User Instructions

www.pulsar.pl INTRE

PSU features:

 Operation in the ETHERNET network via the RJ45 connector

 Permission of the Scientific and Research Centre for Fire Protection - National Research Institute for use

with power supplies of the EN54 series in fire alarm systems

 compliant with the IEEE 802.3 standard

 transmission speed 10/100Mbps

 full duplex or half-duplex mode (auto-negotiation)

 assigning a static or dynamic IP address (DHCP server)

 galvanic isolation between the Ethernet interface and the RS485 bus

 configured with the PowerConfig program

 10 ÷ 30 V DC power supply

 Cooperation with PowerSecurity software

 optical indication

 hermetic enclosure IP65

 warranty - 5 years from the production date

1. General description.

The RS485-ETHERNET network interface is a device used to convert signals between the RS485 bus and

the Ethernet network and is designed to operate with power supplies of the PSBEN or EN54 series in the

LAN/WAN network. For proper operation, the unit requires an external power supply in the range of 10÷30 V DC

e.g. drawn from a PSU of the PSBEN or EN54 series. The physical connection of the interface takes place under

galvanic isolation. The unit is mounted in a hermetic enclosure protecting against adverse environmental

conditions.

Fig.1. Schematic diagram of Ethernet network communication.

The topology of the network is based on an Ethernet switch (e.g. switch, router) connected to another PSU

segments (connected in the RS485 bus) via the RS485-Ethernet interface. Each interface has a static IP address.

The communication between the PC and the final PSU requires the IP address of the interface, the address of the

PSU in the RS485 bus and the number of the port responsible for the communication.