Extron electronic YCS SW2 Wiring the Power Connector, Wiring the Captive Screw Connector

Installation and Operation, cont’d

4Video output connector — Connect a composite video display device to this BNC connector.

5S-video output connector — Connect an S-video display device to this female 4-pin mini-DIN connector.

6S-video Y and C output connectors — Connect the luma (Y) and chroma (C) connectors of an S-video display device to these Y and C female BNC connectors, respectively.

7Autoswitching and contact closure connector — This 5-pin, 3.5 mm captive screw connector can be used for autoswitching and for control by contact closure.

•Connect an optional two-button contact closure device to the three ports labeled “Contact” (pins 1, 2, and 3). (See Contact closure, later in this chapter.)

•Jumper-wire together the two ports labeled “Auto-SW” (pins 4 and 5) to enable autoswitching. (See Autoswitching, later in this chapter.)

Wiring the Power Connector

To wire the connector for the external power supply,

1.	Cut the DC output cord to the length needed.
2.	Strip the jacket to expose 0.2 inches (5 mm) of the
	conductors.

CAUTION Exposing more than 0.2” (5 mm) of the copper wires could allow the stripped wires to touch each other, causing a short circuit. This could result in the external DC power supply overheating and/or burning.

	Stripping the wires to expose less than the
	recommended amount may cause them to slide out
	of the connector too easily, even if they are tightly
	pinched by the captive screws.
3.	Slide the leads into the supplied 2-pin captive screw plug
	and secure them, using an Extron Tweeker or other small
	screwdriver.
4.	To verify the power cord’s polarity before connecting
	it, plug in the power supply with no load and check the
	output with a voltmeter.

The figure below shows how to wire the connector.

SmoothRidges

A A

SECTION A–A

0.2” (5 mm)

Power Supply

Output Cord

Captive Screw

Connector

Figure 2-11 — Power connector wiring

CAUTION Do not tin the stripped power supply leads before attaching the captive screw plug to them. Tinned wires are not as secure in the captive screw connectors and can be easily pulled out. They may also break after being bent several times.

The two power cord wires must be kept separate while the power supply is plugged in. Remove power before wiring.

Wiring the Captive Screw Connector

The 5-pin, 3.5 mm captive screw connector is used for optional push-button remote control of the YCS SW2, and/or to enable autoswitching between inputs connected to the YCS. The following figure shows the pin assignments for the captive screw connector.

CONTACT AUTO-SW

1	2
(1) (2) (3) (4) (5)

PIN	Auto-	Contact
	switch	Closure	Function
1		In #1	Input #1 (contact)
	—
2	—	In #2	Input #2 (contact)
3	Gnd	Gnd	Ground
4	To Pin 5		Autoswitching
		—
5	To Pin 4	—	Autoswitching

Figure 2-12 — Captive screw connector pin assignments

2-12 YCS SW2 • Installation and Operation YCS SW2 • Installation and Operation 2-13