DoorKing 1837 – 90 Series Entry System

The 1837 90 Series stores up to 3000 phone numbers and 8000 device codes and can be expanded to control up to 48 wired access points with optional Tracker Expansion boards (up to 24 wirelessly). The 90 Series housing offers a streamlined look, has enhanced locking and weather sealing and provides easy internal installation of optional components such as a card reader, LCD heater and TCP/IP adapter for a direct internet connection. The 1837 is still available in the original 80 Series (surface and flush mount) housings, click the button below to view the 80 Series product page.

• True Full Duplex communication.
• Stores up to 3000 telephone numbers and names (names are limited to 15 characters max).
• Transaction buffer stores last 8000 events.
• Stores up to 8000 device (card) codes.
• 31 Security (permission) Levels, 29 programmable with 4 time zones each.
• 8 hold open time zones.
• Three anti-pass back configurations: passive, active and trap.
• Elevator control (note 1) for up to 8 elevators, each serving 64 floors.
• Expandable (note 2) to control up to 48 wired entry points (or 24 wirelessly).
• 4-digit entry codes, one for each telephone number.
• 3 form “C” dry contact relays.
• Eight-line directory display uses super-twist LCD with 1/2-inch characters.
• EEPROM memory chip.
• 16 VAC, 20 VA and 16 VAC, 50 VA power transformers supplied.
• FCC (US): DUF6VT-12874-OT-T
• DOC (CAN): 1736 4528 A
• Compliant with UL 294.   ETL listed.