rletech.com WiNG-MGR User Guide 19
2 Getting Started
2.3.2 EIA-232 COM Connection
The WiNG-MGR can be connected directly to a PC through its EIA-232 port. This is useful
for IP configuration, firmware downloads, and troubleshooting. The EIA-232 connection is
only used as a temporary connection. Connect the straight through, 9-pin serial cable as shown
in Figure 2.5.
Figure 2.5
EIA-232 COM Connection
2.3.3 Modbus EIA-485 Connections
The WiNG-MGR can function as a Modbus Slave over an EIA-485, 2-wire hardware
connection, as shown in Figure 2.6.
When using the EIA-485 port for Modbus RTU communication, RLE Technologies
recommends an 18AWG shielded twisted pair stranded copper wire for the connection, using
no more than 2000 feet (609.6m) of wire at this specification. If longer runs are needed, please
contact RLE Technologies.
Figure 2.6
EIA-485 Connection