A Handheld Scanner Oddity

UPDATE! Added a RS232 Port. Also added temporary input power pins for +12 volts DC. (not pictured).

The Motorola/Symbol MC9090 is a handheld computer used for inventory and a variety of other tasks that require a rugged scanner. It is now; in 2019 obsolete, mostly...

Parts and accessories can be expensive, depending where you live. In my case I did not want to wait weeks for the adapter that is used to allow communications and reprogramming to a PC.

The handheld scanner has internal contacts that mate with the battery, in turn the cradle and other adapters mate with the outer end of the battery to enable communication to the device. Many communication issues have been due to dirty contacts with this device...

In the official ''Integrator Guide'' for this device is a pin-out of the 17 pin D-sub type contacts of the battery; to include USB, RS232C, power, etc...

This is what I used to determine the correct connection to the PC via USB. I am also going to add a 15 pin 3 row D-sub connector and a power jack to charge this ''one-off'' diagnostic battery.

I have not included a schematic yet or a step by step guide as this is quite simple, at this stage. It is very much still a work in progress and I will keep this page updated as I add more modifications to this.

Please let me know if this helps, or if you would like more information, perhaps I can help...