CLIE (PEG-T series) USB cradle serial remodelling

Page taken from jtakao's page and translated from japanese by babel.altavista.com.

To beginning

The equipment which nowadays cannot use the USB must be used, it means that also it is sad, but the WindowscNt must be used with restriction of application and the like for business, the circumstance. But, the CLIE has not sold the serial cradle after the N series, cannot desire the sale of the serial cradle regarding the T series. Then, this you challenged to S series similar and remodelling.

It is different until now thing

It is different largely.

The S series and the N series had built in the serial interface of RS-23C2c level. Because of this relatively the USB cradle the serial (RS-23C2c) it could remodel to the cradle simply. But, it was modified to the serial interface of C-MOS level from the T series. Because of this you connect to the RS-23C2c terminal of the personal computer, it is necessary external to do the level conversion circuit.

First interface

Anyhow, the interface of the RS-23C2c and C-MOS level is necessary. Here recommendation (? However) it probably means that it is best to use the SP3222, in hand, being to have the interface baseplate which used the MAX232 we had decided to use this. Directly the electronic note of former times and the CASIO, being something which was made in order to connect the DK-2000 to the PC it does. As for the MAX232 the output terminal being not to be able to make high impedance, it is unqualified, as an one for interface of the CLIE, but with the notion that where the ま ぁ, use.

The MAX232 +5v needs power source. We had decided this to supply from the USB terminal of the PC. Not being able to use the USB terminal, although you say, you prepare serial interface, the sarcasm that you use the USB terminal.

Level conversion baseplate. As for the cable where the right side is thick the USB cable.

Remodelling the cradle

In order next, to connect resistance in order to change especially and the serial connection which from the terminal of the cradle pull out the serial signal outside, the cradle is remodelled.

But, as for the T series terminal pitch of the connector to become small different from the S series, furthermore the baseplate inside the cradle has become small. Because it is difficult, to pull out the signal conductor that way from here, you pulled out the signal conductor first with the superfine polyurethane line, you tried to produce the signal to outside the cradle by way of the relay baseplate. Also resistance for changing mounted in this relay baseplate.

Using the polyurethane line from the baseplate, you pull out the signal conductor.
It locks the relay baseplate in the cradle, from there with the flat cable pulls out to outside the cradle.

The signal which you pulled out tried to connect to the level conversion baseplate by way of the relay connector. When similar to remodelling with the S500C, this relay connector is connected, unless you connect to the serial, have tried to change to the USB. It reaches the point where you can connect with the serial without impairing the function of the USB cradle altogether with this.

Relay connector part. When you connect, the mechanism which changes to the serial. If you remove, the connector part can also house inside the cradle.

With being the case that it is said, the HotSync with the serial was possible safely. When with we would like to say, being, it does, but...

The HotSync button is effective

Connecting the remodelling cradle to the level conversion baseplate, placing the CLIE and... pushing the HotSync button there is no reaction. When the relay connector is removed, all right. When it makes the serial, does the HotSync button probably become invalid? By the way, when the HotSync it does from HotSync application, it was possible securely. With being the case that it is said, being to be the OK it does, the interface part but...

To tell the truth, because value of resistance of the interface change part was random, was. In case of the serial cradle the control terminal it is necessary to connect to the GND at 22k ohm. Because inside the cradle it is connected to the GND with the 220k, being to be supposed connect the resistance of para 24k rank with this, it does, but it meaning that the fact that it is in hand is the 33k you used this. As this is useless, when modem is connected somehow, it seems that is recognized. When so, this and the 220k which to hand is is connected furthermore para, it reached the point where it can do the HotSync safely. Because the value of resistance which should connect moved being to be within error 1%, however it is random even with this, the ま, with this calling and.

Notice

It is well known thing, but when remodelling and the like it executes, they are all Your Own Risk. Every damage due to referring above-mentioned contents I do not owe the responsibility. In addition inquiring at the manufacturer in regard to these contents modesty.

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By jtakao