Hello,
I am not able to establish a connection (AT commands included) between my fastrack modem and computer thru its serial port.
Here is a behavior that may give some insights for troubleshooting ideas:
Any creative ideas?
Thanks.
When you power the unit up (with SIM inserted & antenna connected), the red LED should come on steady;
Then, after a few seconds, it should start blinking.
Does this happen if you just power-up the unit and don’t connect it to the PC?
How, exactly, are you connecting to the PC?
Hi,
I got same problem. I plug the device into the power and wait for a while but the led still continuously be red (not blinking). Then i plug it to my computer and the led turn off right away.
Pls help.
Tks.
If I just power-up the unit and don’t connect it to the PC, the red LED comes on steady. Then it blinks every about 5 seconds.
When I connect it to my PC (through its serial port), the red LED turns off right away, and never comes back on.
It looks like “naked kid” has got a similar problem.
Any idea?
Hello, here’s one:
The first time I experienced that problem was due to a wrong cable.
I was experiencing the same problem today with a proper cable.
The problem vanished when I disconnected the ring indicator wire (pin 13 of the DB15 connector).
I also suspect that Windows hyperterminal has something to do with it, but have no definitive proof yet.
Sorry, I made another wiring mistake, I was using pin 15 as 13. It comes clear that a wrong cable makes the modem go crazy.
Remember that the 15-pin connector includes a BOOT pin and a RESET pin - if you wire them incorrectly, you most certainly will make the modem go crazy…!! 
Thanks. I checked my 15-pin to 9-pin adaptor I had bought in a store and the wiring is not the one required for the modem.
Out of curiosity, where did you buy your adaptor. I have a hard time to find one on the web. Any help will be much appreciated!!
Did it claim to be an adaptor for a Wavecom modem?
If it didn’t say that, there was absolutely no reason whatsoever to assume that it would work! 
It was included in the Kit with the modem.
And the pinout is provided in the manual for the modem.
Anywhere selling the modems should have the cables, surely?
Thanks! With the proper cable, the modem and the computer can now talk to each other. The AT command works; however, I am not able to initiate a call or send an SMS.
Here are some experienced behaviors:
A) AT+CSQ -> Answer: +CSQ: 15,0
B) The red LED is consistently on (no flashing)
C) All of the AT+COPS commands return “ERROR”
D) After AT+CPIN=xxxx, AT+CPIN? returns +CPIN: READY. After a few seconds, I get a +WIND: 3 and a +WIND: 1. Afterwards, AT+CPIN? returns +CPIN: SIM PIN… like if the PIN had to be sent again.
My configuration:
Wavecom Fastrack M1213A (900 / 1900 MHz)
Cingular SIM Card
Location: United States
Any thoughts?