Extron electronic manual PS 123, cont’d, Connections

PS 123, cont’d

LED indicators

	See the illustrations on page 1.
A	Power status LEDs — These front and rear panel LEDs indicate
	the PS 123's status by lighting as follows:
	• Green when power is applied and operation is normal
	• Red when applied power causes a current overload condition
	C Continued operation in an overload condition
	causes premature power supply failure.
	• Unlit when an output is shorted
	N To identify the shorted output, unplug the outputs one at
	a time until the LEDs light green.

Power

You can apply power to the PS 123 either by using the supplied

IEC power cord (B) or by installing the optional Flexible

Conduit Adapter Kit (Extron part #70-228-02) (C).

B	IEC connector/power supply — Plug the external IEC cord into
	this connector and a 100–240 VDC source.
-OR- C	Optional conduit EMT adapter plate — The IEC connector
	and EMT plate can be replaced by this half-inch conduit EMT
	adapter plate, as shown in figure 2. See “Input power — using
	the Flexible Conduit Adapter Kit,” on the next page.
	This plate can be replaced				Extron
					PS 123
	with an optional flex conduit
					12 VDC 3 A Power Supply
	kit, part #70-228-02,
	for plenum applications.
			100-240	50/60Hz 1A MAX.	OUTPUTS
					12 VDC TOTAL OUTPUT 3A
	1	2	3	4	5	6	7	8
			100-240	50/60Hz 1A MAX.	OUTPUTS
					12 VDC TOTAL OUTPUT 3A

N With the Flexible Conduit Adapter kit, the PS 123 meets the UL 2043 requirements.

Figure 2 — Using the conduit option for the PS 123

PS 123 12 VDC, 3 Amp Power Supply • User's Guide

Outputs

D	DC Output connectors — Connect the power cables from the
	devices that will receive power from the PS 123 to these 3.5 mm
	captive screw connectors.
	The PS 123 supports up to eight power supply outputs. For
	details on limitations and how to wire these captive screw
	connectors, see “Output power — wiring the DC output
	connectors,” on page 7.

Connections

Input power — using the IEC power cord

Use the included IEC power cord to connect the PS 123 to a 100 VAC to 240 VAC, 50/60 Hz power source.

Make sure that the source device, the PS 123, and all output devices are turned off and disconnected from the power source before you begin.

WThe circuit breaker used for this connection should be rated no lower than 20 amps.

Input power — using the Flexible Conduit Adapter Kit

The optional Flexible Conduit Adapter Kit consists of

•One EMT adaptor plate

•One 6-foot long electrical conduit

•Three 7.5 feet, 18-gauge spade connector power wires

•One UL rated zip tie wrap

•Three auxiliary crimp style spade connectors designed for 14- to 16-gauge wires

NIf needed, Extron recommends using a UL-rated crimp tool to terminate the spade connectors. One recommended choice is the Molex crimp tool (Molex part

#19285-0008).

The kit provides a convenient means to replace the PS 123 IEC power cord with conduit, where required by local codes.

Make sure that the source device, the PS 123, and all output devices are turned off and disconnected from the power source before you begin.

WThe circuit breaker used for this connection should be rated no lower than 20 amps.

PS 123 12 VDC, 3 Amp Power Supply • User's Guide