Binghamton, NY Nov 10, 2009 #seven I am not common with meter operation, but I might suspect that it has to mail the switching voltages (13v for odd and 18v for even). And, if you'll want to see the opposite sats it must deliver the 22khz tone. Is this a https://drive.google.com/drive/folders/1GERuSW89En-RDkp6lxlA-is_YjVmDHgQ?usp=sharing