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4. Connections
4.1 Power
The power connection is located on the back of the unit in the right corner. This device
should always be used with an earthed power connection. The blue LED on the front of the
device indicates that the device is powered. The power switch is located on the front of the
device behind the small hole on the left side. Operate the power switch carefully by the use
of a small screwdriver.
4.2 Audio
The audio connections are located on the backside of the device. The connections are
balanced "Phoenix" connectors. From left-to-right are OUTPUT 1-8 and INPUT 1-4. The
connections are labelled:
+
for audio hot
-
for audio cold
for audio ground
4.3 RS-485
On the back of the device, next to the audio inputs, is the powered RS-485 connection for
connecting the Engineer Remote on a RJ-45 connector. For wiring scheme, please see the
chapter 'Remote Control'.
4.4 RS-232
On the front of the device, behind the cover plate in the middle, is the RS-232 connection
for remote control of the device with a PC. For connection with a PC use a fully wired 1:1
DB09-DB09 M/F cable only. The cable may have a maximum length of 45 feet.
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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