GAI-Tronics 12580-001 Audio Distribution Module User 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.