As many as 12 individual units can be connected together to monitor up to 96 phone lines. Each unit should be configured to report data with appropriate lines numbers. The first field in the data stream indicates the phone line for the subsequent Caller ID data transmitted. DIP switches 1-3 determine the phone line number that each unit reports. Refer to the table below to set each unit.

Use the supplied serial cable to connect unit #1 with unit #2, unit #2 with unit #3, etc. The cable attaches to the unit #1 port marked "To Next Unit" to the unit #2 port marked "To Computer." Unit #2 connects with unit #3 in the same manor.