Skip to content
View in the app

A better way to browse. Learn more.

Thailand News and Discussion Forum | ASEANNOW

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Null Modem Cable

Featured Replies

does anyone know where I may find a null modem cable with female ends I have tried many places but have been unable to find due to them being outdated now really

sorry forgot to add I do not want a usb one as I have tried one of them and had no luck with it

Thank you

ebay sure bet....but I believe anti and Fortune T. have a good stock of this rather old cable....there is a shop in Fortune i think it's called Amos or something like that, selling electronic components and cables....try yr luck.

Why do you not make one yourself, it's not so difficult. Also if you not capable of using a soldering iron you can ask one of the shops in Panthip who are specialized in making customized cables (will not cost one bath more than a normal RS232 D9 serial cable.

If you want to explore the possibility to make one yourself take a look at this website... http://www.lammertbies.nl/comm/info/RS-232_null_modem.html

Can you solder? It'd probably be easier buying a couple of connectors and diy, if you know the pinout. A bit of UTP would do for the cable, or you can get stranded UTP if you need it to be a bit more flexible.

Knowing the pinout is critical - there are very many variations of null modem cable depending on the equipment. They all use rx, tx & gnd but that's where the similarities end - different equipments may require different combinations of dsr/dtr, rts/cts etc to be looped out and/or connected.

When it comes to RS232 D9 standards, it basically is at the end of the track, so if the latest form of RS232 D9 Null Modem not works you need to seriously specify what you want to connect. For anything modern enough like we still use today, like basic communication for firmware and communication the standard in the picture is fine....

db9_null_dumb.png

I notice you specify female ends.

Remember there are gender benders, that convert male to female.

post-7384-0-45316100-1340085882_thumb.jp

Or two in one.

post-7384-0-09946600-1340085951_thumb.jp

Create an account or sign in to comment

Recently Browsing 0

  • No registered users viewing this page.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.