2: Description and Specifications
Micro125 Embedded Device Server Integration Guide
11
Status LEDs
The Micro125 carrier board has four status LEDs: serial port (Channel) 1 status, serial
port (Channel) 2 status, diagnostics, and network link status. See the following table for a
complete description of LED functions and pinout locations.
Figure 2-6 Micro125 Status LEDs
Table 2-2 Micro125 Status LEDs
LED
Description
Location
LED Functions
1
SerialPort
(Channel) 1
Status
CON 4, Pin 4
Lights solid green to indicate Channel 1 is idle.
Blinks green to indicate Channel 1 is connected to
the network and active.
2
SerialPort
(Channel) 2
Status
CON 4, Pin 7
Lights solid yellow to indicate Channel 2 is idle.
Blinks yellow to indicate Channel 2 is connected to
the network and active.
3
Diagnostics
CON 4, Pin 3
Blinks or lights solid red in combination with the
green (Channel 1) LED to indicate diagnostics and
error detection.
Red solid, green (Channel 1) blinking:
1x: EPROM checksum error
2x: RAM error
3x: Network controller error
4x: EEPROM checksum error
5x: Duplicated IP address on the network*
6x: Software does not match hardware*
Red blinking, green (Channel 1) blinking:
4x: Faulty network connection*
5x: No DHCP response received*
4
Network Link
Status
CON 4, Pin 8
Lights solid green to indicate network port is
connected to the network.
*non-fatal error
