LED's on the DCU: You must see a PWR LED and a DIAG LED. If you see no PWR LED, this is signs of no power to the rack, or the rack power supply is bad. If you see no DIAG LED, this means the connection between the DCU and CPU is not good, the DCU, CPU, or base could be bad. If you see all of the LED’s on, this could mean that the DCU has failed diagnostics, or the DCU, Base or CPU is bad.
When connecting to the CPU, Directsoft will start searching for the link, you can watch for the DATA LED on the DCU to flash, if you see it flash, this means Directsoft and your PC are trying to communicate with the DCU. If you never see a DATA LED flash and Directsoft scrolls through all of its settings searching for a link, this means your PC is unable to talk with the DCU. (PC comm. port, cables, Unicon etc.)
If you still cannot communicate, refer to the troubleshooting section in the back of the D3-DCU-M manual. This manual can be downloaded from our website.
If further assistance is needed, please contact technical support
from our website or by calling 770-844-4200 Monday - Friday 9am
- 6pm EST.