I am looking for some advice to move in the right direction in connecting a base station I have to the Quad PCI Radio Card. According to Asterisk and the zaptel.conf the interface type is E&M and looking at the diagram in the installation pdf it appears to be a 2 wire operation type. I reconfigured an RJ-45 to connect between the base station and PCI Card, with corresponding PTT / COR / TX / RX / GND pins in the correct location on each side. However, I am unable to connect to the base station and am given the: Unable to create channel type Zap, error. My concern is that the connection is not a true E&M and the system cannot provide the -48v off hook and other levels required to recognize this channel. We have checked ztcfg -vv and it returns: Channel 01: E & M (Default) 1 Channels configured Modprobe goes off successfully, et all. Would anyone be able to offer any insight to move me in the correct direction? Thank you, JRH