Data Sheet

INTR-C v.1.0/II
Interface RS485-TTL EN54C-LCD
CODE:
TYPE:
Interface
Pulsar
®
DESCRIPTION
The RS485-TTL „INTR-C” interface is intended for cooperation with PSUs of the EN54C-LCD series.
Interface enables connecting of PSU to RS485 bus remaining galvanic isolation. Communication in RS485 bus
is due to a two-way channel, differential in a half-duplex system where transmitting and receiving data is
alternate
EN
Tel. [phone], fax: [phone], www.pulsar.pl, e-mail: [e-mail]
Features :
· power supply via „SERIAL” socketc
· permission of Scientific and Research Centre for Fire Protection - National Research Institute for use with
power supplies of EN54C-LCD series
· connection of PSU of EN54C-LCD series with RS485 bus
· a possibility of connection of up to 247 interfaces to a RS485 bus
· communication speed up to 115200 bauds
· galvanic isolation
· half-duplex communication system
· cooperation with the PowerSecurity web application
· optical indication
· warranty: 3 years from production date
Power supply
3,3 V power through SERIAL outlet
Power consumption
0,15 W
RS485 transmission’s speed
Max. 115200 bauds, with parity check
Galvanic isolation between the
RS485 and TTL interface:
1 kV(DC), 700 V(AC)
Optical indication
PWR – supply voltage indication (red LED)
TX – data transmission (yellow LED)
RX – receiving data (green LED)
Operating conditions
humidity -10
o
C ÷ 40
o
C
relative humidity 20%...90%
Dimensions (LxWxH)
63 x 50 x 20 [mm]
Net / gross weight
0,03kg / 0,09kg
Storage temperature
-20ºC...+60ºC
Other
Permission of Scientific and Research Centre for Fire Protection -
National Research Institute for use with power supplies of
EN54C-LCD series