The following table describes the meanings of each LED on the SNE. The normal states are in bold. A flicker has a fast blink rate (faster than one second) whereas a flash has a much slower blink rate (one second or more).
|
LED Name |
Color |
State |
Description |
|---|---|---|---|
|
HEARTBEAT |
Multicolor: blue or purple |
Flashing blue and purple |
1 blink per second = Normal operating status (all monitored processes have started and the device is fully operational) |
|
On, blue |
On solid, no blink = SNE is supplied with power but not operational |
||
|
Medium flicker, purple and blue |
2 blinks per second = SNE is starting up |
||
|
Fast flicker, purple and blue |
5 blinks per second = SNE is shutting down | ||
|
Off |
No power applied |
||
|
FAULT |
Red |
Off |
No faults; normal operation |
|
On |
On steady = Diagnostics are running or fault conditions are detected (for example, excessive memory or flash usage, or high CPU temperature). |
||
|
ETH ACTIVITY |
Green |
Flickering |
1 blink per second = Data is transferring over the Ethernet connection. Ethernet traffic is general traffic (may not be for the network engine). |
|
Off |
No communication |
||
|
ETH LINK SPEED |
Blue or yellow |
On |
On steady, blue = Network is connected at 1000 Mbps On steady, yellow = Network is connected at 100 Mbps |
|
Off |
No network connection or if ETH ACTIVITY light is flickering, network is connected at 10 Mbps. |
||
|
SITE DIRECTOR |
Green |
On |
On steady = Network engine is a site director |
|
Off |
Network engine is a child device |
||
|
BACNET/IP |
Green |
Flashing |
1 blink per second = The SNE is transmitting BACnet messages over
BACnet/IP to other devices, including other engines.
Note: If you select the setting SC Only,
the light flashes but the messages use the BACnet/SC datalink, not BACnet/IP.
|
|
Off |
No communication with other BACnet/IP devices |
||
|
USB-1 |
Green or Red |
On |
Solid red = An unsupported device is connected to USB-1 Note: Only
approved USB adapters that have been tested and qualified function with the SNE.
Non-qualified adapters do not function with the SNE. Refer to SNE/SNC Product Bulletin
(LIT-12013296) for more information.
|
|
Flashing Green |
1 blink per second = A supported device is connected to the SNE over USB-1 port. |
||
|
Off |
No device is connected or the USB port is disabled. |
||
|
USB-2 |
Green or Red |
On |
Solid red = An unsupported device is connected to USB-2 Note: Only
approved USB adapters that have been tested and qualified function with the SNE.
Non-qualified adapters do not function with the SNE. Refer to SNE/SNC Product Bulletin
(LIT-12013296) for more information.
|
|
Flashing Green |
1 blink per second = A supported device is connected to the SNE over USB-2 port. |
||
|
Off |
No device is connected or the USB port is disabled. |
||
|
FC BUS-1 |
Green |
Flashing |
1 blink per second = data transmission with normal communication over FC BUS-1 |
|
On |
Network engines are defined on FC BUS-1, but none are communicating. Only the SNE is transmitting. |
||
|
Off |
No data transmission |
||
|
FC BUS-2 |
Green |
Flashing |
1 blink per second = data transmission with normal communication over FC BUS-2 |
|
On |
Network engines are defined on FC BUS-2, but none are communicating. Only the SNE is transmitting. |
||
|
Off |
No data transmission |
||
|
FC EOL-1 |
Yellow |
On if connected |
On Steady = end-of-line termination is set to on for FC BUS-1 |
|
Off if not connected |
Off Steady = end-of-line termination is set to off for FC BUS-1 |
||
|
FC EOL-2 |
Yellow |
On if connected |
On Steady = end-of-line termination is set to on for FC BUS-2 |
|
Off if not connected |
Off Steady = end-of-line termination is set to off for FC BUS-2 |