Panasonic KXTA30820 Installation Manual - Page 41
Polarity Sensitive Telephone Connection, Extension T, R of jack 01
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2.3.8 Polarity Sensitive Telephone Connection If the telephone is polarity sensitive, follow the procedure below: 1. Complete all the required extension wiring. Outside (CO) Line Reverse here Extension 1 2 3 4 56 789 0 2. Confirm that dialing can be done from all the extensions using a touchtone telephone. If dialing fails, the polarity between the extension and the system must be reversed. 3. Reverse as shown. 4. Unplug the system. 5. Connect all outside (CO) lines. 6. Confirm that dialing can be done on the following extension using a touchtone telephone. Extension (T, R) of jack 01: Outside (CO) line 1 If dialing fails, the polarity between the system and the outside (CO) line must be reversed. Outside (CO) Line Reverse here Extension 1 2 3 4 56 789 0 7. Reverse as shown. 8. Every time an extension telephone is replaced, repeat the procedure above. Installation 2-17
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