NC-485X Network Converter
Application Note
Page 11 of 13
P/N: 01967-001 Rev. C
Cable Connection Status
Master Mode
Slave Mode
LAN Cable Connected
•
LED 1, 2, 4 Solid
•
LED 1 Blinking when
Doors is connected
•
LED 1, 4 Solid
•
LED 2 Blinking
LAN Cable Not
Connected
•
LED 1 Solid
•
LED 2 Solid
•
LED 4 Off
•
LED 1, 2, 4 Solid
a
a. If the Master LAN-520X LAN connection is the problem, then all LAN-520X slaves will
have LEDs 1, 2, and 4 solid. If a Slave LAN-520X LAN connection is the problem, then
only that LAN-520X will have LEDs 1, 2, and 4 solid.
NC-485X Cable
Connected
•
LED 1, 2, 4 Solid
•
LED 2 Blinking
•
LED 1, 4 Solid
•
LED 2 Blinking
NC-485X Cable Not
Connected
Problem
Possible Reason
Possible Solution
Unable to
communicate
LAN-520X
over Ethernet
using either
Ping or Telnet.
•
The IP address is not
reachable from the
Master LAN-520X to
the Slave LAN-520X.
•
The LAN-520X is not
properly linked to the
LAN. The Network
link LED (Green #4) is
not lit.
•
IP address, routing, or subnet mask may be
incorrect. Consult Network Administrator.
•
Check connection at Switch, Hub, or Patch
Panel.
•
Replace CAT5 Patch Cable.