Hi, can someone help please. I need to replace my sounder and purchased the Pyronix Deltabell E. I am ok with the wiring to the Securit700l panel. My question is on the jumper link settings in the sounder. The instructions suggeste that the battery is installed and needs to be enabled. There is a link for internal and external. As the sounder has a battery fitted, do I set the jumper link to internal? Thanks.