6-8 Settings Date Code 20080110
SEL-387E Instruction Manual
Communications Ports
There are four communications ports and two optional Ethernet ports on the SEL-387E Relay.
Port 1 is an EIA-485 port on the rear panel. Ports 2 and 3, also on the rear panel, are EIA-232.
Port 4 is an EIA-232 port on the front panel. Ports 5 and 6 are the Ethernet ports on the rear
panel. These ports are set via the SET P command. To identify the port by which one is
presently communicating with the relay, issue the SHO P command, which will also list that
port’s settings.
Initial connection to the relay can be made with standard SEL protocol, at 2400 baud, 8 data bits,
no parity, 1 stop bit, and VT100 emulation, using any standard communications program such as
Windows
®
95 HyperTerminal
®
.
Complete information on the communications ports and necessary settings can be found in
Section 7: Communications.
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