Sur-Gard SG-DV4420, Руководство пользователя

Страница: 4 / 23

4
INSTALLATION
running close to it, to avoid electrical noise causing
disturbance to the components.
You can use up to 5 SG-DV4420 on 1 F1/F2 subset
provided they are in the same location or 1 SG-DV4420
and 1 other subscribers control such as SG-DV1660, by
using the SUR- GARD SG-DS1 module (Y connector).
You have to connect together the 24V negative terminals
of both units, separate the ID codes and program a
different all call select for each one.
F1/F2 SUBSET
1. Remove power to the F1/F2 subset by unplugging the
A.C. adaptor from the 120 VAC outlet (if installed).
Do not remove the plug from the “Adapt" input of the
F1/F2 subset while the adaptor is powered as it may
cause an arc at the input and damage the F1/F2 subset.
2. If the telephone company installed a cable on the
"Terminal" input of the F1/F2 subset, disconnect it
and connect the 6 pin modular cable MCBL6 (6 ft.)
included with the SG-DV4420. Then connect the cable
to the SG-DV4420 Fire Transmitter. A custom length
6 pin modular cable(MCBL-C) is also available on
special order from Sur-Gard. The custom cable is
available in any length up to the maximum run length
of 50 feet. See the "F1/F2 Subset Connections" diagram
on page 10.
3. The F1/F2 subset should be installed close to the
control panel. However, if it is impossible, follow
these precautions:
• Avoid cable runs close to noise generators like
power transformer, motor, fluorescent tube, etc...
• If you can’t avoid this, or the F1/F2 subset is too
far from the control panel, it is necessary to use
low capacitance shielded cable to connect the
F1/F2 subset to the control panel.
RECOMMENDED MAXIMUM WIRE RUN
The RS-232 communication (Rx & Tx) has a
recommended maximum wire run of 50 feet, using Sur-
Gard's 6 pin modular cable.
The power supply (24Vdc) has a recommended maximum
wire run of 100 feet using:
• #18 awg unshielded 4 conductor cable
• #22 or #24 awg unshielded 4 conductor cable with
2 wires connected in parallel for each of the 24V
DC
Connections.
FOR LONGER DISTANCES
For RS-232 communication distances greater than 50 feet,
shielded cable with Sur-Gard's SG-DS1 connectors at
each end must be used. One SG-DS1 has to be installed
inside the Fire Transmitter cabinet and another one inside
the F1/F2 subset box, (see Appendix B for theSG-DS1
wiring diagrams). The maximum distance maybe extended
by using a shielded cable such as those described below.
BENCH TESTING
The SG-DV4420 contains factory default programming.
Any additional programming required is done through
the SG-DVT1 tester. For many applications all that will
be required is to enter the ID number. If you need help,
talk to your Sur-Gard distributor.
Program the SG-DV4420 using the SG-DVT1 Tester
(with program version 5.0 or later) as an access terminal.
The SG-DVT1 is plugged into the SCHED-3A line modular
jack. The program select jumper J2 should be removed
from the SG-DV4420 circuit board.
Connect a 2.7K end of line resistor between the S1 input
terminal and the GND terminal. Connect a jumper on each
normaly closed supervisory zone S2, S3 and S4 input.
Connect 2 loops to the A1 and A2 Sprinkler/fire class A
input terminals - out to - in , and + out to + in. To
completely test your Fire system including the communicator
data, it is necessary to connect the unit to a test set, such
as the SG-DVT1 (see system testing procedure).
Connect a 14Vac, 20VA transformer to the AC terminals.
Before plugging in the transformer, be sure the circuit
board is not resting on anything metallic which may
cause a short.
NOTE: The SG-DV4420 will not start up if AC is OFF
and the battery is low.
MOUNTING THE PANEL
Select a dry location, close to an unswitched AC source,
close to a ground connection, and close to the F1/F2
subset (modem) location.
Remove the printed circuit board and mounting hardware
from the cardboard retainer inside the panel. Before
attaching the cabinet to the wall, press the five white
nylon printed circuit board mounting studs and the ground
connection screw into the cabinet from the back.
Pull all the cables into the cabinet and prepare them for
connection before mounting the circuit board to the
back of the cabinet. Press the circuit board down onto
the mounting studs.
With power off, wire the DV4420 as shown on fig. #1. All
normally closed (N/C) loops require a jumper if not used.
The connections to the F1/F2 subset are shown on fig.
#2. Avoid running the cable close to noise generators
like power transformer, motor, fluorescent tube, etc...
HOOK-UP PROCEDURE
DO NOT connect the transformer or battery until all other
wiring has been connected (See power-up procedure).
Connect a ground cable from the cabinet ground connection
by the shortest and most direct route to a grounding rod
and to the Earth Ground Terminal on the panel.
Connect zone cables to zone loop inputs and put jumpers
or end of line resistors as required on any unused zones.
Connect wires supplying power to detectors to the auxiliary
supply. Make sure that the PC board is clear of wire