TROUBLESHOOTING
HubSTACK
SEHI-24
RESET
|
| RCV |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| LNK |
|
|
|
|
|
|
|
|
|
|
| E | 24X |
|
| 24 23 22 21 20 19 18 17 16 15 14 13 | 2 | ||||||||||||
| PWR |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| CPU | RCV |
|
|
|
|
|
|
|
|
|
|
|
|
|
COM | CLN | LNK |
|
|
|
|
|
|
|
|
|
|
| E |
|
| 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 1 | 12X | |
|
| ||||||||||||||
LED NAME | LED COLOR | DEFINITION |
|
|
|
PWR | Off | No Power |
(Power) | Green (Solid) | Power |
|
|
|
CPU | Off | CPU in BOOT Process |
(Central Processing Unit) | Green (Flashing) | CPU Initializing |
| Green (Blinking) | CPU Functioning |
| Red (Solid) | CPU Not Functioning |
|
|
|
CLN | Red | Collision |
(Collision) |
|
|
|
|
|
RCV | Yellow (Flashing) | SEHI is Receiving Data |
(Receive) | Off | No Activity |
|
|
|
LNK | Green | Link Established |
(Link) | Off | No Link |
Note: “Flashing” indicates an irregular LED pulse. “Blinking” indicates a steady LED pulse.
Figure 5-1. LANVIEW LEDs
PWR
When this green LED is on it indicates that the SEHI is receiving power. If this LED is not on, it indicates a loss of input power. Check the input power source (circuit breaker, fuse, etc.). If the proper source power is present, the problem could be with the SEHI.
CPU
This LED alternates from red to green to during power up. After the boot is complete, the LED blinks green. A blinking green LED indicates normal operation. A red LED indicates a faulty processor.
Page
