Transcript
Headend Systems Nexus Model UC-2000 Up-Converter
The Nexus UC-2000 is designed to convert IF signals to standard RF channels where exceptional performance, efficiency, and reliability are required for fiber optic distribution systems.
DESCRIPTION The Nexus UC-2000 upconverter converts composite television IF signals to fixed television channels. It delivers output signals with virtually no degradation from the original IF signal. One UC-2000 chassis can contain two fixed channel upconverters that are available from 50 MHz to 1 GHz. The UC-2000 is fully compatible with TM the IH-2000 Intelligent Headend status monitoring system.
FEATURES
· Excellent noise and spurious performance · Input IF Automatic Gain Control (AGC) · Composite IF Bypass Loop (optional) · Alternate IF Input (optional) · Status monitoring and control · Compact size (2 channels per 1 rack unit height) · Intelligent Headend compatible · Optional Phase Lock for HRC, IRC, and off-air applications
Scientific-Atlanta 1-888-HEADEND
7-21
Nexus Model UC-2000 Up-Converter
Mechanical/Electrical
SPECIFICATIONS
Connectors F-type Power requirements 16 V DC, 2.1 A (without phase lock option) (supplied by Nexus PS-2000) Power requirements (IPS internal power supply) 108 - 132 V AC, 60 Hz Power requirements (UPS universal power supply) 90 - 240 V AC, 50 - 60 Hz Dimensions H 1.75 " (4.5 cm) x W 19.0 " (48.3 cm) x D 18.0 " (45.7 cm) Shipping weight 16 lbs. (7.3 kg) Operating temperature 77 ° F (25 ° C)
Input Parameters Format Composite IF IF input level 35 - 50 dBmV Frequency Video 45.75 MHz / Aural 41.25 MHz Return loss > 16 dB (40 - 50 MHz) Impedance 75 Ohms Input test point - 20 dB
Output Parameters RF output level 50 to 60 dBmV Output level stability ± 0.5 dB (within input range) Impedance 75 Ohms Frequency response ± 0.5 dB (over 6 MHz channel bandwidth) Frequency range 50 MHz - 1 GHz Return loss (over 6 MHz channel bandwidth) > 16 dB Spurious outputs (with an A/V ratio of 15 dB) < - 60 dBc Phase noise - 115 dBc/Hz @ 20 kHz offset (non-phase locked) RF front panel test point - 20 dB Frequency accuracy ±5 kHz (50 MHz - 550 MHz) ±15 kHz (550 MHz - 1 GHz)
Regulatory Approval FCC Part 15 approved UL certified (CSA/NRTL)
Options IPS Internal Power Supply UPS Universal Power Supply HRC HRC Phase Lock 1 IRC IRC Phase Lock 1 OA Off-Air Phase Lock 1 BP Composite IF Bypass AIF Alternate IF Input SF Special Frequency SCM Serial Control Module 1
available 50 MHz - 550 MHz
All specifications are subject to change without notice.
Scientific-Atlanta, Inc. http://www.sciatl.com United States: 4261 Communications Drive, Norcross, GA 30093, Tel: 770-903-5000; Fax: 770-903-4617 Canada: 7725 Lougheed Highway, Burnaby, BC, Canada, V5A 4V8, Tel: 604-420-5322; Fax: 604-420-5941 United Kingdom: Home Park Estate, Kings Langley, Herts WD4 8LZ, England, Tel: 44-1-923-266-133; Fax: 44-1-923-269-018 Italy: Via Fosso Centroni 4, Morena 000440 Rome, Italy: Tel: 39-6-7984-0030; Fax: 39-6-7984-0034 Argentina: 25 de Mayo 293, Piso 7A, Buenos Aires, Argentina 1002; Tel: 54-1-342-0321 or 54-1-342-1108; Fax: 55-11-893-7979 Singapore: 1 Claymore Drive, #08-11 Orchard Towers, Singapore 229594; Tel: 65-733-4314; Fax: 65-733-2706 Hong Kong: Suite 56 & 57, 5/F New Henry House, 10 Ice House Street, Central, Hong Kong; Tel: 852-2522-5059; Fax: 852-2522-5624 © 1996 Scientific-Atlanta, Inc. 7-22
All rights reserved.
Printed in USA
Rev. 3
Part # 075-2056
