Yamaha 1009MWTO-F0 - Manual (Page 16)

The Contr
ols and Connect
or
s
Rear Panel
DME64N/DME24N Owner’s Manual 16
Rear Panel
[AC IN] Connector
This is the device’s three-pronged AC power connector.
Connect to the AC mains using the supplied AC power
cord. See “Setup” on page 18 for details.
Even when the power switch is turned off,
electricity is still flowing to the product all the
minimum level. When you are not using the
product for a long time, make sure to unplug the
power cord from the wall AC outlet.
Ground Screw
The supplied AC power cable is a 3-wire type, so if the
AC outlet used is properly earthed the DME64N/24N will
be earthed as well. Hum and interference may by further
reduced in some cases by also connecting the earth
screw to an earth point.
[GPI] Connector
This Euroblock connector provides access to the unit’s
GPI (General Purpose Interface) interface for transfer of
control signals to and from external equipment. The
DME64N provides 16 channels of GPI input and output,
while the DME24N provides 8 channels. Each input
channel has an IN terminal and a +V terminal. Output
channels each have an OUT terminal and a GND
terminal. The open voltage at the +V terminal is 5V, while
the IN terminal detects voltage changes from 0V ~ 5V.
The OUT terminals output either signal “L” or “H” at a
TTL level.
See “GPI Connection ([GPI] Connectors)” on page 33
for connection details.
[MIDI IN] [MIDI OUT] [MIDI THRU]
Connectors
These are standard MIDI connectors that handle
reception and transmission of MIDI data: [MIDI IN]
receives MIDI data, [MIDI OUT] transmits MIDI data, and
[MIDI THRU] re-transmits MIDI data received at the
[MIDI IN] connector. See “MIDI Connection ([MIDI]
Connectors)” on page 30 for connection details.
[WORD CLOCK IN] [WORD CLOCK OUT]
Connectors
These BNC connector receive and transmit word clock
from and to external equipment. See “WORD CLOCK
Connection ([WORD CLOCK] Connectors)” on page 32
for connection details. Word clock settings are available
via the device’s Utility display WCLK page (see page 50
of this document).
DME64N
DME24N
NOTE
Use the supplied AC cord clamp to prevent accidental
disconnection of the AC power.
NOTE
Connect the device to only one ground point.
Connecting the device to more than ground point can
result in ground loops that can cause increased hum and
noise.
CAUTION