The DS1 delay/sequencer board offers a switching network that is ideal for (de)energizing an electrified locking device then, after an adjustable time, activating an automatic door operator. It is also suitable for other timing functions such as door sequencing in one or both directions, or anywhere a timing relay is required. For Telephone Entry system applications, the DS1 offers a direct connection to the entry panel, simplifying wiring and eliminating the need for and isolating relay.Features: Bi-Directional sequencing mode 3 Adjustable delays, up to 30 seconds maximum Easy potentiometer adjustments LEDs for visual relay confirmation Accepts wet or dry inputs 12 to 24V AC/DC One shot design for security or maintained output for smoke evac SPDT contacts rated at 3Amps @ 30VDC Input for connection to phone No hassle 3-Year WarrantySpecifications: Size - 3 ¼” x 2 ¼” x ¾” Mounting - Velcro or double-sided tape Enclosure - Protective paper sleeve Operating voltage - 12 / 24 Volts, AC / DC Current Draw - 18 mA standby, 40 mA max Response time - 0.3 seconds Inputs - 2 Wet + 2 Dry contacts: (3-30 V AC/DC, Optically isolated, non-polarity sensitive) Relay Output - 2 x Form C (SPDT) Relay contact rating - 3 amps @ 20 VDC Time Delays - DOR #1 1 to 30 seconds; DOO #2 1 to 30 seconds; DOR #2 1 to 30 seconds Electrical Life - 100,000 operations @ rated capacity; 500,000 operations @ ½ rated capacity
