atcomsystems.ca/forum Forums TDM Business Telephone Systems NEC Telephones & Systems IPK Firmware Upgrade Instructions

Hello, I am looking for the upgrade instructions for the CPUI. I have the chips, but I no longer have the info.

1. Verify the battery is on.
2. Power off the KSU and remove the CPU.
3. Install the IPK RX.XX EPROM ROM 1 in IC5 on the CPU.
4. Place DIP switches SW1-1 and SW1-2 ON and DIP SW3-1 ON.
5. Install the CPU.
6. Power on the KSU. LED 1 is winking or flashing.
7. After LED 1 goes off (Appx. 2 mins), power off the KSU and remove the CPU.
8. Remove the Elite IPK RX.XX EPROM ROM 1 from IC5 on the CPU.
9. Install the Elite RX.XX EPROM ROM 2 in IC5 on the CPU.
10. Leave SW 1-1 and SW 1-2 on, and place SW 3-1 off and SW 3-2 ON.
11. Install the CPU.
12. Power on the KSU. LED 1 is winking or flashing.
13. After LED 1 goes off (Appx. 2 mins.), power off the KSU and remove the CPU.
14. Place DIP SW's SW 1-1, SW 1-2, and SW 3-2 OFF.
15. Replace RX.XX ROM 2 with RX.XX ROM 1 in IC5 on the CPU.
16. Install the CPU, and power on the KSU.
17. After the system comes up, press FEATURE + 3 from any LCD phone and verify the new version.

Thank you so very much! I have had great difficulty finding this information.

Surprized you could get hold of the update Eproms.. :-)