JMS-F SunSpec Certified Rapid Shutdown Device Installation

This video demonstrates the installation of the JMS-F line of SMA-compatible SunSpec certified rapid shutdown receiver.

[Jaye-ki]

I just have to say...this guy right here is a true professional at presentations. Gets right to the point and well spoken. Every other video I watch is drawn out and gives way too much analytical information.

[TN-bsfv]

Happy that you still answer questions. an SMA installer here. Please help.
1/ My string of 6 solar panels measured 5V, instead of 6V (JMS 1V * 6 panels), were all the 6 JMS working properly or was one failing? I can't easily access each JMS.
2/ My sunpower panel Voc is 85.6V, the JMS max open voltage spec is 60V, is this ok in the long run? And will the entire 72.9V Vmpp be flowing through in normal working mode, i.e. JMS not blocking?
3/ Does the Tigo TS4-A-2F rapid shutdown work with the SMA SB6.0-1SP-US-41 _without_ an RSS transmitter? i.e. the RSS is built into the inverter, so I just connect the Tigo directly to the inverter and set it to TS4 rapid shutdown?
Thank you so very much!

[ridemfast]

To be clear, and minimum of 6 JMS-F are required per string? Is their a work around if the string is only 4 or 5 panels?

[jjyst]

What shutdown initiator switch do you recommend to pair with this? Does it plug directly I to the sunny boy us-41 inverter?

[holdmode]

Ok: I have 7.7-41-us One Strings "A"; With Rapid Shutdown, what happens if I install another string "B" without Rapid Shutdown. Thanks...

[ericapelz]

Are these compatible with the Sunny Island inverters?

[emjeyem]

How do I disable the SMA internal RSS Transmitter? I am looking to install a Tigs RSS transmitter instead. I have: SMA SB7.7-1SP-US installed.

[benitpokharel]

IS THE OLDER MODEL OF SMA INVERTER • SB7.0-1SP-US-40 ALSO COMAPTIBLE WITH THESE RSD.

i SAW • SB7.0-1SP-US-41 IS COMPATIBLE. PLEASE LET US KNOW.