Hardware reference guide

Intelligent/Special Purpose
35013379 11/2011 363
Status LED Crash Codes
The following table shows a table of Status LED crash codes.
Front Panel Connectors and Switches
The ESI has two serial ports which it uses to communicate with serial devices. The
following is the pinout connections for the ASCII module serial ports.
RS-232C Serial Ports
The following table shows the pin number and description for the RS-232C serial
ports.
Number of Blinks
(one per second)
Code (in hex) Error
Steady 0000 Requested kernal mode
4 6631 Bad micro controller interrupt
5 6503 RAM address test error
6 6402 RAM data test error
7 6300 PROM checksum error (EXEC not loaded)
6301 PROM checksum error
630A Flash-message checksum error
630B Executive watchdog timeout error
8 8000 Kernal other error
8001 Kernal PROM checksum error
8002 Flash program error
8003 Unexpected executive return
Pin Number Signal Name Description
1 DCD Carrier Detect
2RXDReceive Data