Sony PCS-1 System Integration Manual page 36

4. The power is not turned on during automatic incoming. (LAN)
2-6
SS-04
Does POWER
(amber) lamp
light?
YES
Is power
turned on when I/O
button of remote controller
is pressed?
YES
Is LAN
cable properly
connected to 100BASE-
TX/10BASE-T
terminal?
YES
Is other
companies' MCU or
GW used?
Communication terminal is defective.
YES
Verify whole system including
network administrator.
NO
Turn on power switch
on side panel.
NO
Proceed to "2. The power is not turned
on even if the I/O button of a remote
controller is pressed".
NO
Connect it properly.
NO
PCS-1/PCS-1P