Configure the EIA-530 DTR Circuit
A balanced circuit has two currents that are equal in magnitude and opposite in phase. An unbalanced circuit has one current and a ground; if a pair of terminals is unbalanced, one side is connected to electrical ground and the other carries the signal. By default, the DTR circuit is balanced.
To configure the DTR circuit on an EIA-530 interface, include the
dtr-circuitstatement at the[edit interfaces ei-fpc/pic/portserial-options]hierarchy level:[edit interfaces ei-fpc/pic/portserial-options]dtr-circuit (balanced | unbalanced);