Logic Digital Controller
User Guide version 3
Page 11 of 31
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.
Rear Panel
Power Inlet
Audio Output
Connectors
Serial Comms
Port
Audio Input
Connectors
Secure Mode
Switch
Expansion
Port
Power Inlet
The LOGIC SYSTEM 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.
Network Expansion Port
Where a future network card can be fitted.
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.
