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Installation and operation, cont’d, Wiring the captive screw connector, Wiring the power connector – Extron Electronics YCS SW2 User Guide User Manual

Page 13

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YCS SW2 • Installation and Operation

Installation and Operation, cont’d

2-12

YCS SW2 • Installation and Operation

2-13

The fi gure below shows how to wire the connector.

Power Supply

Output Cord

Captive Screw

Connector

0.2” (5 mm)

SECTION A–A

Ridges

Smooth

A

A

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 fi gure shows the pin assignments for the captive
screw connector.

PIN

Auto-
switch

Contact
Closure

Function

1

In #1

Input #1 (contact)
Input #2 (contact)

2

3
4

In #2

5

Gnd

Gnd

Ground

1 2

CONTACT AUTO-SW

Autoswitching

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

Autoswitching


To Pin 5

To Pin 4

Figure 2-12 — Captive screw connector pin
assignments

4

Video output connector — Connect a composite video display

device to this BNC connector.

5

S-video output connector — Connect an S-video display device

to this female 4-pin mini-DIN connector.

6

S-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.

7

Autoswitching 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.