Extron Electronics PS 123 - Manual (Page 10)

PS 123 12 VDC, 3 Amp Power Supply • User's Guide
PS 23, cont’d
0 PS 123 12 VDC, 3 Amp Power Supply • User's Guide
2 . Mount the PS 123 on the rack shelf, using two 4-40 x 3/16"
screws in opposite (diagonal) corners.
3 . If necessary, mount the half rack width false front panel
(included with the Universal Rack Shelf only) and/or the
quarter rack width false front panel (included with the
PS 123) to the shelf, using two 4-40 x 3/16" screws in the
front holes for each panel.
Under-desk mounting
In addition to using the PS 123 power supply on a rack or
projector, it can also be mounted under furniture (such as a
desk) using the MBU 125 Under-Desk Mounting Kit (part
#70-077-01). To mount the PS 123 under a desk or other
furniture, follow these steps:
1
. Attach the mounting brackets to the power supply with
the provided machine screws (figure 9).
2 . Hold the power supply with the attached brackets against
the underside of the furniture. Mark the location of the
screw holes of the bracket on the mounting surface.
3 . Drill 3/32" (2 mm) diameter pilot holes, 1/4" (6.3 mm)
deep in the mounting surface at the marked screw
locations.
4 . Insert #8 wood screws into the four pilot holes. Tighten
each screw into the mounting surface until just less than
1/4" of the screw head protrudes.
Figure 9 — Under-desk mounting the PS 123
5 . Align the mounting screws with the slots in the brackets
and place the power supply against the surface, with the
screws through the bracket slots.
6 . Slide the unit slightly forward or back, then tighten all four
screws to secure it in place.
Projector mounting
PMK 30
The PMK 350 is an above-projector mounting kit that attaches
to a 1" to 2" diameter projector mounting pole (figure 10). It can
hold more than one device, in a variety of sizes. The PMK 350 is
available in black (part #70-563-02) or white (part #70-563-03).
RE D-O VE RL OA D
P/S 12 3
12 V DC 3A PO WE R S UPP LY
BA SS
LE VE L
TR EB LE
MIN I P OW ER AM PL IFIE R MP A 1 22
ON
OFF LIM ITE R
STER EO
DUAL MO NO
Extron
PMK 350
Multi-product Projector
Mounting Kit
Extron
PS 123
12 VDC 3 A
Power Supply
Cover Shee t
Front Plate
Rear Plate
U-bolt
Extron
IPL T S2
Ethernet Control
Interface
Extron
MPA 122
Mini Power Amplifier
CO M 1
LA N UID # 0 930 120 52
PO WE R 12V .5A MA X
CO M1
TX RX TX RX
CO M2
CO M 2
Figure 10 — Projector mounting the PS 123
Follow these steps to mount the PS 123 onto the PMK 350
bracket:
1
. Remove the front and back plates from the PMK 350
(figure 10), using an Extron Tweeker or a #2 Phillips
screwdriver. Retain the screws to reattach the plates when
you are finished.
2 . If necessary, remove the feet from the bottom of the PS 123.
3 . Secure the unit to one side of the mounting tray, using two
of the 4-40 x 3/16" screws in opposite (diagonal) corners.
4 . Place the PMK 350 around the projector ceiling mounting
pole (figure 10, above).