APG DMS26, User Manual

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DIGITAL MANAGEMENT SYSTEM DMS26
9
REAR VIEW
9 - Secure Button (on the rear)
A momentary button is fitted behind the rear panel, between the output XLRs and the RS232 port. When activated, this
will disable all the front panel controls so they cannot affect the signal path, making the unit secure against tampering.
When in secure mode, the indicators still operate normally. Note that the communications port is still active in secure
mode.
10 - Power Inlet
The APG Digital series unit should be connected to a suitable mains electricity supply using the cable supplied. The
processor has a switch mode power supply that is capable of operating with a nominal mains voltage of 85V to 240V,
50/60Hz without re-configuration.
11 - Network Expansion Port
Where a future network card can be fitted.
12 - Audio Input Connectors
All audio connections are fully balanced and wired pin-1 ground, pin-2 hot & pin-3 cold. The two inputs have pin-1
connected directly to the chassis and feed the signal processing chains. If an unbalanced source is used, a connection
should be made between the pin-3 ‘cold’ signal and the ground connection of the unbalanced source.
13 - Audio Output Connectors
The processed outputs are impedance balanced, and wired pin-1 ground, pin-2 hot and pin-3 cold. An unbalanced input
may be driven by connecting pin-3 ‘cold’ signal to the ground connection of the unbalanced destination input. Note that
output pin-1’s are ground lifted at audio frequencies but connected to ground at RF for good EMC performance. The
intention being that the amplifiers the processor is driving should be responsible for the grounding of their input cable
shields.
14 - Communications Port Connector
APG France Digital series processor may be controlled entirely from another controller, typically a Personal Computer,
running an application that is compliant with the ObCom standard. Connection will normally be made to the controller via
this serial port connector. This port is also used for updating the firmware in the unit.
Note that the communications port is NOT disabled when the front panel is made secure using the secure button.
Please contact APG for information about the software of control PWAPG.