Connections; Bottom Panel Connections; Ethernet Port; Usb Device Port For Configuration - Elpro Technologies 915U-2 User Manual

915U-2 Wireless I/O

2.5 Connections

2.5.1 Bottom panel connections

B A - +
EXPANSION

Ethernet port

The 915U-2 modules provides a standard RJ-45 Ethernet port compliant to IEEE 802.3
10/100 BaseT. This port provides full access to the module, including configuration,
diagnostics, log file download and firmware upload, of both the local and remote units.
Additionally the Ethernet port can provide network connectivity for locally connected
third-party devices with Ethernet functionality.

USB Device Port for configuration

The 915U-2 module also provides a USB-device (USB-B) connector. This connector
provides configuration of the device and remote configuration access to other devices in
the radio network.
RS-232 port
The 915U-2 module provides an RS-232 serial port, which supports operation at data
rates up to 230,400 baud. This port supports MODBUS protocol.
The RS-232 port is provided by an RJ-45 connector wired as a DCE according to EIA-
562 Electrical Standard.
RJ-45 Signal
1 RI
2 DCD
3 DTR
4 GND
5 RXD
6 TXD
7 CTS
8 RTS
RS-485 port with Modbus Support.
The 915U-2 module provides an RS-485 serial port, which supports operations at data
rates up to 230,400 baud. Default baud rate is 9600 baud, No Parity, 8 data bits and 1
Page 25
100M
LINK
ETHERNET USB
Figure 9 – Bottom Panel Connections
Required
Data Carrier Detect
Y Data Terminal Ready
Y Signal Common
Y Receive Data (from 915U-2)
Y Transmit Data (to 915U-2)
Request to Send
BAT SUP SUP
GND
+ - +
RS232 SUPPLY
Signal name
Ring Indicator
Clear to Send
Page 25
Connector
User Manual