ADLINK PXIS-2508 - Manual (Page 41)

Remote Management 31
4 Remote Management
The PXIS-2508 and PXIS-2558T chassis provide an advanced
remote monitoring and control functions. The chassis status,
including it internal temperature, fan speed, and DC voltages, are
exported via the standard RS-232 port located in the rear panel
allowing you to monitor the system on a remote computer. You
may also use a remote computer to turn the system on or off
through the monitoring port by sending software commands.
To remotely monitor and control the PXIS-2508/2558T, you need
to connect the remote monitoring port to a remote computer using
a standard RS-232 cable.