Instructions for RJ71 Phone Block Part Number 2370-010 IMPORTANT! PHONE LINE/NO PHONE LINE TIP (Positive) RING (Negative Set to left (Phone Line) if resident DOORKING 2370-010 polarity MUST be observed. has central office phone service. POWERED RJ71 TIP must be punched down...
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DOORKING 2370-010 Enable Call -Down for residents POWERED RJ71 without Central Office (C.O.) phone service. LINE IN SW 1 LINE IN SW 2 PHONE LINE INPUT 12VDC INPUTS LINE IN SW 3 12 VDC Regulated 1 amp LINE IN SW 4...