I would guess (only a guess) that each one of those pins is a separate relay coil, powered against the shell/ground. Using an ohmmeter measure from each of those pins to ground, they should be approx. the same resistance. Apply power from a variable supply between a pin a ground. Bring the supply up slowly and check the connection between the common and the outputs at each step. I think you'll find that at about 20 volts or so the connection will be made.
73, Mark W1EOF > -----Original Message----- > From: W5OMR/Geoff [mailto:[EMAIL PROTECTED] > Sent: Wednesday, May 10, 2006 9:37 AM > To: discussion of AM Radio > Subject: [AMRadio] remote coax switch > > > I've got a commercially made three position remote coax switch, that I'd > like to get more information on, if someone has it. > > Made by Amphenol > Model number 3BNI20R10A-7 (don't know if that I is a 1 or not) > Serial: 6419 > 28 Volts DC > > Has 5 connections on it > 3 BNC (outputs) > 1 Type N Female > 1 bluk-head with 3 pins. > > Does this mean that if you pulse 28v on one pin, it goes to the right, > and if you pulse the other 28v pin, it turns to the left, with the last > pin at ground potential? > > Pins are marked A B C > > other indentifiers are stamped on the unit... > > 300-81128 > IRM5895-717-2565-FX3X > > those are stamped on, so may be a local part number, wherever it > came from. > > Any help? Google wasn't. > > -- > 73 = Best Regards, > -Geoff/W5OMR > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > AMfone Website: http://www.amfone.net > AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.392 / Virus Database: 268.5.5/335 - Release Date: 5/9/06 > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.392 / Virus Database: 268.5.5/335 - Release Date: 5/9/06
