International Home Theater System User Manual

Installation
D-73d Series Installation/Operation Manual 43
PRE
L
IMINAR
Y
Additional Connections to
the Primary DHD
Controller (Optional)
The Primary DHD Controller provides the following interfaces to external equipment that
allow it to control or be controlled by that equipment:
• An RS-232 interface to a PC or control/automation system;
• Three (3), 12-volt trigger outputs;
• An infrared (IR) repeater input;
• An Ethernet network interface for firmware updates and maintenance notifications.
The following sections describe how to make these interface connections. For more
information about using these connections, refer to Network on page 88 and External
Control on page 103.
RS-232 Controller Connection: Use a straight-through, 9-pin RS-232 cable to connect
a PC or control/automation system (if present) to the RS-232 port on the Primary DHD
Controller; see Figure 3-17.
Figure 3-17. RS-232 Control System Connection to Primary DHD Controller
H
HDMI 4
HDMI 3
HDMI Out
Audio Only
HDMI Out
To Display
Ethernet
PC / Control
RS232
Display Control
IR
HH
HDMI
4
HDMI
3
HDMI
Ou
t
Audi
o
O
nl
y
HDMI
Ou
t
To
Di
sp
l
a
y
E
t
h
ernet
D
is
p
l
a
y
C
o
ntr
o
l
IR
1
2
345
7
89
6
to Automation/
Control System
or PC
2 Receive Data
3 Transmit Data
5 Ground
(none of the other pins are used)