The JA-60U modem is used for the remote connection of a personal computer with Comlink software to a JA-60KX or JA-65 control panel using a public telephone line. The JA-60U modem is used for the remote connection of a personal computer with Comlink software to a JA-60KX control panel using a public telephone line. It enables a computer to remotely control a JA-60KX in the same way as when it connected directly to the JA-60KX PC's output