Keri Systems NXT 4D DS W Part#'s Product Guide Four Door Eight Reader Controller Data Sheet Rev I

User Manual: Keri Systems NXT-4D Product Guide Product Guide

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2305 Bering Drive - San Jose, California 95131
408-435-8400 - Toll Free: 800-260-5265 - Fax: 408-577-1792
• 4 Door/8 Reader Controller for Keri’s NXT
product line
• On-board TCP/IP connectivity – no network
adapters required
• Manages 4 doors with In/Out capability when using
NXT Readers
• Utilize existing LAN/WAN/Ethernet or pull your
own dedicated CAT-5/6 Network
• Embedded MAC Address for one button
Auto-Con guration
• 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 Bu er
• Locking Metal Enclosure (no-enclosure option)
• 128 Bit Encryption
• Keri o ers NXT Controllers with optional Mercury
Firmware to provide enhanced functionality
The NXT-4D 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, shielded CAT-5 cable. The NXT-4D is designed to be extremely intelligent with little reliance
on network tra c for decision making, allowing it to be thrifty with any network’s valuable bandwidth. With Ethernet
functionality built directly into the controller. Keri’s propriatary MAC addressing scheme allows for reliable hardware
discovery and true one-button autocon guration.
To expand the system’s capabilities, up to four 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 capaiblity (8 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.
NXT - 4D
4 Door / 8 Reader TCP/IP Controller
Note:
Controller shown without included enclosure.
PN: 01793-001 Rev. I
NXT 4D - 4 Door / 8 Reader TCP/IP Controller
DATA SHEET, Page 2 of 2
Presented By:
Speci cations:
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):
5.00 Lbs (2.27 Kgs)
Input Voltage:
+ 12 VDC nom. (10 - 14 VDC)
Current Draw:
650 mA typical
Inputs (8, reassignable):
Door Contact Switch (4)
Request to Exit (4)
Expandable up to 24 Inputs
Outputs (4, reassignable):
1.0 amp (24 VDC max.) dry circuit
Expandable up to 20 Outputs
Reader Capacity:
8 with NXT Readers *
4 with Wiegand or MS Readers
* 8 Reader capacity requires the Mer-
cury Firmware option and
NXT Readers
TB1
TB2
TB3
TB4
TB5
TB6
TB7
TB8
TB10
J2
J7
J8J9
J10
S1
J1
+12 VDC
Earth Ground
Power Ground
6
5
4
3
2
1
123
4
3
2
1
1
2
3
4
1
2
3
4
4
3
2
1
6
5
4
3
2
1
1
2
3
4
5
6
1
2
3
4
5
6
IO-Minus (White)
IO-Plus (Green)
Ground (Black)
+12 VDC (Red)
IO-Minus (White)
IO-Plus (Green)
Ground (Black)
+12 VDC (Red)
(Red) +12 VDC
(Black) Ground
(Green) IO-Plus
( White) IO-Minus
(Red) +12 VDC
(Black) Ground
(Green) IO-Plus
(White) IO-Minus
Ethernet RJ-45 Connection
Tamper
Switch
Bus 1
Bus 2
Bus 3
Bus 4
J6
PCB Earth Ground Lug
J3
RS-485
RS-485
RS-485
RS-485
Battery
abc
de fghi
jklm nopq
r
s
NXT-4D Installation Drawing
Relay
Relay
Relay
Relay
tuvw
U32 U33
U34
U35
NO - Relay
Common / Door Lock - Relay
NC - Relay
Door Switch - Input
Ground
REX - Input
NO - Relay
Common / Door Lock - Relay
NC - Relay
Door Switch - Input
Ground
REX - Input
REX - Input
Ground
Door Switch - Input
NC - Relay
Common / Door Lock - Relay
NO - Relay
REX - Input
Ground
Door Switch - Input
NC - Relay
Common / Door Lock - Relay
NO - Relay
Power LED
Thermal Fuse
LED
Ethernet
Activity LEDs
RS-485 Bus
Activity LEDs
Relay State
LEDs
Utility LEDs Overcurrent LEDs
Port 1
Port 2
Port 3
Port 4
Bu er 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
ORDERING INFORMATION:
Part Number Description
NXT-4D 4 Door NXT Controller with Keri  rmware
NXT-4D-MSC 4 Door/8 Reader NXT Controller with Mercury  rmware

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