Specifications

23
INSTALLATION & SETUP • CONNECTING EQUIPMENT
TECHNICAL SUPPORT 978-486-0086 • [e-mail] • www.burk.com
Connecting
Equipment
Modems
There are several ways to communicate with your VRC2500. In
addition to the direct COM port connection, you can use a PC
with a modem to communicate remotely with the site modem
connected to a VRC unit. If you connect a dial-up modem to the
Dial-Up port on the VRC unit, you can also use any Touch-tone™
telephone to retrieve information or issue commands. The
following pages describe how to install and configure different
types of modems.
Follow the manufacturer’s instructions for installing the modem
into the monitoring PC.Your PC modem does not need to be
configured through the VRC software utilities.You may manually
adjust the DIP switches as needed according to the instructions in
the modem User Guide.
Recommended Modems
You may use an internal or external full feature modem for your
monitoring PC. Site modems must be external.
The recommended dial-up modem is the U.S. Robotics 56K V.90
External Fax Modem.
The recommended two-wire and four-wire leased line modems
are Motorola V.3400, MultiTech MT2838BL and MultiTech
MT5600BL. These recommendations are subject to change
without notice.
DIAL-UP MODEM CONFIGURATION
DIP Switches The required DIP switch settings for the U.S.
Robotics Sportster® 33.6 and 56K V.90 are shown below.
If you are using a different modem, the DIP switches (or
command equivalents) must be configured to enable your modem
to operate in the same manner. The table on the following page
defines the operational parameters associated with each DIP
switch on the U.S. Robotics 56K V.90 modem.
DIP Switch Settings for Modem connected to
PC or Dial-Up Port
DO NOT use a cellular
modem. A cellular
connection is not reliable
and although it may support the
required baud rate for a VRC2500
system, it is not supported by
Burk Technology.
!
A Winmodem
®
, or any
software modem, does not
provide the proper control
signals required by the VRC
software and hardware.
✍
PC or Voice (Dial-Up Port)