Extron Electronics PS 124 - Manual (Page 7)

PS 124 12 VDC, 4 Amp Power Supply • Installation Manual 1
Introduction
The Extron PS 124 is a high performance, plenum rated (with
optional Flexible Conduit kit), 12 VDC power supply. The
autoswitchable 100 VAC to 240 VAC input can supply a
maximum current of 4 amps for up to eight outputs. Each
DC output is on a two-pole captive screw connector, with no
per-output current limitation. Two-tone LEDs on the front and
rear panels indicate normal operation (green) and overload
condition (red).
The rack mountable PS 124 has a 1U high, quarter rack wide,
9" deep metal enclosure, allowing the PS 124 to take advantage
of a variety of mounting options.
Front and Rear Panel Features
All power and output connections are on the rear panel.
RED-OVERLOAD
P/S 124
12 VDC 4A POWER SUPPLY
OUTPUTS
RED-
OVERLOAD
100-240 50-60Hz 1.2A MAX.
OUTPUTS
RED-
OVERLOAD
100-240 50-60Hz 1.2A MAX.
12 V TOTAL OUTPUT 4A
12 V TOTAL OUTPUT 4A
D E F C C
Figure 1 — PS 124 front and rear panels
LED indicators
a
Power status LEDs — These front and rear panel LEDs indicate
the PS 124 status by lighting as follows:
• Green when power is applied and current draw is normal
• Red indicates a current overload condition
C Continued operation in an overload condition may
cause 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.