User's Manual

VI-6
Remote Port
The remote port allows external control of the transmission system via the DB25 connector on
each enclosure. All functions on the remote port are simply hard-wired or paralleled to existing
wiring to provide a secondary method of control to the user, and are activated as follows:
pin 1: ground to reset microcontroller, float otherwise
pin 2: ground for 2 seconds to toggle carrier on/off, float otherwise
pin 3: common ground
pin 4: DC power supply sample