Downloading With An On-Site Computer - DSC Maxsys PC4020 System Manual

DOWNLOADING
Note: Downloading is not to be enabled on UL listed
systems.
Downloading is the use of an IBM compatible computer to
program the PC4020 system. The computer can be
located either on site, or communicate over the phone.
The DSC downloading package version 5.3 or later
supports downloading to the PC4020.
See the downloading manual for details on specific
capabilities and the "DLS" section in the PC4020
Programming Guide for programming DLS options.
Downloading over Phone Lines
Make sure the "TIP" and "RNG" terminals are connected
to the phone line. Program the access code and the panel
I.D. code in the PC4020.
The PC4020 panel can call the computer, or vice versa.
"Ring Detect" or "User enabs DLS" must be enabled for
the PC4020 to detect when the phone line is ringing, the
time the computer is calling the panel.
The number of times the panel allows the phone line to
ring before answering is programmable, and the default
setting is 8 rings.
If the panel calls the computer, enable "User call up" and
program the phone number of the computer. Initiate the
call by entering [ ][6][Master Code][7].
The TM1 or RJ31-X jack connects single wires into one
end, and a telephone cord into the other end. Although
this jack is not necessary, it simplifies the connection of
the PC4020 to a modem. If a TM1 or RJ31-X is not readily
available, use a telephone cord. Plug one end into the
modem, cut off the other end, and wire the green and red
wires into the TIP and RNG on the PC4020.

Downloading with an On-site Computer

Phone lines are not necessary to download to the panel if
the computer is at the same location as the PC4020. The
tip and ring lines of the modem can be directly connected
to the tip and ring terminals on the panel.
A DTS-1 must be connected to the lines and in the local
mode.
Program the downloading access code and panel I.D.
code.
Program a zone for "Forced Answer". See "Zone Type" in
the Programming Guide. This zone is only meant to be
temporary, to initiate downloading. It can later be
changed back to the required zone type.
Make sure the access code and panel I.D. code are the
same in the panel and computer. A telephone number
must be programmed into the computer to initiate
communications, and any number entries are accepted.
Activate the computer to call the panel. When the
computer indicates "Dialing...No dial tone", press the dial
tone button on the DTS-1 until the modem dialing the
phone number is heard. Trip the zone programmed for
"Forced Answer". The panel will seize the phone line and
initiate communications with the computer. The computer
will then display the message "Connected to panel..." and
continue with communications.
The DTS-1 must remain connected to the phone line in
local mode during the downloading.
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