EN: Installation Sheet
Description
ATS1740 Databus Isolator / Repeater allows to electrically
isolate the RS485 data bus where voltage differentials may
exist and extends the bus maximum length. The ATS1740 also
allows to retrofit existing installations with Advisor Master
control panels and accessories.
Mounting the unit
ATS1740 has a standard Aritech "B" board footprint,
mountable in existing Aritech metalwork. ATS1740 provides
isolation between devices connected to the RS485 databus
used in the ATS Control panel. It enables you to use the local
ground for earth connection of isolated databus segments and
increases the maximum databus cabling run from 1.5 km to
6 km using WCAT 52/54 cable and three ATS1740. For each
isolated databus segment a local powering should be provided.
The local terminations and local ground for each segment
should be fitted.
Databus system and earth connection block diagram
Figure 1 legend
(A) Segment One: 1.5 km
(B) Segment Two: 1.5 km
(C) Segment Three: 1.5 km
(D) Isolation Barrier
(1) Advisor Master control panel
(2) RAS 1
LEDs
RX: Receiving data from the non-isolated databus.
TX: Sending data to the non-isolated databus.
Links
TERM: Link is fitted on the first and last device on the databus
segment.
: Earth connector.
Connection J1 comms
+12, 0V: 12 VDC supply input. 90 mA maximum with no other
peripheral devices connected.
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 WCAT
52/54; 2-pair twisted, shielded, data cable.
2 / 12
(3) ATS1740
(4) RAS 2
(5) PSU
(6) RAS 3
(7) ATS1201
Connection J2 ISO485
IG: Isolated ground (− from isolated PSU).
D+, D−: Isolated. Positive and negative data connection of the
RS485 databus.
Units can be up to 1.5 km from the control panel or 4 door
DGP, depending on the cable used. Recommended WCAT
52/54; 2-pair twisted, shielded, data cable.
Specifications
Supply voltage
10,5 to 13,8 V
Current consumption
90 mA max.
Dimensions
80 x 52 mm (size B board)
Weight
128 g
Operating temperature
−10 to +55°C
Relative humidity
< 95%, noncondencing
Regulatory information
Manufacturer
UTC Fire & Security Americas Corporation, Inc.
1275 Red Fox Rd., Arden Hills, MN 55112-6943, USA
Authorized EU manufacturing representative:
UTC Fire & Security B.V.
Kelvinstraat 7, 6003 DH Weert, Netherlands
Certification
EN 50131
EN 50131-1 System requirements
EN 50131-3 Control and indicating equipment
Security Grade 3, Environmental class II
Tested and certified by Telefication B.V.
1999/5/EC (R&TTE directive): Hereby, UTC Fire &
Security declares that this device is in compliance with
the essential requirements and other relevant
provisions of Directive 1999/5/EC.
2002/96/EC (WEEE directive): Products marked with
this symbol cannot be disposed of as unsorted
municipal waste in the European Union. For proper
recycling, return this product to your local supplier
upon the purchase of equivalent new equipment, or
dispose of it at designated collection points. For more
information see: www.recyclethis.info.
Contact information
www.utcfireandsecurity.com or www.interlogix.com
For customer support, see www.utcfssecurityproducts.eu
P/N 1077856 (ML) • REV A • ISS 17AUG12
(12 V
nom.)