The ADM-2W704 is an intelligent device used for access control of two single-direction doors, or one bi-directional door. When connected to an Access System Manager (ASM) on the Delta LINKnet network, it provides remote, fully programmable, door access control and expanded I/O capabilities.


The ADM-2W704 is designed for access control of 2 single direction doors or 1 bi-directional door. Up to twelve door modules may be connected to an Access System Manager (ASM-24E) via LINKnet.

The ADM-2W704 is equipped with a built-in battery charging circuit to provide optional battery backup for the Controller, all of its peripheral equipment (i.e. Card Readers, Door strikes, and Maglocks) and the Access System Manager when the AC power fails.

All external inputs can be monitored for wiring status using EOL devices (Types 1, 2, 3, 4), which give trouble indication as well as normal and alarm conditions.


  • Controls two single-direction doors or one bi-directional door
  • 2 Weigand input ports per board
  • Can operate under a degraded mode of operation in the event of communication failures
  • Communicates on LINKnet
  • Configurable Wiegand card format up to 64 bits
  • All external inputs can be monitored to give status of the input wiring using EOL devices (Types 1, 2, 3, 4)
  • Easy-to-mount housing
  • Designed for easy field wiring
  • Equipped with battery charging circuit

Card Reader

2 Wiegand services (card reader, keypad, biometric device, etc.)


EOL supervised inputs (Types: 1, 2, 3, 4)

2 Door contacts

2 Request-to-exit switches

2 Auxiliary (i.e. tamper from Card Reader, motion detector – used in access/security,etc.)

1 Tamper switch


2 Doorstrike/maglocks, Form C Relay

5A @ 24VDC/AC, MOV protection. +12VDC @ 500mA available for each lock (lock power protected, internally wired and monitored)

4 LED driver, open-controller current sink @ 50mA, 24VDC maximum, current limited, (LED or Buzzer driver)

2 Auxiliary relays, Form C Relay

5A @ 24 VDC/AC, MOV protection

Output Voltages

2 Card reader +5VDC @ 50 mA each, (0.10A total) each individually fused with a resettable fuse

2 Card reader +12VDC @ 160mA each,

(0.32A total) each individually fused with a resettable fuse

1 Auxiliary +12VDC @ 50mA, fused with a resettable fuse

1 DC Power out +10 to +15VDC @ 0.25A fused with a resettable fuse

Device Type

LINKnet device only

Communications Ports

Delta LINKnet @ 76800 bps (maximum 12 door modules per ASM-24E)

Device Address

Set via Address DIP switches (standard device address range: 0 to 12 on LINKnet)


Removable screw-type terminal connectors

Wiring Class

Class 2


24 VAC @ 75VA

Note: transformer must not

be shared with any other products


32º to 131ºF (0º to 55ºC)

10 to 90% RH (non-condensing)


5 7/8 x 9.5 x 2.5 in.

(14.8 x 24.1 x 6.4 cm) with housing

1.49 lb. (680 g) with housing





UL294 Listed