United Technologies Interlogix ATS1741 Hoja De Instalación

ATS1741 RS232 to RS485 Interface Installation
Sheet
EN DA DE ES FI FR
EN: Installation Sheet
Mounting the unit
The board has a standard Aritech 'B' size footprint, mountable
in an existing Aritech metalwork.
Connections J2
•
+12 V: 12 VDC supply input. 100 mA maximum.
•
0 V: Negative supply.
•
D+: Positive data connection of the RS485 databus.
• D−: 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 type of cable used. Recommended
cable is WCAT 52/54; 2-pair twisted, shielded, data cable.
Connections J1
•
TX: RS232 data transmit.
•
RX: RS232 data receive.
•
CTS: Clear to send.
•
RTS: Request to send.
•
GND: Isolated RS232 ground.
LEDs
•
TX LED: LED flashes to indicate data is being received in
as RS232 and transmitted out as RS485.
•
RX LED: LED flashes to indicate data is being received in
as RS485 and transmitted out as RS232.
© 2019 UTC Fire & Security Americas Corporation, Inc.
IT NL NO PL PT SV
Extended distances between Titan and
ATS1801
ATS1741 (RS485 to RS232 interface) to PC
ATS1741 (RS232) PC (RS232)
Pin Names Pin Names
TX RX
RX TX
*CTS *Not connected
*RTS *Not connected
GND GND
*Link RTS-CTS *Link RTS-CTS
ATS1741 (RS485 to RS232 interface) - ATS1741 (RS485 to RS232
interface)
ATS1741 ATS1741
(RS485) (RS485)
+12 V +12 V
0 V 0V
D+ D+
D−
D−
Caution: Do not power the ATS1741 from different power
supplies unless you disconnect the +12 V wiring between
those units. Ensure the power supplies are isolated, especially
the GND.
ATS1741 (RS485 to RS232 interface) – ATS1801 (Computer/Printer
interface)
ATS1741 (RS232)
TX
RX
CTS*
RTS*
GND
*Link RTS-CTS
Data bus System Via Modem
The shield of each length of data cable is only connected to
earth at one end.
The connections between ATS1741 and the modem are as
follows.
P/N MAINST-ATS1741 (ML) • REV B • ISS 13JUN19
1 / 16
DB25
3
2
6, 8, 20
–
7
4-5
Remarks
Connect to a 12 VDC power supply from
one control panel
ATS1801 Port Computer
RxD
TxD
*Not connected
Not connected
GND
*+12 V on CTS
DB9
2
3
1, 4, 6
–
5
7-8