Connector Information - McIntosh MX120 Owner's Manual

Connector Information

Keypad Terminal Connector
To use a WK-3 or WK-4 Keypad with the MX120, connect
the shield and four leads of a shielded 4 conductor cable to
a RJ-45 Connector Plug, according to the numbers listed
below. There is a numbered connector built into each Key-
pad, which has a different pin out.
MX120 RJ-45
1. Signal Data
2. Signal Data Gnd.
and Cable Shield
3. N/C
4. Supply Voltage Negative
5. Supply Voltage Positive
6. N/C
7. N/C
8. N/C
RS232 DB9 Connector Pin Layout
1. N/C
2. Data Out (TXD)
3. Data In (RXD)
4. N/C
5. Gnd.
Multi-Channel Amp DB25 Connector Pin Layout
1. Left Front +
2. Center Front +
3. Right Front +
4. Subwoofer +
5. Left Surround +
6. Right Surround +
7. Left Back Surround +
8. Right Back Surround + 22. N/C
9. N/C
10. N/C
11. N/C.
12. System Calibrate
13. Power Control In
14. Left Front Gnd.
XLR Connectors
Below is the Pin configuration for the XLR Balanced Input
and Output Connectors on the MX120. Refer to the dia-
gram for connection:
PIN 1: Shield/Ground
PIN 2: + Signal
PIN 3: - Signal
WK-3 and WK-4 Keypad
1. Supply Voltage Positive
2. Supply Voltage Negative
3. Cable Shield
4. Signal Data
5. Signal Data Gnd.
MX120
Keypad
Socket
6. N/C
7. N/C
8. N/C
9. N/C
15. Center Front Gnd.
16. Right Front Gnd.
17. Subwoofer Gnd.
18. Left Surround Gnd.
19. Right Surround Gnd.
20. Left Back Surround Gnd.
21. Right Back Surround Gnd.
23. N/C
24. System Calibrate Gnd.
25. Power Control Gnd.
Pin 2
Pin 1
Pin 3
Power Control Connector
The MX120's Power Control Outputs provide a 5 volt sig-
nal. Use a 1/8 inch stereo mini
phone plug to connect to the Power
Control Input on other McIntosh
Components.
Data and IR Input Port Connectors
The MX120's Data Port Output provides Remote Control
Signals. Use a 1/8 inch stereo mini phone plug to connect to
the Data Port Inputs on McIntosh Source Units. The IR
Ports also use a 1/8 inch stereo mini phone plug and allows
the connection of other brands IR Sensors to the MX120.
Data Port
Connector
IR Input Port
Connector
Connector Information
Positive
N/C
Negative
Data Signal
N/C
Ground
Data Signal
Ground
N/C
5