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Chapter 1 – Introduction and Description
Multi-Tech Systems, Inc. “ZDX”-Style Device Rack – PN S000338A 4
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1 - INTRODUCTION AND
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DESCRIPTION
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ESCRIPTION
Introduction
Welcome to the world of data communication. You have one of the finest modem racks made today. This
owner's manual provides information that will enable you to install and operate the MultiModemZDX fax
modems within your Multi-Tech ZDX modem rack. This manual covers the description of the modem rack,
its technical specifications, power supply, procedures for modem installation, RS232C and phone line
connections and powering up mode.
Description
The ZDX rack makes it easy for you to see what is happening with your data communications. Each
modem has its own LED display, with indicators such as Transmit Data, Receive Data, Carrier Detect,
Speed Status, Off Hook, Terminal Ready, Error Correction, and Fax mode. The ZDX rack holds up to
twelve modems and a redundant power supply.
The rack is available in both 115V and 230V versions. The rack measures 19 inches wide by 5 ¼ inches
high, is usually mounted in the same cabinet as your computer, or can be enclosed in a separate cabinet
of its own. Installation of the modems is accomplished by simply opening the rack door and sliding in the
modems. RS232C cables and phone cords are connected to the modem's connectors on the back of the
rack.
Technical Specifications
Rack Capacity: Up to twelve modems
Connectors: IEC 320 Inlet Power Connector
Dimensions: 19" wide x 5 ¼" high x 7 ¾" deep
48.26cm wide x 13.28cm high x 19.6cm deep
Weights: Rack with power supply: 8lbs. (3.7kg)
Rack with power supply and 12 modems:14½lbs. (6.6kg)
Power Supply Input: 90 - 240 Volts AC, 50/60 Hz, 2.0A
2 amp sloblo fuse
Output: +9 volts DC regulated
4.4 amps maximum
Power Consumption: 40 watts with a fully loaded rack
Ambient Temperature: 32° to 104° F (0° to 40° C)
Indicators: Two LED’s indicate presence of 120/230 Volts AC power and 5 Volts DC power