Other switches are at installer’s discretion. STATION ACCESS Set switches in black as indicated. Other switches are at installer’s discretion. 1 0 1 0 1 0 The contact closure contact set is provided to signal to external equipment the TAMB2.s operational state. The contact set is single pole, double throw, and changes state from what is screened below the terminals when the TAMB2 becomes active and returns when the unit becomes idle again. Contact Ratings: 0.6A @ 125V AC resistive 0.6A @ 110V DC