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Chapter 2 – Installation
Multi-Tech Systems, Inc. “ZDX”-Style Device Rack – PN S000338A 5
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CHAPTER
HAPTER HAPTER
HAPTER 2 - I
2 - I2 - I
2 - INSTALLATION
NSTALLATIONNSTALLATION
NSTALLATION
Power Up Preliminaries
The MultiModemZDX modems are shipped with the DTR signal controlled by the interface and the
modem’s Command mode enabled. With rack-mount modems, we generally assume that your modems
are used in a central site computer environment, with the modems connected to a mini or mainframe
computer. We expect the main purpose will be to automatically answer incoming calls from remote users.
Command mode should be disabled unless you wish to give the modem commands. Leaving Command
mode enabled offers the possibility of a user calling into the modem and reconfiguring it, or causing it to
dial out. Refer to the appropriate modem owner’s manual to configure the modem for your application.
Safety Recommendations
The following safety recommendations should be observed when installing a Multi-Tech ZDX Rack.
• Never install telephone wiring during a lighting storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
• Never touch insulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
• Use caution when installing or modifying telephone lines.
• Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a
remote risk of electrical shock from lighting.
• Do not use the telephone to report a gas leak in the vicinity of the leak.
• This product is for use only with listed computers, or equivalent.
Installation
Perform the following procedure to install the ZDX rack and install up to 12 ZDX modems in the rack.
1. Unpack the rack and check all items against the shipping list to ensure that you have received the
correct items.
Rack Components
A. Rack
B. Power Cord
C. Owner's Manual
2. Inspect the rack for visible shipping damage. If damage is observed, do not power-on the rack;
contact Multi-Tech's Technical Support for advice (refer to Chapter 3).
3. If no damage is observed, mount the rack in a standard 19-inch wide rack enclosure.
4. Open the rack front door.
5. Unpack the ZDX modems to be installed in the rack.
Note: The plastic feet can not be attached to the modem due to height clearance.
Note: The typical power supply cord is not used when the modem is installed in a rack.