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6.10. EXT. TEL
EXT. TEL JACK is provided for the external TEL connection.
Connect the telephone to the EXT. TEL JACK. Because the unit (FT21) has the priority, EXT. TEL is disconnected when the unit
is OFF-HOOK.
1. EXT. TEL DC LOOP
(Signal Path)
b → POS1 → LF1 → RLY1 (3) → RLY1 (2) → L5 → EXT.TEL → L6 → RLY1 (7) → RLY1 (6) → LF1 → F1 → a
2. REMOTE RECEIVING
This is the parallel connection DTMF signal for the TEL or EXT. TEL mode between T and R. When the other party is a FAX,
the unit changes to FAX receiving.
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KX-FT21RS