NXT-6RK Proximity Reader and Keypad
Installation Guide
The Keri NXT-6RK is a keypad reader typically used for card + PIN dual verification applications. It
transmits keypad data in either 8-bit burst (default) or 26-bit Wiegand formats and can be used as a
keypad-only device. Since the NXT-6RK communicates via Wiegand format it requires an NXT-RIM
for operation.
1.0 Specifications
1.1 NXT-Reader Dimensions
• 4.6 inches tall by 3.0 inches wide by 0.7 inches deep
• 11.7 cm by 7.7 cm by 1.8 cm
1.2 Power/Current Requirements
• 10 to 14 VDC @ 115 mA (maximum current draw at 12 VDC)
1.3 Operating Conditions
• -40°F to 150°F (-40°C to 65°C) – 0% to 90% Relative Humidity, non-condensing
1.4 Read Range
• w/NXT-C - up to 6 inches (15.2 cm)
• w/NXT-I/S - up to 4 inches (10.2 cm)
• w/NXT-K - up to 3 inches (7.6 cm)
Read range is stated in a clean RF and electrical environment using credentials presented parallel to
the reader surface with the reader operating at 12 VDC. Read range may be affected by local
installation conditions. Read range will be reduced when mounted on metal.
• This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
• Changes to this equipment not expressly approved by Keri Systems, Inc. may void FCC certification and the user’s
authority to operate
this equipment.
• Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device
must accept any interference, including interference that may cause undesired operation of the device.
Page 1 of 7 P/N: 01217-001 Rev. A
NXT-6RK Proximity Reader and Keypad
Installation Guide
1.5 Keypad Formats
• 8-bit burst (default)
• 26-bit Wiegand
The Keypad format can be toggled between 8-bit burst and 26-bit Wiegand using the
KeypadDataMode card that is provided with the keypad. Present this card within 60 seconds of power
up to toggle between states.
1.6 Cable Options
Table 1: Cable Requirements
Total
Connection
RIM to
NXT-6RK
Reader
a. Heavier gauges than those listed are always acceptable.
b. Run lengths greater than 500 feet are not supported.
NOTE: On long cable runs, cable resistance causes a drop in voltage at the end of the cable run.
Ensure the appropriate power and current for your device is available at the device at the end of the
cable run. Heavier gauge cable reduces this effect.
NOTE: Keri does not recommend hot-plugging a Reader, RIM, or 4x4 into an NXT controller.
Remove power from the controller prior to connecting these devices.
Run
Length
500 feet
b
# of
Conductors
7 Y Y N 22 9537
Shielded Stranded
Twisted
Pair
AWG
a
Equivalent
Belden
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NXT-6RK Proximity Reader and Keypad
Cover snaps onto Base.
Insert screwdriver blade here
to remove Cover from Base.
3.00" (77 mm)
4.6" (117 mm)
0.70"
(18 mm)
Reader Cover
Reader Base
Drill Size for
Cable & Beeper
Access Hole
7/8" Dia
(22 mm)
3.125"
(79 mm)
Base mounting measurements
include Cover size in dimensions.
0.625"
(15.87 mm)
1.5" (38.10 mm)
3.314"
(84 mm)
3.939"
(100.05 mm)
Installation Guide
2.0 Installation Drawing
Page 3 of 7 P/N: 01217-001 Rev. A
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