Port Selector
As a port selector, the 4PK-415 allows
one Master RS-232 asynchronous channel to be selectively
switched to any of up to 4 ports. The 4PK-415 can be used
to provide access from one modem or terminal to multiple
systems. A typical use for the Port Selector is to access
out-of-band management ports on multiple devices. By using
simple escape strings or easy to use menu commands, the operator can select which port to access. Ports can also
access the Master by raising a control lead (DTR or RTS).
While accessing a port, the 4PK-415 is passive, allowing
all data to pass until it receives a user programmable
command.