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Front cover
Installation Manual
PS 124
12 VDC, 4 Amp Power Supply
68-1714-01 Rev. A
05 09
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Precautions Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source This symbol is intended to alert the user of important indicated on the product. This equipment is intended to be used with a main power operating and maintenance (servicing) instructions in system with a grounded (neutral) conductor. The third (grounding) pin is a safety the literature provided with the equipment. feature, do not attempt to bypass or disable it.
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• • • • • • • • • • • FCC Class B Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interfere
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Table of Contents Introduction .................................................................................... 1 Front and Rear Panel Features ................................................. 1 LED indicators............................................................................ 1 Input Power ............................................................................... 2 DC Outputs ................................................................................ 3 Connections ....
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Table of Contents, cont’d ii PS 124 12 VDC, 4 Amp Power Supply • Table of Contents
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Introduction The Extr on PS 124 is a high performance, plenum rated (with optional Flexible Conduit kit), 12 VDC power supply . The autoswitchable 100 V AC to 240 V AC input can supply a maximum curr ent of 4 amps for up to eight outputs. Each DC output is on a two-pole captive scr ew connector , with no per -output curr ent limitation. T wo-tone LEDs on the fr ont and rear panels indicate normal operation (green) and overload condition (red). The rack mountable PS 124 has a 1U high,
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PS 124, cont’d Input Power Apply power to the PS 124 using the supplied IEC power cor d ( ) or by installing the optional Flexible Conduit Adapter Kit b (Extr on part #70-228-02) ( ). c IEC connector/power supply — Plug the IEC cor d into this b connector and a 100–240 V AC sour ce. -OR- Optional conduit adapter plate — The IEC connector and c adapter plate can be r eplaced by this half-inch conduit EMT (Electrical Metallic T ubing) adapter plate, as shown in figur e 2. See “Input
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DC Outputs DC Output connectors — Connect the power cables from d devices that will r eceive power fr om the PS 124 to these 3.5 mm captive screw connectors. The PS 124 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 8. Extron MDA 5A RCA Audio Mini Distribution Amplifer Output 1 Output 2 Output 3 Output 4 Extron PS 124 12VDC 4A Power Supply Output 8 Out
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PS 124, cont’d Connections Input power — using the IEC power cord Use the included IEC power cor d to connect the PS 124 to a 100 V AC to 240 V AC, 50-60 Hz power sour ce. The circuit breaker used for this connection should W be rated 20 amps maximum. Input power — using the Flexible Conduit Adapter Kit The optional Flexible Conduit Adapter Kit, part # 70-228-02, provides a convenient means to replace the IEC power cord with conduit when required by local codes. The kit consists of: • O
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UL guidelines The Underwriters Laboratories (UL) guidelines listed below pertain to the installation of the flexible conduit option. • This unit is not to be used beyond its rated voltage range. • This unit must be wir ed to a UL listed distribution box. The electrical distribution box is not included with N either the PS 124 power supply or the Flexible Conduit Adapter Kit; the installer is responsible for obtaining and installing a UL Listed box. • This unit must be installed in acc
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PS 124, cont’d 3. Remove and r etain the six scr ews that attach the top cover of the PS 124 to the chassis (figur e 5). Lift the cover straight up. Remove three screws on each side. Figure 5 — Removing the top cover 4. Carefully lift the top cover up, taking car e not to r emove it completely. Rough handling of the top cover can tear wiring C that connects the front panel LED. 5. Use a standar d scr ewdriver to loosen the scr ews holding the hot and neutral wires on the side of the te
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7. From the rear panel end, pull the IEC connector (see figur e 4) out of the enclosur e. 8. Fr om the conduit kit, thr ead the 18-gauge power wir es through the length of the electrical conduit tube. 9. Install the EMT adapter plate (figur e 2) into the opening. Use the Phillips head scr ews r emoved in step 2 (figur e 4) to attach the adapter plate. If the conduit is attached to the EMT plate, skip step 10. N 10. Slide the conduit nut (figur e 7, below) over the bundle of wir es exi
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PS 124, cont’d Output power — wiring the DC output connectors The PS 124 can supply 12 VDC to multiple devices using 3.5 mm, 2-pole captive scr ew connectors. The combined curr ent draw of the connected devices must not exceed 4 amps. To verify proper polarity before connection to a device, N plug in the power supply with no load and check the output polarity with a voltmeter. Remove power before continuing. When verifying power supply polarity, the two W power cord wires must be kept
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Installing the PS 124 Ther e ar e several optional accessories for mounting the PS 124. They include the following Extr on part numbers: • RSU 129 1U 9.5" Deep Universal Rack Shelf (part #60-190-01) • RSB 129 1U 9.5" Deep Basic Rack Shelf (part #60-604-01) • MBU 125 1U Under -Desk Mounting (part #70-077-01) • PMK 350 Low Pr ofile Pole Mount Kit for Multiple Pr oducts (part #70-563-03) Additional mounting options may be found on the Extr on website at www.extron.com UL rack mounting g
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PS 124, cont’d Rack mounting For optional rackQuar mounting, terRac mount kStandar up todShelf four PS 124 power supplies on an RSU 129 9.5" 1U Universal Rack Shelf (part #60-190-01) (figur e 8) or an RSB 129 9.5" 1U Basic Rack Shelf (part #60-604-01). 1U Universal Rack Shelf 1/2 Rack Width Front False Faceplate 1/4 Rack Width Front False Faceplate Both front false faceplates use 2 screws. (2) 4-40 x 3/16" Screws Use 2 mounting holes on opposite corners. Figure 9 — Rack mounting the P
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Under-desk mounting In addition to using the PS 124 power supply on a rack or pr ojector , it can also be mounted under furnitur e (such as a desk) using the MBU 125 Under -Desk Mounting Kit (part #70-077-01). T o mount the PS 124 under a desk or other furniture, follow these steps: 1. Attach the mounting brackets to the power supply with the pr ovided machine scr ews (figur e 10). 2. Hold the power supply with the attached brackets against the underside of the furnitur e. Mark the l
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PS 124, cont’d Above-projector mounting PMK 350 The PMK 350, (part #70-563-03), is an above-pr ojector mounting kit that attaches to a 1" to 2" diameter pr ojector mounting pole (figur e 1 1). It can hold multiple devices in a variety of sizes. These instructions are for the PMK 350. If another N above‑projector mounting is used, follow the installation instructions for that kit. Extron IPL T S2 Ethernet Control Interface Extron PS 124 12 VDC 4 A Rear Plate Power Supply U-bolt Extron PM
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5. Assemble the U-bolt and the following parts in or der: a. Pass the legs of the U-bolt thr ough the slotted holes on the mount plate flange. b. Place the legs ar ound the ceiling pole. c. Pass the legs thr ough the holes in the contour ed base. The pole fits snugly into the depression in the center of N the contoured base. d. Pass the legs thr ough the holes in the L-shaped bracket. The bracket slots can accommodate 1.0" to 2.0" diameter N poles. The supplied square U‑bolt fits 1.
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PS 124, cont’d 14 PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
