Pin Layout of the Connectors for the
There are two non-standard connectors in the back of the PC Plus.
The larger connector has 26 pins and is evidently RS-232C compatible.
I have verified that the PC Plus recognizes this connector as COM1:
Fujitsu Poqet PC Plus Handheld Computer
The smaller connector has 10 pins and is used as a bar code reader.
I'm guessing the smaller connector could be used as COM2: but
this remains to be tested.
It seems nobody sells the serial adaptor for the PC Plus.
So perhaps I need to just obtain the non-standard 26-pin connector
so I could make an adaptor myself.
By the way, this mythical serial adaptor for the PC Plus is
also the same adaptor used for the PoqetPad Plus also made
by Fujitsu. Nobody seems to have these for sale either.
Many thanks to Javed Ahmed of Fujitsu Technical Support for
the following pin assignment information! (I added the descriptions
for the RS-232C pin connections only.)
The serial connector had 26 pins.
1 GND System Logic Ground
2 TxD Transmit Data
3 RTS Request to Send
4 DTR Data Terminal Ready
6 RxD Received Data
7 CTS Clear to Send
8 DSR Data Set Ready
9 DCD Data Carrier Detect
25 VDD Power supply output voltage
The smaller 10 pin connector is actually a barcode reader.