User's Manual

E2 Wireless I/O Page 19
RS-485 port with Modbus Support.
The E2 module provides an RS-485 serial port, which support operations at data rates
up to 115,200 baud. This port Supports MODBUS functionality, as well as functionality
as “serial device server”, bringing modem functionality to the E-Series products
The RS-485 port is provided by two screw terminals. On-board termination of the RS-
485 circuit is built-in.
Side Access Configuration Panel
On the side of the module is a small access cover that hides a “Factory Boot” switch, a
USB Host port and a small bank of dipswitches that are used for Analog input
voltage/current selection, External Boot and Default configuration settings.
RJ-45 Signal
Name
Required Signal name
1
RI
Ring Indicator
2
DCD
Data Carrier Detect
3
DTR
Y Data Terminal Ready
4
GND
Y Signal Common
5
RXD
Y Receive Data (from Modem)
6
TXD
Y Transmit Data (to Modem)
7
CTS
Clear to Send
8
RTS
Request to Send