American Fibertek CX-6p-PoE - Manual (Page 14)

14
Serial RX/TX LED
On the right side of the rear panel of the unit are two LEDs. The lower of these
two LEDs indicates activity on the unit’s RD232 serial port. This LED will
illuminate green if there is data being transmitted out of the port, or green if there
is data being received at the port.
Real-time clock
The CX-6p-PoE’s real-time clock and calendar (RTC) uses a lithium battery to retain
time and date settings while the unit is not powered. It is strongly recommended that
you not attempt to replace this battery without technical assistance from AFI.