www.pulsar.pl
INTRE-C
3
Features:
permission of Scientific and Research Centre for Fire Protection - National Research Institute for use with
power supplies of EN54C-LCD series
up to 247 devices served on a RS485 bus
automatic detection of PSUs on the RS485 bus
dynamic addressing of PSUs
automatic email notifications of PSU malfunctions
connection to ETHERNET network via the RJ45 connector
compliance with IEEE 802.3 standard
10/100 Mb/s transmission speed
full-duplex or half-duplex operation (auto-negotiation)
galvanic isolation between ETHERNET interface and RS485
10÷30 V DC power
cooperation with the PowerSecurity web application
optical indication
IP65 hermetic enclosure
warranty: 3 years from production date
1. General description.
The RS485-ETHERNET interface is intended for cooperation with PSUs of the EN54C-LCD series.
The PowerSecurity software enables remote monitoring of parameters through a cyclical preview of the current
status of the power supply, reading the event log and diagrams of currents and voltages and performing remote
battery test.
Interface is a device used to convert signals between RS485 bus and Wi-Fi network. For proper operation,
unit requires an external power supply in range of 10÷30 V DC e.g. drawn from a PSU of EN54C series.
Unit is mounted in a hermetic enclosure protecting against adverse environmental conditions.
Fig.1. Schematic diagram of Ethernet network communication.
The network topology is based on an Ethernet switch (e.g. switch, router) to which subsequent segments of
power supplies are connected (connected in the RS485 bus) via the RS485-Ethernet interface. Each interface has
a static IP address. The communication between a PC and an end PSU is effected through entering of the IP
address of the interface, the address of the PSU in the RS485 bus, and the number of the port in which the
communication takes place. An interface may support a maximum of 247 PSUs on one RS485 bus.
