Owner`s manual

12
ZDX Series Modem Racks Owner's Manual
Power-Up Preliminaries
MultiModemZDX modems are shipped with Command mode
enabled and the DTR signal controlled by the interface. It is
generally assumed that rackmount modems are used in a
central site computer environment (i.e., connected to a mini or
mainframe computer) to automatically answer incoming calls
from remote users.
Unless you need to give the modem commands, you should
disable Command mode. Leaving Command mode enabled
offers the possibility of a user calling into the modem and
reconfiguring it, or causing it to dial out to another location.
Refer to the appropriate modem owner’s manual to configure
the modem for your application.
Safety Warnings
1. Never install telephone wiring during a lightning storm.
2. Never install telephone jacks in wet locations unless the
jack is specifically designed for wet locations.
3. Never touch uninsulated telephone wires or terminals
unless the telephone line has been disconnected at the
network interface.
4. Use caution when installing or modifying telephone lines.
5. Avoid using a telephone (other than a cordless type)
during an electrical storm. There may be a remote risk of
electrical shock from lightning.
6. Do not use the telephone to report a gas leak in the
viciinity of the leak.
7. This product is for use only with listed computers, or
equivalent.