SFJ-WPC-418-3ABALLAST CONTROL MODULE

INSTALLATION MANUAL Model WPC-418-3A Ballast Control Module The instructions in this manual are intended for professional installers. This product must be installed in accordance with national and local electrical code requirements. Installation text to be inserted here WARNING: This device operates under Part 15 of the FCC Rules. Any modification to this device not expressly authorized by Powerweb Technologies, Inc. may void the user’s authority to operate this device. CAUTION: This product must be installed by, or under the supervision of, a qualified electrical professional. For information contact: Powerweb Technologies 415 East Baltimore Pike Media, PA 19065 (610) 627-9600 1 2 BALLAST WIRING DIAGRAMS Model Number

August 16, 2004 Federal Communications Commission Authorization Division Re: Confidentiality Request regarding application for Part 15 certification of FCC ID: SFJ-WPC-418-3A As provided in Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request that the following exhibits that are included with this application be treated as confidential information and withheld from public display. ∑ Schematics ∑ Circuit description ∑ Block diagram These documents contain proprietary information that is not normally released to the public. Disclosure of these materials may be harmful to company and to our customers and would provide unjustified benefits to our competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Lothar Budike Jr. President & CEO
   
   
   
        
 
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SFJ-WPC-418-3A POWERWEB TECHNOLOGIES Test Report of an Intentional Radiator for Certification under Part 15 of the FCC rules DUT: Lighting control transceiver FCC ID SFJ-WPC-418-3A Model WPC-418-3A Date: 19-August-2004 Manufacturer: Powerweb Technologies, Inc. 415 East Baltimore Pike Media, PA 19065 (610) 627-9600 Prepared by: Control Design & Testing, Inc. 6010 Red Fox Drive Spotsylvania, VA 22553 (540) 582-2826 1 SFJ-WPC-418-3A POWERWEB TECHNOLOGIES A. DEVICE UNDER TEST The product is a transceiver used to control commercial and industrial fluorescent lighting systems. Though operable with standard fixtures, the device was designed specifically as a controller for dimmable fluorescent ballast fixtures. This product is designed to operate under the provisions of Part 15.231 of the FCC rules and RSS-210 in Canada. The frequency of operation is 418.00 MHz. nominal. The modulation mode is on/off keying using a compound pulse width format. The device is normally listening in receive mode. There are two events that cause transmission: 1) when a “dim” command is received and 2), when a “bulb out” condition is detected. In the first case, the device will acknowledge the command by transmitting two packets and then return to the receive mode. For the second case, when a “bulb out” is detected, the device will transmit two packets every four hours until the condition is corrected. The product is rendered on a single board housed in a custom fabricated metal enclosure. The transmitter circuit is a Radiotronix RTC-418-AS SAW based module. The receiver circuit is a Linx RXD-418-KH receiver/decoder module. Both modules are soldered to the circuit board as components. The device is powered from the mains through an onboard a step-down transformer. The antenna is detachable; constructed from a 1.2 meter length of 174/U coax with 18 centimeters of the braid removed from the end to form a ¼ wave monopole. The exposed center conductor is covered by a clear plastic sleeve secured with heat shrink tubing. The connector is a molded RCA pin type. This device requires professional installation and the prohibitions regarding connectors under 15.203 should not apply. B. MEASUREMENT PROCEDURE: RADIATED EMISSIONS Radiated emissions testing of this device was conducted at the Carl T. Jones test facility located in Springfield, Virginia. FCC Site #90490; IC Site #3101. The field strength measurements were conducted according to the procedures set forth in ANSI C63.4 (1992). The device under test was placed on a rotating turntable 0.8 meters high, centered at 3 meters distant from the measurement antenna. The device was placed in the center of the turntable and tested in the positions shown in the test setup photographs. 2 SFJ-WPC-418-3A POWERWEB TECHNOLOGIES For the purpose of transmit radiated emissions testing; the test sample was specially programmed to continuously transmit a stream of packets at the normal rate and duty cycle. The occupied bandwidth (Plot 1) was captured using this signal. Plot 1 The field strength measurements were taken using an HP8596E spectrum analyzer, an EMCO 3121C dipole set, an EMCO 3115 double ridge guide horn and an Avantek UJ210 preamp. The device was scanned from 30 MHz. to 5 GHz. and all emissions were noted. In this case, the only emissions detected were those harmonically related to the fundamental transmit frequency. 3 SFJ-WPC-418-3A POWERWEB TECHNOLOGIES At each detected emission frequency, the device was measured by rotating the turntable and adjusting the antenna height over a range of 1 to 4 meters to obtain the maximum output level. This procedure was performed with both horizontal and vertical antenna polarizations for each of the test positions shown in the test setup photos. The peak reading for each frequency was recorded in the fourth column in Table 1 below. CLIENT: POWERWEBFCC ID: SFJ-WPC-418-3A EUT: TRANSCIEVER PART 15.231DATE: 18-AUG-04 Ant. Polar. H/V 417.868H22.7-45.884.915524883110333 835.736H30.2-85.034.94062311033 1253.604H27.6-83.604.93552021033 1671.472V29.3-81.464.9552314500 2089.340V31.0-78.034.99975671033 2507.208H32.2-82.734.96663791033 2925.076H33.6-94.124.92111201033 3342.944V34.9-81.164.910896191033 3760.812V36.1-92.354.9345196500 4178.680V37.4-94.474.9314178500 Table 1 RADIATED EMISSIONS DATA Frequency In MHz. Peak Power uV/m@3m Peak reading dBm Ant. Factor dB ANTENNA: DIPOLES/DRG HORN Duty Cycle -dB FCC Limit uV/m@3m Corrected Power uV/m@3m C. DUTY CYCLE AND INTERVAL CALCULATIONS The occupied bandwidth and duty cycle measurements were made using an HP8594E spectrum analyzer and plotted with an HP7475A pen plotter. The computation for the duty cycle correction factor in column five in Table 1 is derived from the manufacture’s description of the data scheme and is verified by plots 2 through 5. The code format for this device is a compound pulse width (1/3–2/3) scheme consisting of 10 address bits, 8 data bits, 2 sync bits and a start pulse. Each bit is divided into 2 frames, where each frame is in the high state for either 1/3 or 2/3 of the frame length. 4 SFJ-WPC-418-3A POWERWEB TECHNOLOGIES The packets are separated by 15ms of dead time leaving 85ms out of any 100ms period occupied by data. The worst case would be packets that consist of all zeros where the on time of each packet would be equal to 66% of the total packet length. That is: all frames with 2/3 high state. Assuming the worst case, the following computation is applied. 85ms ٭ 0.667 = 56.695ms total on time 20log (56.695ms/100ms.) = -4.929 dB correction factor. As provided in Part 15.35 of the FCC rules, a correction factor of –4.9 dB is used for the calculations on the data sheet. Plot 2 5 SFJ-WPC-418-3A POWERWEB TECHNOLOGIES Plot 3 6 SFJ-WPC-418-3A POWERWEB TECHNOLOGIES Plot 4 7 SFJ-WPC-418-3A POWERWEB TECHNOLOGIES Plot 5 D. RECEIVER RADIATED EMISSIONS The receiver circuit is a single conversion superhetrodyne using a SAW stabilized local oscillator at 407.30 MHz. The device was locke…

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