Harman AMX MU Series, Instruction Manual

Page: 24 / 28

pg. 24
Relay Ports
Relay Pinout
Signal Function Signal Function
1A Relay 1 Common 1B Relay 1 NO
2A Relay 2 Common 2B Relay 2 NO
3A Relay 3 Common 3B Relay 3 NO
4A Relay 4 Common 4B Relay 4 NO
5A Relay 5 Common 5B Relay 5 NO
6A Relay 6 Common 6B Relay 6 NO
7A Relay 7 Common 7B Relay 7 NO
8A Relay 8 Common 0B Relay 8 NO
•
Connectors are labeled A and B
• These relays are independently controlled, isolated and normally open
• The relay contacts are rated for a maximum of 1 A @ 0-24 VAC or 0-28 VDC (resistive load)
• If desired, a metal connector strip is provided to distribute ‘common’ among multiple relays.
I/O Ports
Configurable as voltage sensing or digital output
I/O – Pinout
Signal Function
GND Signal Ground
1-4 Individually configurable I/O
+12vdc Vcc
•
Each pin is individually configurable as a voltage sense input or a digital output
•
Threshold settings are available to determine the high/low points for the digital input and the required voltage
change to generate an update
• Digital Output can push or pull 100mA
IR/SERIAL Port
Configurable as IR control emulation or 1-way serial
IR/S Port Pinout – MU-2300 & MU-3300 lower port
Signal Function Signal Function
1- IR 1 GND 3- IR 3 GND
1+ IR 1 Signal 3+ IR 3 Signal
2- IR 2 GND 4- IR 4 GND
2+ IR 2 Signal 4+ IR 4 Signal
• Each pair is configurable as IR or 1-way RS-232
• Baud rates for RS-232 are limited. Maximum Baud is 19200 in DATA mode
• RS-232 voltages are 0-5v, not +-12v. This limits the maximum distance based on the cable resistance to <10 ft
• IR carrier frequency up to 1.142 MHz
• All ports can be used simultaneously
• These ports accept an IR Emitter (CC-NIRC) that mounts onto the device's IR receiver window
IR/S Port Pinout – MU-3300 upper port
Signal Function Signal Function
5- IR 5 GND 7- IR 7 GND
5+ IR 5 Signal 7+ IR 7 Signal
6- IR 6 GND 8- IR 8 GND
6+ IR 6 Signal 8+ IR 8 Signal