GE ATS1744 Kurzanleitung

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Quadruple databus isolator
Introduction
The ATS1744 quadruple databus isolator is a functional isolator for the
ATS databus. It can isolate 4 ATS-slave loops. In principle, each loop
supports all peripherals in one area, which means that the isolator can
isolate 4 areas.
Shorts or open in one or more slave loops will not interrupt the other
slave loops and the master loop.
Mounting the unit
Mount the ATS1744 PCB in any existing ATS control panel enclosure that
supports the BB format.
Connections
J1 COMMS of master loop
+12 / 0V 12 VDC supply input. 39 mA max with no other peripheral
devices connected.
D+ / D- Positive and negative data connection of the RS485
databus.
J2 to J5 COMMS of slave loop
+12 / 0V 12 VDC supply output. 300 mA max.
D+ / D- Positive and negative data connection of the RS485
databus. Units can be up to 1.5 km from the 4-door DGP or
control panel, depending on the cable used.
Recommended: WCAT52/54; 2-pair twisted, shielded, data
cable.
J12 earth connector
Connect the shield of the ATS COMMS cable. Ensure that the shielding of
one cable must be connected to one system earth. See the ATS control
panel installation guide.
Fuse connections
F1 to Comm. Slave 1
F2 to Comm. Slave 2
All fuses F1 to F2: 315 mA, fast 20x5.
ATS1744
F3 to Comm. Slave 3
F4 to Comm. Slave 4
2006 GE Security B.V.
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www.gesecurity.net
Quadruple databus isolator
LED'S
RX LED (yellow) flashes to indicate polling data is being received on
the system databus from the ATS control panel. If the LED does
not flash, the control panel is not operational or the databus is
faulty (usually cabling).
TX LED (red) flashes to indicate that any DGP or RAS is replying to
polling from the ATS control panel. If the RX LED flashes but the
TX LED does not, it indicates that the DGP is not programmed to
be polled in the control panel or that it is addressed incorrectly
or any of the databus is faulty.
Sy LED (red) flashes to indicate that any DGP or RAS connected to
Slave y (1 to 4) are replying to polling from the ATS control
panel. If the Sy LED is off, the slave loop is shorted.
Links
TERM System databus term link. Refer to the ATS control panel
installation guide.
Maximum current rating and fuses in a full system
In a full system you can connect more ATS1744 isolators. A control panel,
which controls 16 areas, will most probably have 4 isolators. However all
slave loops are fused with 315 mA. In this situation, the total of 5040 mA
(16x315 mA) would blow the ATS bus fuse on the control panel. Hence,
bear in mind the fuse capacity of the control panel when you calculate
the bus device current in the system.
Technical data specifications
Operating temperature -10 to +55°C
Humidity non condensing 95%
Power consumption 39 mA
Environmental class EN50131-1 Class II: Indoor-General (E.g.
Staircase)
Installation class Class C
ATS1744
1057381
11/2006