Ericsson LBI-39076B - Manual (Page 16)

LBI-39076B INSTALLATION
16
You may use some other method. However, using the
method described here assures that the supplied cables will
be the correct length and the PCM/Data Bus will be as short
as possible. (The PCM/Data Bus must not exceed 120 feet
in length).
5. GTI SOFTWARE
The 5th step to install the ELI option is to make sure
that the insulating paper tab on the battery (RAM backup)
has been removed, and record the version number of all
software on each board in each GTI unit. Each regular GTI
unit has a Main board and a Processor board. One regular
GTI unit is made into a Master GTI unit by adding a third
board, the Interface board. Keep this information with this
manual for future reference. If a problem is later
encountered with the equipment, this information may be
essential to help with the diagnosis.
Main Board
Revision-A Main boards do not support
narrowband systems. If you have a narrowband
system, you must use revision-D or later Main
boards.
NOTE
The Main board contains the GTI 552 and GTI DSP
software at the locations shown in Figure 10. The first Main
boards, identified by the manufacturer’s number 702-9588A,
require different software than later Main boards, identified
by the manufacturer’s number 702-9588D or E. The boards
are referred to as revision-A Main boards and revision-D or
E Main boards respectively.
GTI 552 GTI DSP U21 U23
FRONT
M446 MAIN BOARD
702-9588D
MAIN
PROCESSOR
BOARD
BOARD
REVISION
BOARD
Figure 10 - GTI Software Locations
Revision-A Main boards
Revision-A Main boards require version 1.x
GTI 552 and GTI DSP software. Do not use
version 2.x or higher GTI 552 or GTI DSP
software with revision-A Main boards.
CAUTION
For a revision-A Main board, the GTI 552 software is
stored in U63 and requires version 1.x software (where x =
any number). A sample label for U63 is shown in Figure 11.
(The actual version number of the software supplied may be
different than that shown.)
2#56022
601-0607
(C) ZETRON INC.
U63
GTI 552 V1.3
Software Version #
Circuit Symbol
Figure 11 - GTI 552 Software (Rev A Main Board)
For a revision-A Main board, the DSP software is
stored in U72 and requires version 1.x software (where x =
any number). A sample label for U72 is shown in Figure 12.
(The actual version number of the software supplied may be
different than that shown.)
2#56022
641-0017
(C) ZETRON INC.
U72
GTI DSP V1.00
Software Version #
Circuit Symbol
Figure 12 - GTI DSP Software (Rev A Main Board)