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Installation, cont'd
1
2
3
4
5
6
7
Figure 2-20 — Typical local control device
Figure 2-21 shows the HSA connected to an Extron MLC 226
MediaLink
™
Controller. The status pin can trigger the MLC's
digital input.
HSA 822MS
+
1
2
V
CTL
BRD
S
W
1
Figure 2-21 — Typical MediaLink control device
The MLC's pull-up resistor to 3.3 VDC must be
activated (the MLC's switch 2 closed). Refer to the
MLC 226 product manual.
The flex I/O port on an Extron IP Link
Control Interface can be used in place of the MLC 226
and its digital input port.
2-22
HSA 822MS • Installation
8
9
10
+ -
PWR SUP
MLC 226
+
3
3 .
V
+
1
2
V
2
K
S
W
2
S
T
A
T
U
S
D
G I
T I
A
L
I P
NS
N I
P
U
T
C
T
G
N
D
G
N
D
™
Ethernet
Bezels
L
The HSA 822MS ships with RJ-45/RJ-11 connector bezel plug-
ins in a variety of colors and a black, blank
bezel.
Bezel
To change to a different color RJ-45 connector
bezel or if an RJ-45 connector is not needed or
desired, replace the connector bezel plug-in on
the AAP/RJ-45 panel with a bezel of a different
color or a blank plug-in. See Replacing the Bezels
in chapter 3.
If no RJ-45 connector is desired, snap
the interior RJ-45 cable onto the rear of
the blank bezel plug-in (shown at
right) to hold it conveniently out of the
way. Retain the removed connector
bezel plug-in for any possible later
use.
HSA 822MS • Installation
Blank Bezel
Plug-in in AAP
Panel
2-23
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