User's Manual

Page 18 E2 Wireless I/O
antennas should have vertical polarisation, and the common (or “central” station should
have a collinear (non-directional) antenna.
Also, note that Yagi antennas normally have a drain hole on the folded element - the
drain hole should be located on the bottom of the installed antenna.
2.5 Connections
Bottom panel connections
Ethernet port
The E2 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 E2 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 E2 module provides an RS-232 serial port, which support operations at data rates
up to 115,200 baud. This port supports MODBUS as well as “serial device server”,
bringing modem functionality to the E-Series products.
The RS-232 port is provided by an RJ-45 connector wired as a DCE according to EIA-
562.