DIY Terminated Power Supply

[JeffB418]

This tutorial will go over how to install a termination resistor in your hydros power supply connector so you do not need a dongle version. This is handy in cases where you have a data only cable between two hydros devices in a collective.

what you need:
- 24v hydros power supply
- 1/4watt 120 ohm leaded resistor
- electrical tape or shrink tubing
- soldering iron and skills

first remove the 2 screws a the collar. Then spin the housing from the connector head and slide back down the wire to expose the gx12-5 pins

cut your 120 ohm resistor as follows


then solder the resistor between connector pins 2/3. Pins are labeled on the face of the black connector for reference


Either wrap the exposed resistor with a small piece of electrical tape or heat shrink to prevent contact with metal connector housing



reinstall housing and screws



test resistance between connector pins 2/3 with an ohm meter. Then plug it in and measure 24vdc across pins 1/5. Then your good to go!

 

[Carlos]

They have lots of those resistors cheap on Amazon. Here is a link to one of them, but there are multiple!

https://www.amazon.com/gp/product/B07HDF7FYK

 

[John Neuzil]

This tutorial will go over how to install a termination resistor in your hydros power supply connector so you do not need a dongle version. This is handy in cases where you have a data only cable between two hydros devices in a collective.

what you need:
- 24v hydros power supply
- 1/4watt 120 ohm leaded resistor
- electrical tape or shrink tubing
- soldering iron and skills

first remove the 2 screws a the collar. Then spin the housing from the connector head and slide back down the wire to expose the gx12-5 pins

cut your 120 ohm resistor as follows
View attachment 1017

then solder the resistor between connector pins 2/3. Pins are labeled on the face of the black connector for reference

View attachment 1018
Either wrap the exposed resistor with a small piece of electrical tape or heat shrink to prevent contact with metal connector housing

View attachment 1020

reinstall housing and screws

View attachment 1019

test resistance between connector pins 2/3 with an ohm meter. Then plug it in and measure 24vdc across pins 1/5. Then your good to go!

Hi Jeff,
Thanks for posting stuff like this. But,,,,, just wanted to make sure I am understanding. So I can also do this to my power supply for a normal collective not involving a data cable. Say if I have a control 2 and a control XS in a collective I can install the resistor on the power supply going into the control 2 and won't need the terminator on the connected XS? I always question my electronic knowledge. Building things is easy for me but electronics throw me a bit.

Thanks.

John

 

[Carlos]

It is best if a collective has 2 terminators, with one at each end of the link. Still, for a small collective, 1 terminator would work, and yes, if the power supply has the terminator incorporated into it, then that is the 1 terminator you need.

 

[John Neuzil]

It is best if a collective has 2 terminators, with one at each end of the link. Still, for a small collective, 1 terminator would work, and yes, if the power supply has the terminator incorporated into it, then that is the 1 terminator you need.

Thanks Carlos

 

[CKinLA]

Thanks for posting the directions. This was very easy to do.