User manual

Easysound Stand-alone User Manual Getting Started
Miranda Technologies Ltd Page 19
Getting Started
Applying Power
Before applying power, ensure that the floppy disk drive does not contain a
disk.
Easysound Standalone does not have a power on/off switch and power is
applied immediately when the IEC plug is connected to mains power. The
product should be connected to the mains via an appropriate circuit breaker.
The 2RU version (ES2U-SA) has 2 IEC inlets as it has redundant power
supplies.
Boot-Up Sequence
Once power is applied Easysound-Standalone boots automatically and the
complete process takes about 50 seconds. The unit first checks to see if there
is a disk in the floppy drive and, if it finds one, it will attempt to boot from
that disk. Miranda Technologies Ltd issues specialised floppy disks for use as
part of the boot-up sequence when software upgrades are being implemented.
No other disk should ever be present in the floppy disk drive during the boot
sequence. The boot sequence is complete when the following top level "boot-
up" menu appears on the front panel VFD display.
Mechanical Bypass
In the event of power loss to the Easysound Standalone, or failure of an
internal power supply, the mechanical bypass option routes the serial digital
"background signal" directly to the programme output. This feature is an
emergency failsafe and is completely non-synchronous in operation. During
boot-up, the bypass is maintained until Easysound Standalone is fully
operational.