Installation, cont’d
PVS 204SA Switcher • Installation
2-8
PRELIMINARY
Control connection
h
RS-232/MLC/IR control port — The PVS switcher can be
controlled via an RS -232 connection directly from a host
computer, a control system, or a MediaLink Controller (MLC).
For IR remote control, connect an Extron IR Link to this port.
RS-232 connection can be used to congure the PVS switcher.
Connect a cable between this port and an optional Extron MLC
MediaLink Controller or an optional IR Link IR signal repeater.
•
The MLC provides remote control of input switching and volume.
•
The IR Link accepts modulated IR signals from a remote control
(e.g. the Extron IR 452 remote) enabling the remote control to be used for
selecting the switcher inputs.
Wire the captive screw connector and connect it to a computer or control
system, an MLC, or an IR Link, as shown in gures 2-9 through 2-12.
RS-232/MLC/IR
ABC
PVS 204SA
Switcher's rear panel
RS-232/MLC/IR port
NOTE Connect a ground wire
between the MLC and the
switcher.
MLC 104’s MLS and
power ports
NOTE If you use cable that has a drain
wire, tie the drain wire to ground
at both ends.
PVS 204SA Switcher Rear Panel
LR
AUX/MIX IN
DO NOT GROUND
OR SHORT
SPEAKER OUTPUTS!
1B
1A
I
N
P
U
T
S
O
U
T
P
U
T
S
2B
2A
4
3
RS-232 MLC/IR
DC VOL
4/8 Ohms
AMPLIFIED OUTPUTS
VOL/MUTE
Tx
ABC
Rx IR 12V
10V
POWER
12V
3A MAX
US
LISTED
17TT
AUDIO/VIDEO
APPARATUS
®
RGB
VIDEORGB
VIDEO
D
E
Tx Rx IR +12 V
MLC 104 front and side panels
RS-232
Projector
HIGH
PASS
FILTER
ON STEREO
DUAL
MONO
OFF
RS-232
and power
RS-232 12V
MLS PWR
AB
Rx
Tx
GROUND
GROUND
+12V IN
Ground ( )
Transmit (Tx)
B
Receive (Rx)
A
Transmit (Tx)
Receive (Rx)
B
A
+V
G
SC P
+1 2V OU T
PW R S NS
GR OUN D
GR OUN D
GR OUN D
GR OUN D
GR OUN D
Tx
Rx
HOST/
CONFIG
LAN
PRESS TAB WITH
TWEEKER TO REMOVE
A B
A B E
SCP
COMM
MLS
RS-232
PWR
12V
PROJECTOR
RS-232/IR
Tx /IR
Rx
Tx
Rx
+1 2V IN
+12 VDC input
CONFIG
PROJECTOR
VOLUME
MLC 104 IP
ON
VIDEO
AUX
VIDEO
PC
IMAGE
MUTE
OFF
1
2
3
4
50 feet (15.2 m) maximum
Figure 2-9 — Connecting an MLC 104 to the switcher
N
The PVS 204SA power supply can support a typical system, for example:
• a PVS 204SA
• 4 PVT transmitters
• 2 or 4 speakers (see “Speaker Configuration” later in this chapter for details)
• an MLC 104 IP Plus with an IRCM DV+
• an MLP 101 D
• If an SCP 104 is used in the system, the MLC 104 Plus MUST have its own
power supply.
• The PVS 204SA provides sufficient power to run an MLC 104 IP or any
MLC 52 RS model.
RS-232 MLC/IR
Tx
A B C
Rx IR 12V
