Panasonic KX-TD500 Installation Manual page 314

Troubleshooting
(30) Port link failure
Error Code
Possible cause of
the malfunction
Countermeasures
Note
314
1500 xyyzz: Port link failure
x = 1 to 3: Shelf number
yy = 01 to 14: Slot number
zz = port number
1.
The PBX synchronized with the port of VPS (DPT) or Doorphone
(TXXXXX: Physical port no.) in vain.
2.
The jack of VPS (DPT) or Doorphone is unplugged.
Check the cabling between "Port"
and "VPS(DPT) or Doorphone."
Faulty port
Reset the device (VPS (DPT) or
Doorphone) connected to the port.
Replace the related card.
None
No "Faulty" port
NG
End
Installation Manual
OK