Soldering DB9 Connectors

Learn how to solder a DB9 connector with InfoComm University instructor Tom Kehr, CTS-D CTS-I.

[@clivekennett]

A good instructional video. I wanted to see your soldering technique as I am trying to solder a 5 pin din. I would have forgotten to heat shrink the screening wire so many thanks to you.

[@isinc2003]

Pretty good tutorial.. I've only "fixed" broken xlr cables and resoddered them. Its probably important to note which wire goes on which connection.. and to make sure you do that on both ends!

[@Steve33AD]

Thanks for this- I am now much better informed thanks to you :)

[@luckyirvin]

good lesson, Sir. your tip care and heat transfer tinning are outstanding examples i love to twist the crap outta the conductor strands after stripping for the good insulation gap then i tin those red, blk, and gnd conductors and set them in empty cups, confirm insulation gap, add flux then heat and solder till done!

[@beaveronabike]

Same. I tin the wires, trim the black and red back maybe 1 mm as the drain wire is offset a bit. A bit of practice and just the right amount of solder holds the wires somewhat firmly in the cups until one can get soldered. Black (or whatever's in the middle) gets soldered first and that holds the rest together for the final 2. Then they all get a dab of solder and a spot of heat - and they're good to go. Harder to burn your fingers this way as the wires start in the cups. Never had any luck filling cups in DB9s...they're just too tight.

[@rehabilitator]

This hit the ASMR button

[@mastervule1844]

Great video! Thank you kindly :)

[@inertiatic88]

This was useful, thanks

[@SuperChaChaGuy]

Wow what a great video

[@rizzle236]

What pins do you solder for RS485/422?

[@DOMINATOR3211]

What type of wire do I need for a null modem cable?

[@ChronicKPOP]

ah so THOSE are the tin cups... perfect... I can easily fix my computer now thank you!

[@AVIXATV]

Glad we could help!

[@muminkadioglu5813]

Can we do the soldering using solder paste instead of wire?

[@braillynn4903]

Where can you buy parts like this?

[@manuchehrmukhidinov7111]

Is it cheaper to make it yourself? I mean what is the purpose?

[@jawadlakhdari558]

thank you very much, tristan is issou

[@stephenyoungblood3683]

Are you sure the numbers are not 1 on left looking from the back of the connector? Sure the brown stuff is not resin?

[@kwacz]

thank you for using a heatgun to shrink the heat shribk tubing and not using a lighter which i see way to often. You are doing it correctly.

[@JL-cq9cp]

what is the name of the wire being used for DB9 to DB25 connections?

[@terryjones2012]

wire

[@bcstexas]

Good Video, but you never explained the other parts and where they go or how they connect and what they are for. The two little flat pieces

[@GenePavlovsky]

When you are making a DB-9 cable that will connect to a panel mount mating connector, these flat (their ends are actually curved) work as washers under the heads of the captive screws that are used to secure the connector to it's mate. Looks like these are not used in this video.

[@necipbattal1126]

what is the order number of metalic case?

[@foxxmulder7524]

what size wire is used?

[@nareshshanmugam3397]

how to connect USB cable to 9 pin joy stick

[@slackmancr]

The soldier gun is about 20 W or more ?

[@chuckespinoza8767]

It will depend on the wire and solder that you are using. For this application, a 20 watt might take a bit more time to heat up the bond, but it will work. I would use a 35 watt on this type of wire with 63/37 solder.

[@augustomunoz6138]

what are the other pieces for? the remaining screws and metal pieces...

[@GenePavlovsky]

Captive screws and washers for connecting to the mating panel-mounted connector. I'm wondering, though, if there are some sort of matching nuts that could be installed on the same connector of the opposite gender (for making a secure cable-to-cable connection).

[@amaraalamari7385]

please a video or a diagram of cable db 9 to usb

[@sakshitalreja5303]

The soldier gun is about 20 w or more worst sholder ever good vedio

[@Turnerbiker73]

Pretinning the cups. Very bad show -1. When inserting the pretinned wire into the molten solder in the cup, there is absolutely no flux to assist in wetting. Back in the day with SnPb solder it could work but still very bad work. With leadfree this leads almost instantly to defects.

[@amla98]

Are these connector still commonly used?

[@renwar]

Most of the Laboratory devices are using this connector to send test results to PC.

[@jeffersonfreitas3332]

Fico com a impressão que seria melhor soldar primeiro o pino 5, depois o 3 e por fim o 2, afinal de contas o ferro não corre risco de encostar onde já foi soldado, concordam?

[@sanjayghosh273]

15 pin to usb

[@sanjayghosh273]

9 pin to usb

[@abrarhussain9496]

ok

[@a.i.5673]

to much solder ... to much heat that the plastic cover of the wire start to melt .

[@sanjayghosh273]

9 pin to 15 pin

[@DemonKingOFFICIAL]

Worst soldering ever