Appendix b – system restore and power-up buttons, Appendix c – cm-8e accessories – USL CM-8E User Manual
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Appendix B – System Restore and Power-Up Buttons
The CM-8E has two methods of recovering from an unlikely failure. These are detailed below.
Restore Factory Firmware
If a firmware update of the main (P32) processer is interrupted, it is possible to leave the
system inoperable. To restore the factory installed firmware, turn off the CM-8E, and then hold
down the Left and LFE buttons while turning the power back on. The front panel LEDs will flash
as the factory firmware is restored. The CM-8E will then restart with the factory firmware.
Restore Default Configuration
Hold down the Left and Center buttons while powering up the CM-8E to restore the factory
default configuration. This causes the CM-8E to skip reading of the user defined configuration.
The factory configuration is not saved to flash by this operation. If you wish to save the factory
configuration to flash, hit the save settings button on any of the configuration pages (each of
these save all the current configuration).
Appendix C – CM-8E Accessories
Cables
USL can supply the cables listed in the table below to simplify your CM-8E installation.
USL Part Number
Description
IMF-6
DB-25M to DB-25F, 6 feet (914mm). Connect processor to CM-8E. Two
required for biamp crossover in processor
VXC-2
DE-15M to DE-15M, 2 feet (610mm). Connect CM-8E output to amplifier
input.
VXC-6
DE-15M to DE-15M, 6 feet (1.8m). Connect CM-8E output to amplifier input.
DAT-100
DAT-100 Digital Audio Generator generates tone, voice, and pink noise signals on 16 AES/EBU
channels. The DAT-100 can be used to verify the correct routing and operation of audio
through the processor, monitor, and amplifiers.
VP-1
Vent panel to fill the space and provide ventilation above and below the CM-8E.
PXC-3 Adapter
The PXC-3 combines left and right to drive one amplifier. A second PXC-3 combines center and
LFE-1 to drive a second amplifier. See section 5.4.3 for details.
PXC-4 Adapter