Manual Remote Control - Extron electronics System 8 User Manual

MANUAL REMOTE CONTROL
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MANUAL REMOTE CONTROL
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1;.he MANUAL REMOTE connector (Fig 4-5) is a 25-pin D-Sub port used to remotely control the System
sifo
switcher by dry contact closures to ground by using an Extron hard-wired remote (KP-10) or another
~,. manufacturer's remote control device. The connector also has a remote tally lamp capability to light
remote incandescent lamps or LEDs to indicate which input has been selected.
~- .. CONNECTOR PIN ASSIGNMENTS
Table 4-1.
Remote Control Connector
Projector Power. Pin 11 of the MANUAL REMOTE connector is used to
switch projector power. By making a dry momentary contact closure for two
seconds between pin 11 and ground (pin 25), the system switcher will command
the projector to turn ON. A subsequent two second contact closure will com-
mand the projector to turn OFF.
Vide~ M~te. Pin 24 of the MANUAL REMOTE connector is used to mute the
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projector video. By making a dry contact closure between pin 24 and ground
(pin 25);' the system switcher will command the projector video image to mute
(blank). A subsequent momentary contact closure will instantly restore the video
image.
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1
Input Channel Selection. Input channel selection is made by making a dry
contact closure between the- desired input (pin 1 thru 10) and ground (pin 25).
Continuous dry contact closures can be made to select channels, but such
continuous connections made at the MANUAL REMOTE port override all
· other means of input selection (i.e., takes precedence over front panel
pushbutton selections and RS-232 inputs from a host controller).
Tally
Outputs. Tally outputs (pins 14-23) offer means to poll a status from the
System 8/10 to determine which input is presently selected. The tally outputs
also have the ability to drive a remote front panel type lit display. Tally outputs
are normally high (5 volts) and drop to a low (O volts) when selected. The tally
outputs can be used to drive either remote LEDs or remote incandescent lamps.
Use one of the following schematics for each of the tally pins to power a remote
display.
LED
+5V (PIN 13)
+5V (PIN 13)
TALLY PIN
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330 Ohm
TALLY PIN
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Figure 4-4. EXTERNAL POWER
Tally Lamp Connections.
TALLY PIN
Pin Assignments.
1 Input #1
2 lnput#2
3 lnput#3
4 lnput#4
5 lnput#5
6 lnput#6
7 Input#?
8 lnput#8
9 lnput#9
10 lnput#10
11 Proj. Power
12 (not used)
13 +5
V;
100
mA
14 Tally #1
15 Tally #2
16 Tally#3
17 Tally#4
18 Tally#5
19
Tally#6
20 Tally#?
21 Tally #8
22 Tally#9
23 Tally#10
24 Video Mute
25 Ground
INCANDESCENTS
EXTERNAL POWER
RESISTOR VALUE
DEPENDS ON CURRENT
REQUIREMENT OF LAMP
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System 8/10 User's Manual • Page 4-5