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HARDWARE COMPATIBILITY LBI-38988
Rev. B 11
HARDWARE COMPATIBILITY
The GETC hardware compatibility depends on the
version of EPROM installed on the Logic Board, refer to
the following table:
Table 4 - GETC Hardware Compatibility
GETC LOGIC
BOARD
EPROM, U2
LOGIC BOARD TURBO BOARD
349A9607G5 19D904266G4
19D904266G1
19D903536P1
349A9607G4 19D904266G4
19D904266G1
19D903536P1
349A9607G3 19D904266G1 19D903536P1
349A9607G2
(or earlier)
19D904266G1 19D903536P1
19A705595G8 19D904266G1 19D903536P1
NOTE
GETCs using EPROM 349A9607G4 or later must
use Logic Board 19D904266G4 or upgrade the
Logic Board 19D904266G1 with the Speedup
(80C320) microprocessor and Amps Modem
chips, U4 and U19 (19A704727P4). (Refer to
Upgrading Hardware in the Hardware Installation
section of this manual.)
GETCs using EPROM 349A9607G4 or later must
also have the FerriShield Toroid (REG70469/1)
installed around the Turbo Board’s harness for
EMI suppression, refer to LBI-28822 for details.
Downlink
Backup
J100 J102
Trunked Site #1 of N
12 11 10 9
Rx TB10 Tx
J100 J102
Tx Rx
Audio
Repeater #1
J102 J100
GETC #1
Audio
Repeater #2
J102 J100
GETC #2
. . .
Audio
Repeater #N
J102 J100
GETC #N
Site Controller
Computer
Failsoft
Backup Serial Link
Tx Rx
Tx Rx
3 4 2 5
Rx TB10 Tx
Downlink
Primary
12 11 10 9
Digital Data Path
Audio Path
9600 baud Modem Data
To MSC
4-Wire Audio Circuits
To MSC
3 4 2 5 3 4 2 5
Figure 1 - Typical EDACS Site Block Diagram
NOTE