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Take care that the NTC is positioned in free air far from the heat
sink or any other component. Its function is to measure the
batteries working temperature inside the cabinet. The following
table should be taken into account to measure the charge voltage.
15°C
13.74 VDC
20°C
13.65 VDC
25°C
13.56 VDC
30°C
13.46 VDC
35°C
13.37 VDC
Measure the voltage at the battery terminal (Batt + and −) with no
battery attached.
Cabling ATS1203/ATS1204 with ATS control
panel
Note:
Preferred system databus wiring — see Figure 4. Refer to the
ATS Control Panel Installation Guide for a more detailed description
of the cabling.
The "TERM" link is on the first and last devices on the system
databus. In a "star" wiring configuration, the "TERM" link is only
fitted on the devices at the ends of the two longest system
databus cable runs.
1.
TERM link fitted (first device on local databus).
2.
Control Panel ATS20/26/30/36/40/45/4600.
3.
ATS1105 LCD RAS (TERM switch not set to ON).
4.
Separate 12 V power supply. (Required if RAS is more than 100 m
from the nearest panel or DGP. Connect "−" to "−" of the databus).
5.
Preferred data cable type is WCAT 52 (2 pair twisted).
6.
TERM link fitted (last device on local databus).
7.
Earth connection to connect shield*.
8.
Any data gathering panel like ATS1201, ATS1203, ATS1204,
ATS1210, ATS1220 or ATS125x.
*Connect cable shield to one device only.
See: "System databus connection" and earthing details.
Connection diagram ATS1203/ATS1204
See Figure 5.
1.
AC connection from transformer
2.
System earth
3.
12 V battery
4.
Earth connection for cable screens (shields)
5.
Auxiliary power supply output
6.
System databus
7.
Normally closed panel tamper contact
8.
Normally closed panel tamper contact
9.
Normally closed alarm contact
10.
Normally closed tamper contact
11.
Interface to ATS1202 input expanders
12.
External 8Ω siren speaker or siren
13.
1 kΩ resistor must be fitted if external siren not connected
14.
Clock-out Interface to plug on output expansion or 4-way non-
clocked output expansion (e.g. ATS1810).
P/N 1064130 • REV 3.0 • ISS 10MAR09
15.
Dipswitch to set DGP address
16.
Link to select +12 VDC to output board
17.
Link to terminate databus
J1
RS485 system databus & box tamper connections
J5/J6
Zones
J7
Interface to ATS1202 input expanders
J8
Clock-out Interface to plug on output expansion or 4-way non-
clocked output expansion (e.g. ATS1810)
J13
External siren
J14
Auxiliary power output
J17
AC connection from transformer and battery power
Notes
1.
If the battery load resistor is enabled, output 8 is no longer
available for non-clocked output expansion boards.
2.
In case the DGP is set for 2 DGPs to enable all 32 outputs, the
control panel programming should be set up to poll the DGP
address and the address + 1.
Links
TERM
Termination of databus. Only to be used on first and last device
on the local databus.
+12V
Connect +12 VDC to output board.
DGP DIP switch settings
See Figure 2.
Address: Select DGP address. Set switches 1 to 4 to OFF to disable
the DGP (see Figure 2 for correct address settings).
LEDs
Tx
Red LED flashes when remote units (RAS and DGP) are replying to
polling.
Rx
Yellow LED flashes when panel is polling remote units. It must
always be active.
System databus connection
The system databus is used to connect Data Gathering Panels (to
provide extra zones) and Arming Stations to the ATS control panel.
Remote devices can be up to 1.5 km from an ATS control panel.
Arming Stations and Data Gathering Panels must be connected
via a 2 pair twisted shielded data cable from the system databus
connection. (WCAT 52 is recommended).
The shield of the data cable should be connected to earth at the
ATS control panel or any other earth point. However it should be
left disconnected at the other end.
It is recommended that where the distance between the arming
station and the nearest device is more than 100 meters, a
separate power supply be used to power the arming station.
To power the arming station, do not connect "+" from the system
databus. Connect "+" of the local power supply to "+" on the
arming station and connect 0 volts from the power supply and 0
volts from the system databus to the arming station terminal
marked "−".
See also "Cabling ATS1203/ATS1204".
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