Installation and Operation, cont’d
Wiring the Captive Screw Connector
The
CONTACT
1 2
Figure 2-13 — Captive screw connector pin assignments
Contact Closure
Pins 1, 2, and 
(ground) of the captive screw connector enable input switching via a latching contact closure device. If you want to select inputs remotely, you can connect a momentary contact closure device to pins 1, 2, and 
of the rear panel captive screw connector.
Momentarily short pin 1 to 
to select input 1; momentarily short pin 2 to 
to select input 2.
NIf the contact closure inputs remain latched, front panel input switching is disabled.
Autoswitching
You can set up the YCS to automatically select the active, connected input. If both inputs are active, selection defaults to input 2
When autoswitching is in effect, the green Auto Switch LED on the front panel lights, and the front panel input selection buttons are disabled.
To enable autoswitching,
1. | Cut two small pieces of wire to use as jumpers. |
2. | Insert the ends of one wire into pin holes 1 and 2 of the |
| provided |
| together as shown in figure |
3. | Insert the ends of the second wire into pin holes 2 and 3 of | ||
| the captive screw plug, connecting pins 2 and |
| (3). |
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4. | Use an Extron Tweeker or other small screwdriver to | ||
| tighten the plug’s three screws, so that the wire ends | ||
| remain securely in place. | ||
Figure 2-14 — Captive screw plug with jumper wires connecting pins 1, 2, and 3 (ground) together
5. | Insert the plug into the |
| the YCS rear panel. |
OUTPUT
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| M | OT | E |
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| INPUTS | 2 | RE |
| T | ||
| AC | ||||||
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| CONT |
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1 |
| L | 1 | 2 |
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AU
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| R |
| DI | O |
AU |
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Figure 2-15 — 3-pin captive screw plug in rear panel, with pins 1, 2, and 
connected by a jumper
YCS SW2 A • Installation and Operation |
