Rf/catv/matv Transmission Systems Osd481a/osd483a

Transcript

RF/CATV/MATV TRANSMISSION SYSTEMS OSD481A/OSD483A CATV/MATV MODEM PAIR APPLICATIONS APPLICATIONS ▲ CATV networking ▲ MATV networks for resorts, hospitals ▲ Secure reticulation of television and data in defence and government sites and campuses ▲ Distance learning ▲ UHF/VHF radio links ▲ Very wideband multiple channel data transmission FEATURES AND BENEFITS ▲ Available to support 60 channel networks ▲ Can support star networks with up to 16 remote nodes ▲ Operates over from 5 to at least 50km of singlemode cable depending on the laser employed in the OSD481A transmitter modem ▲ Optionally available in a form suitable to RF over fiber signal distribution ▲ Very cost effective - you pay only for what you really need TYPICAL APPLICATION DESIGN Point-to-Point Link : OSD481A OSD483 1 fiber 60ch CATV or other 30-860MHz RF signal fiber 1 Station 1 fiber 2 Station 2 fiber 3 Station 3 fiber N Station N 1 Point to N Points Link : OSD483 60ch CATV or other 30-860MHz RF signal 60ch CATV or other 30-860MHz RF signal 1xN Splitter OSD481A 60ch CATV or other 30-860MHz RF signal OSD483 60ch CATV or other 30-860MHz RF signal fiber OSD483 OSD483 60ch CATV or other 30-860MHz RF signal 60ch CATV or other 30-860MHz RF signal ORDERING INFORMATION OSD481A/G1 OSD481A/G2 OSD481A/G3 OSD481A/G4 3mW transmitter 6mW transmitter 12mW transmitter 20mW transmitter OSD483A Option RF 20mW transmitter 50Ω input/output impedance with Type N connector OPTICAL SYSTEMS DESIGN PTY LTD 7/1 Vuko Pl. Warriewood N.S.W. Australia 2102 Telephone: + 61 2 9913 8540 Fax: +61 2 9913 8735 Website: www.osd.com.au E-mail: [email protected] 1 SPECIFICATIONS OSD481A TRANSMITTER Electrical Interface 90dBuV/channel nominal into75Ω, channels to be within ± 1.0dB of each other RF Input Level Control User adjustable over 30dB range in 2dB increments Transmission Bandwidth 30MHz - 900MHz ± 1dB Optical Wavelength 1310 ± 20nm with 1550nm and CWDM wavelengths optionally available. Contact OSD for details Optical Output Level +4.8 to +5.4dBm with grade 1 laser +7.8 to 8.4dBm with grade 2 laser +10.8 to 11.4dBm with grade 3 laser +13.0 to +13.6dBm with grade 4 laser Channel Loading 60 PAL-B channels (4% typical modulation index) Indicators and Alarm Contacts Power RF signal present Laser alarm OSD483A RECEIVER Operating Wavelength 1250 – 1600nm Output Level 90dBuV nominal/channel, output attenuator set to minimum, 4% modulation index, -5dBm optical input level Receiver Bandwidth 30 - 860MHz ± 2dB (in conjunction with OSD481A) RF Output Level Control User adjustable over 30dB range in 2dB increments Carrier to Noise Ratio >53dB at a receive power level of -2dBm with 60 PAL-B channels from a OSD481/G3 transmitter Receive Saturation >2dBm Indicators and Alarm Contacts Power Optical power present RF signal present PHYSICAL RF Connector F type (N type for Option RF) Optical Connector SC/APC Alarm Connector 9 pin female D Operating Temperature -20 to+55°C Relative Humidity 0 to 95% non-condensing Power Requirements 115/230VAC ± 15% 47-63Hz @ 40VA OR -40 to -56VDC @ 40VA Weight 3kg Dimensions (mm) 432W x 210D x 44H (1RU, 19 rack mounting) Doc ID: 10248106 Specifications contained herein are correct at the time of printing. We reserve the right to alter specifications without notice. 2