IBM 6400-I15 Maintenance Manual - Page 213

Ethernet Interface LEDs and DIP Switches, Status Indicator LEDs and DIP Switches

Page 213 highlights

Ethernet Interface LEDs and DIP Switches The Ethernet Interface has three LEDs and three DIP switches, as shown below. These indicators and switches are adjacent to the data line connectors. LED patterns are defined in the table below the illustration. Status Indicator LEDs and DIP Switches Status Indicators STAT ERR NET Grn Red Grn DIP Switches OFF (Default is all switches OFF, as shown.) 1 23 STAT (System Status) ON ON ON OFF OFF FLASH FLASH FLASH ON ERR (System Error) OFF OFF ON ON OFF OFF ON FLASH FLASH LED Pattern Indications NET (Data to Network) ON OFF OFF ON ON FLASH FLASH OFF ON Mode RAM Test ROM Test EEPROM Test Network Interface Test PRN1 Test Run Mode Auto Reset Mode Firmware Panic Hardware Exception The Ethernet Interface Assembly has a self test and two internally controlled modes: Power-on Self Test: A seven stage power-on self test performs diagnostics on the Ethernet Interface processor, RAM, ROM, EEPROM, parallel port, and network interface. The STAT, ERR, and NET LEDs indicate which test is currently in progress. Run and Auto Reset Modes: Run Mode is the normal operating state of the Ethernet Interface. Auto Reset mode is entered when the watchdog timer is triggered and the Print Server resets itself. In either mode, the STAT LED flashes differently depending on whether the unit IP address is configured. Replacement Procedures and Illustrated Parts List 213

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213
Replacement Procedures and Illustrated Parts List
Ethernet Interface LEDs and DIP Switches
The Ethernet Interface has three LEDs and three DIP switches, as shown
below. These indicators and switches are adjacent to the data line
connectors. LED patterns are defined in the table below the illustration.
Status Indicator LEDs and DIP Switches
1
2
3
OFF
Grn
Red
Grn
STAT ERR
NET
Status
Indicators
DIP
Switches
(Default is all
switches OFF,
as shown.)
LED Pattern Indications
STAT
(System
Status)
ERR
(System
Error)
NET
(Data to
Network)
Mode
ON
OFF
ON
RAM Test
ON
OFF
OFF
ROM Test
ON
ON
OFF
EEPROM Test
OFF
ON
ON
Network Interface Test
OFF
OFF
ON
PRN1 Test
FLASH
OFF
FLASH
Run Mode
FLASH
ON
FLASH
Auto Reset Mode
FLASH
FLASH
OFF
Firmware Panic
ON
FLASH
ON
Hardware Exception
The Ethernet Interface Assembly has a self test and two internally controlled
modes:
Power-on Self Test:
A seven stage power-on self test performs diagnostics
on the Ethernet Interface processor, RAM, ROM, EEPROM, parallel port, and
network interface. The STAT, ERR, and NET LEDs indicate which test is
currently in progress.
Run and Auto Reset Modes:
Run Mode is the normal operating state of the
Ethernet Interface. Auto Reset mode is entered when the watchdog timer is
triggered and the Print Server resets itself. In either mode, the STAT LED
flashes differently depending on whether the unit IP address is configured.