 230: ......
Страница 234: ......
Страница 244: ......
Страница 286: ......
Страница 300: ......
Страница 338: ......