NBS132

Page 1 of 1 FCC ID: NBS132 FCC ID LABEL AND LOCATION Bottom of EUT The bottom of the EUT is 20 x 10.7 cm; the Label is centered on bottom Actual Label The FCC ID Label is 6.2x1.3mm (within Rectangle). The material is W.H. Brady Laser Plate 221. The material and adhesive is U.L. listed for mounting on a plastic substrate, FCC Label

Page 1 of 1 FCC ID: NBS132 Theory of operation: The USB-8H is a freestanding communication device with power supplied by its own power supply and data passed back and forth with the host machine via the standard USB cable. The Intel 80930A USB microprocessor (runs on a 12 MHz crystal) handles all USB data transfer timing and passes the outbound data to the two 16C554 Four Port Communications Controllers (run on a 7.3728 crystal.) The 16C554s drive the eight RS232 comm ports and handles all data encoding and transfer handshaking. The maximum data rate possible by any port is 230k bps. The I/O circuitry consists of appropriate drivers and receivers and TVS protection devices. Incoming data (from peripheral equipment hooked to the four ports) moves in the opposite direction as described in the above paragraph. The Case is nonconductive plastic.

Radiometrics Midwest Corporation Test Document RP-3846A Issue Date: August 25, 1998 This report concerns: Original grant Equipment type: Computer Peripheral (Universal Serial Bus) Transition Rules per 15.37 are not requested. Tests Performed ForTest Facility Central Data Corporation 1602 Newton Dr. Champaign, IL 61822 Radiometrics Midwest Corporation 12 East Devonwood Romeoville, IL 60446 Phone: (815) 293-0772 FAX: (815) 293-0820 [email protected] Test Report Written ByTest Report Approved By Charles Grimes EMC Engineer Joseph Strzelecki Senior EMC Engineer NARTE EMC-000877-NE MEASUREMENT/TECHNICAL REPORT Central Data Corporation Model USB-8H FCC ID: NBS132 APPLICATION FOR CERTIFICATION RF Emission Measurements Performed For Determination of Compliance with the US Code of Federal Regulations Title 47, Chapter I, FCC Part 15 Subpart B As Required for Certification for Unintentional Radiators Tests Performed ForFCC IDRadiometrics Test DocumentPage Central Data Corporation NBS132RP-3846A2 of 11 Table of Contents 1.0 General Information ..................................................................................................................3 1.1 Product Description ...............................................................................................................3 1.2 Related Submittals ................................................................................................................3 1.3 Tested System Details...........................................................................................................4 1.5 Test Methodology ..................................................................................................................4 1.6 Test Facility............................................................................................................................4 1.7 Test Equipment .....................................................................................................................5 2.0 System Test Configuration........................................................................................................5 2.1 Test System and Justification ................................................................................................5 2.2 EUT Exercise Software..........................................................................................................6 2.3 Special Accessories...............................................................................................................6 2.4 Equipment Modifications........................................................................................................6 Figure 2.1 Configuration of Tested System .................................................................................7 3.0 Conducted Emission Data ........................................................................................................8 4.0 Radiated Emissions Data..........................................................................................................9 4.0 Radiated Emissions Data (Continued) ....................................................................................10 4.1 Field Strength Calculation....................................................................................................11 Notice: This report must not be reproduced (except in full) without the written approval of Radiometrics Midwest Corporation. Tests Performed ForFCC IDRadiometrics Test DocumentPage Central Data Corporation NBS132RP-3846A3 of 11 1.0 General Information 1.1 Product Description The Model USB-8H (referred to as the EUT in this report) is a Serial Port Server. The EUT is manufactured by Central Data Corporation. The EUT is a freestanding communication device with power supplied by its own power supply and data passed back and forth with the host machine via the standard USB cable. The Intel 80930A USB microprocessor (runs on a 12 MHz crystal) handles all USB data transfer timing and passes the outbound data to the two 16C554 Four Port Communications Controllers (run on a 7.3728 crystal.) The 16C554s drive the eight RS232 comm ports and handles all data encoding and transfer handshaking. The maximum data rate possible by any port is 230k bps. The I/O circuitry consists of appropriate drivers and receivers and TVS protection devices. Incoming data (from peripheral equipment hooked to the four ports) moves in the opposite direction as described in the above paragraph. The Case is nonconductive plastic. 1.2 Related Submittals Central Data Corporation is not submitting any other submittals related to the EUT. Tests Performed ForFCC IDRadiometrics Test DocumentPage Central Data Corporation NBS132RP-3846A4 of 11 1.3 Tested System Details The FCC ID's for all equipment, plus descriptions of all cables used in the tested system which have grants, are: Model Number Serial NumberFCC ID Manufacturer & Description Cable Descriptions M/N: USB-8H (EUT) S/N: NBS132Central Data Serial Port Server Two USB (1.5m, SH) two Serial (1.8m, SH) M/N SA051A5F-11N/ACentral Data Power supply for USB-8H DC Cord: (1.5m, US) AC cord: (2m, US) M/N: WY-55ES S/N: 0X415100033 N/AWyse Terminal 1 Power (1.8m, US) Serial (1.8m, SH) M/N: WY-55E5 S/N: 0X416800578 N/AWyse Terminal 2 Power(1.8m, US) Serial (1.8m, SH) M/N: LPMini-tower S/N: 0008766183 DOCGateway 2000 Desktop Computer Power (1.8m, US) See peripherals for cables M/N: 2196003-XX-XXX S/N: 50480939 D7J2196003-XXGateway 2000 Key Board 1.5m Integral M/N: NX-1001 S/N: 510010542390 B6DZ150LStar Printer Power(1.8m, US) Metal Shell Prn. (1.8m, SH) M/N: 500-069CS S/N: 15025C042421 BEJCS592Gateway 2000 VGA Monitor Video (1.8m, I) Power(2.2m, US) M/N: 97599 S/N: 01634257 C3KKMPSGateway 2000 Mouse Serial (2m, US) Note: SH = Shielded; US = Unshielded; m = Cable Length in Meters, 1.5 Test Methodology The test procedures used are in accordance with the ANSI document C63.4-1992, (July 17, 1992) "Methods of Measurement of Radio Noise…

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