GAI-Tronics 12580-001 Audio Distribution Module - Manual (Page 6)

Pub. 42004-600L2C
Model 12580-001 Amplifier Distribution/Monitor Module Page: 6 of 17
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The RS-485 data communications line is connected to J2 (to interface with the CPU PCBA) and to 2-
position terminal block, TB21. Earth ground is connected to TB19 pin 3. The pinout for AZI interface
connector J1 is shown in Table 3.
Table 3. AZI Interface J1 Pinout
Pin
No. Function Description
Pin
No. Function Description
1 RS485+ Passes the positive leg of the
RS-485 interface from the AZI
PCBA to TB21 (
485 + ) (I/O)
14 RS485− Passes the negative leg of the
RS-485 interface from the
AZI PCBA to TB21 (
485 − )
(I/O)
2 Not used 15 Not used
3 Not used 16 Not used
4 Not used 17 Not used
5 AMP1_L1 Passes one leg of audio input
for central amplifier 1 from the
AZI PCBA to TB2 (
AMP1 L1 )
(input)
18 AMP1_L2 Passes the other leg of audio
input for central amplifier 1
from the AZI PCBA to TB2
(
AMP1 L2 ) (input)
6
AMP2_L1 Passes one leg of audio input
for central amplifier 2 from the
AZI PCBA to TB5 (
AMP2 L1 )
(input)
19
AMP2_L2
Passes the other leg of audio
input for central amplifier 2
from the AZI PCBA to TB5
(AMP2
L2) (input)
7 AMP3_L1 Passes one leg of audio input
for central amplifier 3 from the
AZI PCBA to TB8 (
AMP3 L1 )
(input)
20 AMP3_L2 Passes the other leg of audio
input for central amplifier 3
from the AZI PCBA to TB8
(
AMP3 L2 ) (input)
8
AMP4_L1 Passes one leg of audio input
for central amplifier 4 from the
AZI PCBA to TB11 (
AMP4 L1 )
(input)
21
AMP4_L2
Passes the other leg of audio
input for central amplifier 4
from the AZI PCBA to TB11
(
AMP4 L2 ) (input)
9 AMP5_L1 Passes one leg of audio input
for central amplifier 5 from the
AZI PCBA to TB14 (
AMP5 L1 )
(input)
22 AMP5_L2 Passes the other leg of audio
input for central amplifier 5
from the AZI PCBA to TB14
(
AMP5 L2 ) (input)
10 AMP6_L1 Passes one leg of audio input
for central amplifier 6 from the
AZI PCBA to TB17 (
AMP6 L1 )
(input)
23 AMP6_L2 Passes the other leg of audio
input for central amplifier 6
from the AZI PCBA to TB17
(
AMP6 L2 ) (input)
11 not used 24 not used
12 not used 25 not used
13 EGND Passes earth ground to the AZI
PCBA (output)
N OTE : Connector J1 of the ADM is connected to the AZI PCBA via a DB25 cable assembly. This
cable assembly is not included with the ADM and must be purchased separately.