IBM 8265 Nways ATM Switch, User Manual

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Diagnosing Problems from the CPSW System Status LCD
The System Status LCD on the CPSW module can be used to troubleshoot a problem that occurs during
initialization of the module.
Each time the CPSW module is initialized (at power on or after a reset), the following sequence should be
displayed on the LCD:
1. INIT - the initialization process is started.
2. SET1 , RFW1 , RBW1 , BRST - testing of the first bank of DRAM memory is in progess. These are only
displayed if diagnostics are enabled.
3. CLR1 - the first bank of DRAM is being cleared.
4. SET2 , RFW2 , RBW2 , BRST - testing of the second bank of DRAM memory is in progess. These are only
displayed if diagnostics are enabled.
5. CLR2 - the second bank of DRAM is being cleared. This is only displayed if two banks of DRAM are
installed.
6.
LOAD
- the operational code is being copied from the PCMCIA card into the DRAM.
7. ACTV or STBY - the CPSW module has become active (ACTV) or gone into standy (STBY) mode.
If the LCD does not show either ACTV or STBY after the initialization routine above, then an error has
occured:
Ÿ If the error was critical and halted the intialization process, ---
>
is displayed on the LCD. Press the
Display Control button below the ---
>
to view an explanation of the error.
Ÿ If the error was not critical, the CPSW is placed into Maintenance mode. An error code and
explanation of the error will be displayed on the LCD automatically.
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IBM 8265: User's Guide