IBM 6400-I15 Maintenance Manual - Page 213
Ethernet Interface LEDs and DIP Switches, Status Indicator LEDs and DIP Switches
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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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