PCMCIA Ethernet and modem dongle pinout here it is

[Magdy Girgis]

In searching the groups, many ask the same question I was searching for an
answer to, but no answers at all . so here is my answer.

Having bought a cheap pcmcia ethernet card (without dongle) to experiment
with.

Because I am fed up with the stupid dongle, and my laptop has a "hidden"
pcmcia slot that could have modem/ethernet card.

Next to it is a group of small sockets which are wired to both RJ45 and RJ11
in the back.

The challenge was to identify which pins of the pcmcia to connect. (groups
search zilch).

So some testing and thinking.....................and later...on at
last....

For modems this was easy . I found that the Psion Global V34 and the PROJECT
56K have the same connector with 16 pins as follows in 2 rows as you look at
connector with card right way up

e means place empty i.e. no connector
p means connector present

ppppeeee
----------
ppppeePP

the bottom 2 connectors (capital PP) are the analogue wires so these go to
RJ11 pins 2&3 for the USA polarity not important.

For the U.K. (BT plug) should be wired to pins 2 and 5 (the outer 2 pins of
a 4 pin plug) .

Now the difficult one is the ethernet card.

Mine is a SOCKET AE credit card. but having seen the xircom and others they
seem to be the same (but this is at your own risk not mine if you decide to
try)

By the way this only applies to those cards with straight dongles to an
RJ45, not to those with pods and BNC connectors.

Now the connector is 15 pins (the card has 15 small sockets)

if holding the card again the right way up and number the sockets from RIGHT
to LEFT as below

CARD 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
RJ45 6 3 2 1
As you know there are only 2 twisted pairs in use, although the RJ45 is 8
pins.

the first pair is connected to the RJ45 plug to pins 1 and 2

pin 1 should go to pin 7 of the card and pin 2 should go to pin 8

the second pair is connected to the RJ45 plug to pins 3 and 6 (yes six not
4)

pin 3 should go to pin 9 of the card and pin 6 to pin 10 of the card

and that is it

I hope this will be of help to some of the poor souls who are kept being
told to go and buy a new dongle rather than make their own cable (dongles
are unreasonably expensive)

[H. Dziardziel]

On Fri, 10 May 2002 22:56:53 +0100, "Magdy Girgis"
<magdy....@rozel5.fsnet.co.uk> wrote:

>
snip
>
Thanks

[Magdy Girgis]

Just to add the pinouts for EtherLink III (3Com)

this card has a diffirent type connector , but still 15 pins the pinout is
also diffirent and is as follows, but as usual mess about at your own risk.

again counting from RIGHT to LEFT with the dongle end facing you and label
facing up

pin 1 of RJ45 goes to pin 4 of card
pin 2 of RJ45 goes to pin 3 of card
pin 3 of RJ45 goes to pin 2 of card
pin 6 of RJ45 goes to pin 1 of card

M.

"