Extron electronic YCS SW2 Installation and Operation, cont’d Contact Closure, Autoswitching

Installation and Operation, cont’d

Contact Closure

Pins 1, 2, and 3 of the captive screw connector enable input switching via a latching contact closure device.

2.	Insert the plug into the 5-pin captive screw connector on
	the YCS rear panel.

If you want to select inputs remotely, you can connect a two- button contact closure device to pins 1, 2, and 3 of the rear panel captive screw connector. When a contact closure device is connected, the front panel input selection buttons remain functional as well.

Autoswitching

POW	ER
	X
12V	MA
0.3A

OUTPUT
S
INPUT
	EO
S-	VID
2

		SW	2
YC	S

UTO-SW A ONTACT C

2 1

You can set up the YCS to automatically select the active, connected input. If both inputs are active, selection defaults to input 2 (S-video). You enable autoswitching by connecting pins 4 and 5 of the rear panel captive screw connector with a small piece of wire that functions as a jumper. Autoswitching remains in effect as long as the jumper wire is connecting these two pins together.

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, do the following:

1.	Cut a small piece of wire to use as a jumper, and insert the
	ends of the wire into pin holes 4 and 5 of the provided
	5-pin captive screw plug, connecting pins 4 and 5 together
	as shown in figure 2-13, below. Use an Extron Tweeker or
	other small screwdriver to tighten the plug’s pin 4 and 5
	screws, so that the wire ends remain securely in place.

Figure 2-13 — Captive screw plug with a jumper wire connecting pins 4 and 5 together

Figure 2-14 — 5-pin captive screw plug in rear panel, with pins 4 and 5 connected by a jumper

Front Panel Features

1	2	3	4	5
AUTO		1		2
SWITCH

YCS SW2

VIDEO DECODER / ENCODER / SWITCHER

Figure 2-15 — YCS SW2 front panel

The YCS SW2 front panel contains the following:

1Auto Switch LED — This green LED lights when autoswitching is enabled. When this LED is lit, the Input Selection buttons are disabled (although their indicator LEDs continue to light to indicate which input has been selected). See Autoswitching, earlier in this chapter, for the procedure to set up autoswitching.

2Input 1 Selection button — Press this button to select input 1, composite video.

3Input 1 indicator LED — This green LED lights when input 1 has been selected.

4Input 2 Selection button — Press this button to select input 2, S-video.

5Input 2 indicator LED — This green LED lights when input 2 has been selected.

2-14 YCS SW2 • Installation and Operation YCS SW2 • Installation and Operation 2-15