Ethernet
- PS/2 Troubleshooting
Failure
at System Boot
At system boot, the computer
attempts to download firmware to the LANC board. If the
download fails, the following message appears:
LAN startup failed,
hardware problems.
Check the following:
- Is the board configured ? (run
Config from the Scitex-IBM- Reference diskette)
- Check if LED #2 is ON (if not
run Configuration)
- Is the LANC board faulty ?
(run diagnostics to check)
- Is LED #l ON ? (replace the
board)
Failure
in Communication
If an error is discovered during
communication, the system displays the error number and
its meaning.
Check the following:
- Is the communication cable
connected to the appropriate connector ?
Check that the appropriate LED is ON (Ethernet or
Cheapernet).
- Is system configuration
correct ? (Subnet Name, Logical Name, etc.)
- Is the transceiver connected
properly (for Ethernet only) ?
- Run diag to check the LANC
board.
- Check LEDs #3 or #4, according
to the line connected, to verify that you are
connected to the link.
(See the following table:)
LANC
On-Board LEDs Table
| LED
|
Status |
Mnemonics |
Operation |
| LED 1 |
On |
DG2 |
Diagnostics |
| LED 2 |
On |
CEN |
Card enable |
| LED 3 |
On |
ETR |
Ethernet |
| LED 4 |
On |
CPR |
Cheapernet |
| LED 5 |
On |
CDT |
Collision detect |
| LED 6 |
On |
CRS |
Carrier sense |
| LED 7 |
On |
RXD |
Receive data |
| LED 8 |
On |
TXD |
Transmit data |
| LED 9 |
On |
DG1 |
Diagnostics |
I/O address range: EC00
Interrupt level: 10
Arbitration level: 13
Understanding
LANC Board LED Indications
NOTE:
During power on, all LEDs (except #3:Ethernet) are off.
LED #9 turns on immediately after
power on (during boot diagnostics), and turns off
immediately after its completion
| Situation |
LEDs |
Explanation |
| #1. Data
transmit |
6,7,8 |
Flicker during
transmission |
| #2. Data
receive |
6,7 |
Flicker when
there is any activity on the network, even when
your station is quiet |
| #3. Heavy
activity |
5 |
Flickers
occasionally. If flickering is frequent, the
network is overloaded and transmission is
severely impaired. This may appear with situation
#l or #2. |
| #4. Ethernet |
3 |
Lit when
connected to the Ethernet, or if there is a
faulty network connection |
| #5. Thin
Ethernet |
4 |
Lit when
connected to Thin Ethernet |
| #6.
Diagnostics |
9 |
Lit when
system checks the LANC board |
| #7.
Diagnostics |
1 |
Lit when LANC
board EPROMs are not loaded |
|
