Vajak,
Using the ICOM Data cable you can connect the ICOM 92AD to a computer
but the discussion here has been having an ICOM connector for the radio
capable to connect the data connection, microphone, and speaker at the same
time. ICOM did not wire all nine pins in their data cable!
So what I was trying to indicate there is a DB9 Standard for Computers
that standard is not the same as the pin out for the connector on the radio.
RS-232 standards(EIA-232) are defined by EIA/TIA (Electronic Industries
Alliance /Telecommunications Industry Association). RS-232 defines both the
physical and electrical characteristics of the interface. The ICOM pin out
does not meet the standard. I was not saying there are not RS232 signals
available
just that if you wire all the pins on the ICOM connector to a DB9
Serial Connector youre going to have problems and most likely damage the
radio. Is this an erroneous statement?
RS-232 DB9 Pin Signal ICOM Chassis 12 Pin
1 DCD In Data Carrier Detect 1 Microphone
2 RxD In Receive Data 2 +5v
3 TxD Out Transmit Data 3 Clone à CPU
4 DTR Out Data Terminal Ready 4 RS232C RX232
5 GND - Ground 5 RS232C TX232
6 DSR In Data Set Ready 6 Ground
7 RTS Out Request To Send 7 Speaker
8 CTS In Clear To Send 8 Ground
9 RI In Ring Indicator 9 OPTV à CPU
10 NC
11 NC
12 NC
I yield to those that understand this better than I do
but I am not going
to wire a connector pin for pin on my radio to the RS232 Standard DB9 and
plug it into a computer until someone else proves it wont damage a radio.
See the attached chassis pin out for the ICOM radio and the DB9 Standard!
73
Barry
KA0BBQ
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED]
On Behalf Of [EMAIL PROTECTED]
Sent: Monday, December 01, 2008 2:42 PM
To: [email protected]
Subject: Re: [DSTAR_DIGITAL] Digest Number 555
Dear Barry,
> Re: IC-92AD Connector
> Posted by: "Barry A. Wilson" [EMAIL PROTECTED] ka0bbq
> Mon Dec 1, 2008 9:50 am (PST)
> Jon,
> There are in fact only 9 connections internal to the IC-92AD 12 Pin
> connector. The other connections go nowhere. As I indicated in another
> post the connection on the DB-9 connector cables supplied by ICOM is not
> RS-232 compliant and perhaps the reason why they chose not to wire up more
> of the Data Cable pins to the connector.
I do not really understand it - the 92D has a full RS232-In/Out and can
directly be connected to the RS232 of an PC. The service manual shows it
also.
> Has anyone opened up the GPS microphone for the IC-92AD to see how many
> conduits are in the microphone cord? I'm curious if we could just
purchase
> replacement microphone cables with the waterproof connector already
molded
> to the cable. I assume it's has to carry several more conduits than the
> Data Cable since it has to carry the Speaker and Mic Data and voltage to
> power the GPS unit from the radio itself.
it looks like you do not look an the service manual, isn't so?
And have a look at the HM-75A, there are remotefunctions ...
And what is with the "HM 174" does it use perhaps the same cable like the
gps-version?
> Barry
> KA0BBQ
Vy73
Vajk / DD1GV
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