Keri Systems NXT-2D-MSC, NXT-2D Specsheet

NXT - 2D
2 Door/4 Reader TCP/IP Controller

• 2 Door/4 Reader Controller for Keri’s NXT
product line

• On-board TCP/IP connectivity – no network
adapters required

• Manages 2 doors with In/Out capability when using
NXT Readers

• Reduce cabling costs over RS-485, Current Loop,
or other traditional networking schemes by using
shielded CAT-5

• Utilize existing LAN/WAN/Ethernet or pull your
own dedicated CAT-5/6 Network

• Embedded MAC Address for one button
Auto-Configuration

• Standard 4 Pin Block and RJ-45 Jack built-in
for network connection

• Re-assignable Inputs and Outputs

• Quick Disconnect Connectors

• 50,000 Cardholders, 10,000 Event Buffer

• Locking Metal Enclosure (no-enclosure option)

• 128 Bit Encryption

• Keri offers NXT Controllers with optional Mercury
Firmware to provide enhanced functionality

Data Sheet

NXT - 2D Two Door/Four Reader TCP/IP Controller

The NXT-2D Controller is built for today’s IT environments. By using an existing TCP/IP network,
controller cabling costs can be eliminated. Or, if building a new network, they can be reduced up to
50% over traditional hard-wired access systems by using inexpensive, CAT-5 cable. The NXT-2D is
designed to be extremely intelligent with little reliance on network traffic for decision making,
allowing it to be thrifty with any network’s valuable bandwidth. With Ethernet functionality built
directly into the controller, Keri’s proprietary MAC addressing scheme allows for reliable hardware
discovery and true one-button autoconfiguration.

To expand the system’s flexibility, up to two companion 4X4 Input/Output boards (NXT-4X4) can be
added - one to each of the controller’s RS-485 trunks (buses). Customers can choose between Keri’s
line of highly secure, 4-wire NXT Series Proximity Readers with reader supervision that also provide In/
Out reading capability (4 Readers), or any reader with a standard Wiegand output or Keri’s MS Series
Proximity Readers via the NXT-RM3 Reader Interface Module. To manage the system, Doors.NET software
has much of the same look and feel as Keri’s acclaimed original DoorsTM software, but with the added
functionality of a Client/Server architecture.

2305 Bering Drive l San Jose, California 95131
408-435-8400 l Toll Free: 800-260-5265 l Fax: [phone]

e-mail: [e-mail] web: www.kerisys.com

NXT - 2D
2 Door/4 Reader TCP/IP Controller

Size (Enclosure)

13.125” H x 10.625” W x 3.06” D
(33.34 cm x 26.99 cm x 7.77 cm)

Size (PC Board)

5.6” H x 6.6” W x 2.55” D
(14.28 cm x 16.83 cm x 2.55 cm)

Weight (In Enclosure)

4.95 Lbs (2.25 Kgs)

Input Voltage

+ 12 VDC nom. (10 - 14 VDC)

Current Draw

570 mA typical

SPECIFICATIONS:

Inputs (4, reassignable)

Door Contact Switch (2)
Request to Exit (2)
Expandable up to 12 Inputs

Outputs (2, reassignable)

1.0 amp (24 VDC max.) dry circuit
Expandable up to 10 Outputs

Reader Capacity

4 with NXT Readers *
2 with Wiegand or MS Readers

* 4 Reader capacity requires the

Mercury Firmware option and
NXT Readers

Presented By:

Buffer Capacity

50,000 Cardholders
10,000 Events

Temperature / Humidity

-40° F to 140° F
(-40° C to 60° C)
0-90% Non Condensing

Communication

To Server: TCP/IP 10/100 bus
Between Controllers: TCP/IP
10/100 bus

Lithium Battery

5 years Memory Retention

P/N 01789-001 Rev. G