• Stores up to 3000 telephone numbers and names.
• Memory sizes available: 25, 75, 125, 250, 500, 1000, 2000, 3000. Specify requirement when ordering.
• Transaction buffer stores last 8000 events.
• Stores up to 8000 access card codes - dependent on system memory.
• 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 (requires AP memory upgrade).
• Elevator control (note 1) for up to 4 elevators, each serving 64 floors.
• Expandable (note 2) to control up to 16 entry points.
  Full-duplex communication.
• 4-digit entry codes, one for each telephone number.
• 3 form "C" dry contact relays.
• Single-line directory display uses super-twist LCD with 1/2-inch characters.
• EEPROM memory.
• Requires touch-tone, loop-start central office phone line.
• Two 16 VAC, 20 VA power transformers supplied.
• FCC (US): DUF6VT-12874-OT-T DOC (CAN): 1736 4528 A Compliant with UL 294. ETL listed.

Dimensions:

• Surface Mount: 13"H x 11.25"W x 4.75"D
• Flush Mount: 13.5"H x 12"W x 2.5"D
• Wall Mount: 15"H x 13.25"W x 3.5"D

The 1835 is available in two types of memory. The STANDARD memory is ideal for telephone entry system and access control applications, and will support expandability and elevator control. The ANTI-PASS BACK (AP) memory upgrade provides TRUE anti-pass back capability to the system.

Note 1: Requires Elevator Control Board.
Note 2: Requires Tracker Expansion Board(s).

OPTIONS AVAILABLE WITH THIS MODEL
Tracker expansion boards to control up to 16 entry points (one required per entry point). Tracker expansion boards record door ajar and forced entry data, and also provide gate operator data to the entry system.

Elevator control module. Each module controls one elevator shaft and 16 floors. You can add elevator control boards to control up to 4 elevator shafts with each elevator serving up to 64 floors.