Premier 88 Bell On Confirm

[enasecurity]

Breff, the panel has 2 NVMs fitted and is running v3.3

[PSE]

All Premier 88 PCB’s prior to issue 13 were fitted with two 24LC128 in the sockets labelled U9 and U10.

From issue 13 onwards, they were fitted with a single 24LC256 in the socket labelled U10. If the PCB is

prior to issue 13 or has two 24LC128 fitted, they must be removed and a single 24LC256 fitted to the

socket labelled U10.

[breff]

I seem to remember that there is a year date on the pcb, the year date determines what software can be put in. I know that v8 needed more memory to cope with extra functions/ more log events

There you go, spot on PSE

[PSE]

I've got the following firmware available, V8.02,  V8.13, V8.15,  V9.02, 

[enasecurity]

Thanks Breff and PSE. I will check which NVMs are fitted tonight, the date code on the PCB is 10/09/02

[enasecurity]

The NVMs in U9 and 10 are 128s. Shall I change to a single 256 or can I still update with the 128s?

[PSE]

Change to a 256 or you will have a door stop

[enasecurity]

Would the 24LC256 need programming before being fitted onto the PCB?

[PSE]

No

[enasecurity]

What software version would be best once I've changed the chips to a single 256?