Xerox 4235, Руководство по планированию установки

Страница: 41 / 148

SITE PLANNING
XEROX 4235 LPS INSTALLATION PLANNING GUIDE 3-7
computer system. This communications equipment may
consist of devices such as modems.
Modem or modem eliminator
In general, your 4235 LPS needs a modem if it is more than 60
feet from your host computer system. For short distance
connections, your 4235 LPS requires a modem eliminator or
null modem. Use a null modem for asynchronous serial
communications. Use a modem eliminator for synchronous
serial communications.
If you have any questions about ordering a modem or modem
eliminator, contact your Xerox sales representative.
Telephone line and jack
If your 4235 LPS requires a modem, you need to place an order
with your telephone company for a telephone line to be
installed at the chosen site. Your telephone company
representative can give you the lead time required so the
telephone line and telephone are available when your 4235 LPS
is installed.
Gender changer
Verify if your interface cable requires a gender changer for
proper connection to your 4235 LPS.
Interface controller
If you use an interface controller, do not place this equipment in or
on the 4235 LPS. You must provide adequate space and meet all
electrical and environmental conditions for this device by following
the requirements of the manufacturer.