Scp 250 • installation and operation, A daisy chain of scps connected to a system 7sc, System 7sc rear panel – Extron Electronics SCP 250 User Guide User Manual
Page 15: Scp 250
SCP 250 • Installation and Operation
2-7
the switcher. The illustration below shows several SCPs
connected to a System 7SC switcher in a typical daisy
chain setup.
RS-232
PROJ CONTROL
CONTACT CLOSURE
RELAY 1
RELAY 2
1
2
DISPLAY PWR
SENSOR
IR COMM
R
G
B
H/HV
V
INPUTS
AUDIO IN
SCP/AAP CONTROL
OUTPUTS
RGB
Anaheim, CA
100- 240
50/60 Hz
1.3A MAX.
1
L
R
1
L
R
2
L
R
3
L
R
4
L
R
5
L
R
6
L
R
1 2 3 4 5
A B C D E A B C D E
6 7
E D C B A A B C D E F G H I J
FIXED
VARIABLE
E D C B A E D C B A
R
R-Y
G/Y
VID
H/HV
V
B/C
B-Y
R
R-Y
G/Y
VID
H/HV
V
B/C
B-Y
R
R-Y
G/Y
VID
H/HV
V
B/C
B-Y
R
R-Y
G/Y
VID
H/HV
V
B/C
B-Y
R
R-Y
G/Y
VID
H/HV
V
B/C
B-Y
R
R-Y
G/Y
VID
H/HV
V
B/C
B-Y
2
3
4
5
6
L
R
AUDIO OUT
System 7SC Rear Panel
SW13
J1
J2
1
1
8
7
6
5
4
3
2
1
SW13
J2
J1
1
1
1
2
3
4
5
6
7
8
SW13
J2
J1
1
1
1
2
3
4
5
6
7
8
SW13
J2
J1
1
1
1
2
3
4
5
6
7
8
SW13
J2
J1
1
1
1
2
3
4
5
6
7
8
SCP 250
SCP 250
SCP 250
SCP 250
A daisy chain of SCPs connected to a System 7SC
N
The maximum distance away from the switcher that the
last SCP (or other device) in the daisy chain can be placed
is 300 feet (91.4 meters).
N
Each port of the System 7SC switcher provides up to
12 VDC for powering the SCP control panels or other
devices. However, the total load for both ports combined
must not exceed 1 ampere. Each SCP uses 12 VDC at
0.06 ampere (60 mA).
6
.
Another device such as an interface or distribution
amplifier can receive power from the system switcher via
an SCP, as long as the following limits for the total load
attached to each switcher are not exceeded:
•
System 7SC — 12 VDC, 1 A
•
System 5cr Plus — 12 VDC, 0.5 A (500 mA)
(each port provides 250 mA)
7
.
After each SCP has been cabled and tested, mount it into the
wall box, brackets, or furniture. See