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INSTRUCTION MANUAL
ZCM-48-550 Series
Distribution Amplifier
Model
ZCM-48-550
Description
The ZCM-48-550 is a professional-quality, broadband, indoor hybrid distribution amplifier, designed for RF
distribution systems such as apartment complexes, hospitals, schools, prisons, and hotels. This amplifier is
ideal for those RF distribution systems whose input source is a "cable drop", the output of a MATV/SMATV
headend, or the output of a small CATV headend.
The ZCM-48-550 amplifier provides frequency coverage of 54 to 550 MHz and has a flat 50 dB of
operational gain, which is variable using a built-in gain control. Variable slope control is also provided,
with an available range of 10 dB. The amplifier uses a single push-pull hybrid module and discrete driver
stages, capable of delivering high output levels with a low distortion, even in systems with 77 channels of
programming. A separate preamp (18 dB gain) and postamp (32 dB gain) are included with an external
RF loop used to provide overall output capability. (See Figure 1 for connection instructions.)
The ZCM-48-550 is housed in a compact, aluminum chassis that provides excellent heat dissipation. This
allows it to be operated at high ambient temperatures with no degradation of performance or reliability.
The ZCM-48-550 is provided with an external UL listed power transformer for use with 117 VAC power.
Features
• Hybrid IC Circuitry for High Output with Low Distortion
• Exceptional Temperature Stability Range of -10˚ C to +50˚ C
• External UL Listed Power Transformer
• Line Transient Protection
©2006 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
Stock No.
5534
Old Bridge, NJ 08857-1000 USA
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
www.blondertongue.com
One Jake Brown Road
651177300E
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Summary of Contents for Blonder tongue ZCM-48-550 Series
- Page 1 • Exceptional Temperature Stability Range of -10˚ C to +50˚ C • External UL Listed Power Transformer • Line Transient Protection 651177300E ©2006 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
- Page 2 ZCM-48-550 Instruction Manual The exclamation point within an The lightning flash with arrow- head symbol within an equilater- equilateral triangle is intended al triangle is intended to alert you to alert you to the presence of CAUTION to the presence of uninsulated important operating and main- “dangerous voltage”...
- Page 3 OUTPUT 18 dB GAIN Returning Product for Repair (or Credit) A Return Material Authorization (RMA) Number is required on all products returned to Blonder Tongue, regardless if the product is being returned for repair or credit. Before returning product, please contact the Blonder Tongue Service Department at 1-800-523-6049, Ext. 4256 or visit our website: www. blondertongue.com for further information.
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