Mods that are in plan for the next (pre-production) AMBOARD prototype:

 

1) Transient Suppressor: add (motorola 1N5908)

 

2) Fuse: change . Now is present a standard 20A fuse, next will have 1 (or 2, see below)

picofuse II clipped in spring sockets

 

3) ESD strip: add

 

4) Stiffner: add (to be screwed just near the VME connectors)

 

5) VME P3 connector: change. Now is present a 3 rows 96 pin euroconn, next will

be replaced by a 5 rows VME64 connector, equal to P1 and P2

 

6) Thereis still a question about vcc distribution. The board sinks 12 A if full of

AMchips. There're raccomandations not to carry more than 10A in a single vcc layer.

So we wonder if we should add another vcc PCB layer or if only one vcc layer

could be enough. In the case of two vcc layers, two 10A picofuse will be onboard.