voice communication, access control, cctv, cctv security system The NDRM Rack Mount System from Aiphone provides voice communication throughout a facility and integrates with access control/CCTV security systems. The NDRM is designed for communication between a central master console and remote intercom stations. It integrates with existing access control and video surveillance systems all from one central location. In addition to communication to remote locations, an external device can be activated, such as a CCTV camera when the associated sub station is selected, a door strike or maglock can be selectively controlled, or both functions can be included. The master station can accommodate up to 100 remote stations and has the flexibility to call up cameras and release doors or gates associated with remote station locations. It's also equipped to communicate with and control up to 20 locations. The add-on panel can accommodate up to 40 locations with selective control. Each panel occupies three rack spaces in a standard EIA 19 rack. All of the controls for the system are located on the front of the master panel for easy access. A jack is provided for the modular handset (or telephone headset) for more private communication.

In offices with security consoles, the intercom can be mounted in the rack console along with other security equipment. The supplier's NE-NVP/B substation is vandal-proof and weather-resistant, and has a standard call button and red emergency button. The NDRM Rack Mount Intercom System provides a convenient and reliable means to communicate and confirm access to secured areas from one central control office. All other features, functions, and components are the same as a standard NEM system.


  • 12- or 20-station Rack Mount Master Panel
  • 20- or 40-station Add-on Panel
  • Each panel occupies 3 rack spaces
  • 4-station expansion modules to easily add station capacity to Master or Add-on Panel
  • Expandable to 100 intercom stations with All Call
  • Subs call master with LED and electronic tone
  • Simplex open voice communication
  • Modular phone jack for VOX handset (included)
  • Intercom channels with LED status indication (blinking for call-in and steady while communicating)
  • Built-in relays for selective door release and CCTV camera activation while in communication with a remote station
  • Call-in LED and tone stay on until call is answered
  • One master, or dual master w/NEW-5 per 5 subs

Power Source 24V DC. Use one PS-2420UL per master panel and each add-on panel.
Consumption Maximum 45W
Power Output 500mW per channel for intercom. 3W per 10 stations for All Call/BGM.
Calling Pressing call button at remote activates tone and flashes yellow LED at master, remaining lit until answered. LED changes to steady yellow while communicating.
Communication Press-to-talk, release-to-listen at master, or voice actuated handset.
Hands free at remote.
Talk Channel Single talk channel
Wiring 1 common wire plus 1 individual wire per standard sub station looped, or 2 wires homerun from each sub station. 2 Common + 1 individual for NE-NVP-2DC/B.
Shielded cable is recommended. Use Aiphone #822202 (22AWG) or #821802 (18AWG) 2-conductor wire. (Multi-conductor also available)
Wiring Distance 420 w/ 22AWG
1000 w/ 18AWG
Momentary Contact N/O: 5A at 125VAC or 30VDC. N/C: 3A at 125/250VAC or 30VDC
Constant Contact 2A at up to 200V DC or 250V AC.
Mounting Rack mount in standard 19" EIA rack, each panel occupying 3 rack spaces
5-1/4" x 19" x 10"

System Layout:

voice communication, access control, cctv, cctv security system

(Loop wiring method shown. Otherwise, homerun 2 conductors from each remote.)
NOTE: Power sources for intercom, door strikes, and cameras not shown.