
Introduction:
This document explains how to interface all models of AudioReQuest Digital Music Servers with Crestron
control systems using the AudioReQuest Crestron Demo Program version 7.0.0. It will not give a detailed
explanation of the protocol used to communicate with the AudioReQuest via Ethernet, Serial, or IR. For
this information, please download the Communication Protocol Guide from
Rear Serial Port Pinout (Male RS-232 Port)
Pin
Purpose
1
Not Used
2
Receive
3
Transmit
4
Not Used
5
Ground
6-9
Not Used
Serial Cable Pinout (Female
Female RS232 cable)
Pin (ARQ Side)
Pin (Control Side)
2
(Rx)
3
(Tx)
3
(Tx)
2
(Rx)
5
(GND)
5
(GND)
COM Settings
The rear serial port is used for integrating the AudioReQuest with a control system. Connection to the rear
serial port requires a Female
Female NULL MODEM serial cable. The front serial port(if equipped) is
used ONLY for configuring certain settings on the AudioReQuest, such as the IP Address. You CANNOT
use the front serial port to control the ARQ.
The default baud rate depends on the model of AudioReQuest unit. On newer AudioReQuest units, the
baud rate is configurable in the webserver (Settings
Hardware
Control Port Baud Rate). The table
below shows the default baud rates by model.
Rear Serial Port
(Single Zone Units)
Rear Serial Port
(Multi Zone Units)
Parameter
Value
Parameter
Value
Baud
9600
Baud
57600
Data Bits
8
Data Bits
8
Stop Bits
1
Stop Bits
1
Parity
None
Parity
None
Flow Control
None
Flow Control
None
Phone (518) 899-1254
•
Fax (518) 899-1251
•
-
1 -