Trying to pair a samsung wireless subwoofer ps-wd450 to rca soundbar rts7010b

Question edited for a lot more clarity.
Question moved to a Samsung Sound Bar category.

It is wireless and uses a non proprietary system according to this, so No.

https://eu.community.samsung.com/t5/audio-video/ps-wh550-sub-woofer-compatibility/td-p/3627892

https://www.google.com/search?q=Samsung+ps-wd550+sub

..

Connect the power cords for the soundbar and the subwoofer to the back of each, and then plug both into a wall outlet. Use a small pointed object to press the ID SET button on the back of the subwoofer. Continue holding until STANDBY turns off and LINK (Blue LED) blinks quickly.

Sound drops out from the wireless subwoofer. The sound on your wireless subwoofer can drop out if there is interference or a physical obstruction between the soundbar and subwoofer. Make sure the subwoofer is within range of a good signal of your soundbar, and that the issue is not with the source audio.
https://www.samsung.com/us/support/troubleshooting/TSG01109876/

PAIRING THE JBL SB400 FOR WIRELESS OPERATION
After turning the soundbar and subwoofer on for the first time, you will need to "pair" the subwoofer and soundbar so they both operate at the same wireless frequency. To pair the units, press the Wireless Pairing switches on both units within 30 seconds of each other. The units will communicate with each other and operate at the same frequency.

http://resources.jvc.com/Resources/00/01/33/35.PDF

http://resources.jvc.com/Resources/00/01/33/34.PDF

Because your TV is not Bluetooth-enabled and you are trying to connect it to a Bluetooth-enabled soundbar via Bluetooth. There are other ways to connect your TV to the soundbar:

1. analog AUDIO OUT (L/R) of your TV to the AUX IN on the soundbar (use a 3.5 mm.-to-RCA audio cable).
2. Optical OUT on your TV to Optical IN on the soundbar.
3. HDMI port to HDMI port (this may not work if your TV is not ARC compliant you have to try).

You get better sound quality with option 2.or 3. (if this one works for your TV)

Here is the link to download the soundbar's User Manual for help with the connections:

http://downloadcenter.samsung.com/content/UM/201411/20141114104022428/HW-H450-ZA-1114_Bookmark.pdf

I presume you need link the Wireless Subwoofer to tour Soundbar.
Here are instructions:
How To Link The Wireless Subwoofer To Your Soundbar HW Models Samsung

I doubt there is a way to put an RCA jack into that sub. All the input comes from the wireless board. If you tried to put an RCA jack in there, the impedance and signal levels will not match what they need to be. Also, those soundbar system subs don't put out a lot of bass, I doubt it would even improve the sound of your current system if you could get it to work.

Press and hold the reset button on the back of the subwoofer until the light on the front starts blinking. Then with the soundbar turned on, press the stop button on the soundbar and the mute button on the remote at the same time. The display should say "REMATE". The sub light should stop blinking then and should be linked.