Wiring And Connections; Overview; Serial Ports; Rs-232 Ports - Samsung HARMAN AMX MU Series Instruction Manual

Wiring and Connections

Overview

This chapter provides details, specifications, wiring diagrams, and other important information for all port and
connectors available on the MU-series controllers.

Serial Ports

The MU-series controllers each feature device control serial ports that support either RS-232 or RS-232, RS-422, and RS-
485 communication protocols. Each port supports the following specifications:
• XON/XOFF (transmit on/transmit off)
CTS/RTS (clear to send/ready to send)
•
300-115,200 baud rate
•

RS-232 Ports

The RS-232 ports (ports 2-4 and 5-8 on the MU-3300; ports 2-4 on the MU-2300; port 2 on the MU-1300) are 5-pin 3.5
mm Phoenix connectors used for connecting A/V sources and displays. These ports support most standard RS-232
communication protocols for data transmission.
The following table lists the pinouts for the RS-232 ports.
RS-232 Port Pinout
Signal
GND
RXD
TXD
CTS
RS-232/422/485 Ports
The RS-232/422/485 ports (ports 1 and 5 on the MU-3300; port 1 on the MU-1300/2300) are 10-pin 3.5 mm Phoenix
connectors used for connecting A/V sources and displays
These ports support most standard RS-232, RS-422, and RS-485 communication protocols for data transmission.
RS-232/422/485 Pinout
Port Configuration
Signal Function RS-
232
GND Signal Ground X
RXD Receive Data X
TXD Transmit Data X
CTS Clear to Send X
RTS Request to X
Send
TX+ Transmit Data
TX- Transmit Data
RX+ Receive Data
RX- Receive Data
12VDC Power
Function
Signal Ground
Receive Data
Transmit Data
Clear to Send
RS- RS-
422 485
X X strap to RX+
X X strap to RX-
X X strap to TX+
X X strap to TX-
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