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Connect as shown below.
Exchange interconnection by means of AI-900TI
2 twisted pair cables
2 twisted pair cables
2 twisted pair cables
2 twisted pair cables
2-core shielded cable
2 twisted pair cables
2 twisted pair cables
2 twisted pair cables
2 twisted pair cables
2-core shielded cable
AI-900TI
Voice line 1
CN1
Voice line 2
CN2
Voice line 3
CN3
CN4
Voice line 4
Data line
CN6
RS-485
AI-900TI
Voice line 1
CN1
Voice line 2
CN2
Voice line 3
CN3
Voice line 4
CN4
Data line
CN6
RS-485
Front view of
the circuit board
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
A
B
GND
GND
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
HOT
COM
A
B
GND
GND
37
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