MSB Technology Select DAC II User Manual page 13

Dual Supplies
When two Power
Supplies are used,
they need to be
l i n k e d t o g e t h e r
using the remote
trigger. There is a
small switch on the
button of the unit
just under the power
button which allows
each power base to
be set as the normal
master main supply
or to be set as the
secondary or slave
The Dual Power Base option is a great upgrade.
supply. It does not
One supply is for the digital part of the DAC
matter which supply
and the other is for the Analog Part.
you select as main or
secondary. The only
impact is on the control. One supply will power both units on and
off and the other supply interface will be disabled.
To use two supplies connect a 3 pin headphone style cable between
the remote connectors on each Power Base. To include another
MSB product or MSB amplifier, connect a cable to them as well
as described below.
12 Volt Remote Trigger
This power supply is equipped with a remote trigger for use with
other MSB products. The trigger uses a 3 pin headphone jack. When
any MSB product is turned off, the other products connected will
also turn off and vice-versa. This trigger can also be used with other
products. Every product does this trigger a little different, so you
may need to rewire a cable or use an interface relay. The connector
is wired as shown. If you connect "signal" to "ground", all MSB
products will turn off. If you connect "signal" to "12 V" or leave
it open, all MSB products will turn on.
Ground Jumper IN - Basic Operation
The Basic Operation provides isolation only for the DAC. This
gets you half the protection available, but leaves the very important
Amplifier interface open to noise. This is a quick easy way to test the
DAC. Be sure the jumper is in place between the Chassis Ground
and Amplifier Ground. This is the shipping configuration. NEVER
OPERATE WITHOUT THE JUMPER OR A GROUND WIRE
ATTACHED. Plug in the DAC and listen to the results.
Power Base is shown with jumper in. This
is one way to use the product. No ground
wire should be connected in this mode.
The SELECT II power cables are special and are not used
with any other MSB product. The SELECT power base is
not compatible with other MSB products.
If the signal is pulled low:
Unit will turn off.
If the signal is pulled down with a 50K resistor:
Unit will go to standby.
If the signal is left floating:
Unit will remain on.
If the signal is driven with 12 V:
Unit will turn on and switch will be ignored.
12 Volt Remote Trigger wiring.
Adapter cable for connection to non-MSB Products
13