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communication device (computer, modem, fax, answering machine, etc.) through this unit using the LINE 2/DATA jack (�Data Port).
- If the LINE 2/DATA indicator lights, the communication device is in use. Use LINE 1 to make a call. Otherwise the communication device may not operate properly.
4. FOR SCHEMATIC DIAGRAM
1. SW 1: Hook switch. 2. SW 2: Ringer selector. 3. DC voltage measurements are taken with electronic voltmeter from negative voltage line. 4. (Add 40 mA to telephone line from the loop simulator.) 5. Off-hook condition 6. No Mack: Handset Mode 7. This schematic diagram may be modified at any time with the
