Pacific Research Solutions PET-820 User Manual
Page 45
Pacific Research
PET-820 User Manual
Page 44
5.1.4
DIAL AND COMMUNICATION DELAYS
The PET-820 allows for delays before going OFF HOOK, dialing a telephone number and begins communication of the alarm
message. These delays are designed to allow time for disabling the PET-820, dial tone, telephone network connection and
ringing. Each of these delays are programmable, reference SECTION 4.0 for more information on programming these
parameters.
5.2
DTMF COMMUNICATION PROTOCOL
The DTMF protocol was designed for use with the Remote Control Panel, details of this protocol are listed in the User
Manual for this unit. For more information on the Remote Control Panel, you should contact your local dealer or Pacific
Research.
5.3
SERIAL COMMUNICATION PROTOCOL
If the PET-820 includes the optional RS-232
serial port, you can connect the system to a
terminal or printer to be used in configuring
the system or monitor status information.
For additional information on connecting
the serial port, refer to figure-5.1. The
serial port connector uses the same pin
assignment standards as a PC, using a
standard serial printer cable should be
adequate in most all applications. If you
plan on building your own cable, note that
for most all application the only connections
that are required are TX Data, RX Data and
Ground.
FIGURE - 5.1