Keri Systems NXT-6RK User Manual

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.

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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

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D10 - 12VDC

Reader Power

Selected

SW2

SW1

J2

1 2

3

4

5 6 7 8

NXT-6RK to RIM Wiring and Configuration Drawing

Step

Switch

Select
Switch

12VDC

5VDC

J2 Jumper Settings

for Reader Power

NXT-6RK Keypad Reader - D6

RS-485 Comm - D8

Reader Type

1

2

3

4

5

6

7

8

n/a

Beeper

LED

n/a

+ 12 VDC

Ground

Data0

Data1

n/a

Blue

Brown

n/a

Red

Black & Shield

Green

White

n/a

Beeper

Red LED

Green LED

+ 12 VDC

Ground

Data0

Data1

n/a

Blue

Brown

Orange

Red

Black & Shield

Green

White

Single-Line LED Dual-Line LED

Wire Color Wire ColorConnectionConnectionPin #

Reader LED Configuration

D1 - Single-line, three-color LED

D2 - Dual-line LED - Keri default

D3 - Single-line, two-color LED

Installation Guide

3.0 Wiring and Configuration Drawing

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Installation Guide

4.0 RIM Configuration

The default RIM configuration is for an MS-Series Reader using two line LED control (multi-color).
Perform the following steps to configure the RIM for the NXT-6RK Keypad Reader. Refer to the
Wiring and Configuration Drawing on page 4 for switch and LED locations, and Table 2 on page 6
for switch and LED definitions.

4.1 Enter Configuration Mode

1. Hold down both SW1 and SW2 for about two seconds.

2. All seven LEDs on the RIM will flash three times.

3. Release both SW1 and SW2, and the RIM is now in configuration mode.

4.2 Configure the RIM

The RIM is configured for the NXT-6KR when the Reader T ype LED (D6) is set and the Reader LED
Configuration LED (D2) is set.

1. First the RIM allows you to configure the Reader Type.

2. Press SW1 to step through the supported reader types. Each press of SW1 will step to the next

reader type.

3. When the D6 LED is lit, press SW2. The reader type is now set.

4. Now the RIM is ready to configure the Reader LED Configuration.

5. LED D2 should be lit indicating the RIM is set in it’s default mode. This is the correct mode for

the NXT-6RK Keypad Reader. If D2 is not lit, press SW1 to step through the supported LED line
configuration types. Each press of SW1 will step to the next LED configuration type.

6. When the D2 LED is lit, press SW2. The LED line control mode is now set.

7. The RIM is now configured and it reboots to accept the new parameters. The RIM’s LEDs will be

off for about 10 seconds as the unit resets itself. All seven LEDs will flash as the unit is rebooting
with the new configuration parameters. When the LEDs stop flashing, the unit is operational.

NOTE: Do not remove power from the RIM during the reboot process. Loss of power during
rebooting will invalidate any configuration changes you have made.

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NXT-6RK Proximity Reader and Keypad

Installation Guide

4.3 Verifying RIM Configuration

The corresponding reader type and line control mode LEDs are illuminated during operation. Refer to
the Drawing on page 1 for switch and LED locations, and the Table on page 2 for switch and LED
definitions to confirm your configuration settings.

Table 2: RIM LED Guide

LED Reader Type

D4 Keri MS Series

Keri factory default setting
D5 Wiegand
D6 NXT-6RK
D7 Wiegand Reader/Keypad Combo

LED Control
D1 single wire LED control – red, green, amber, off
D2 two wire LED control – red, green, amber, off

Keri factory default setting

a

D3

standard setting for Wiegand Readers using a single wire to drive the

D8 RS-485 Bus

D10 lit when set for 12 VDC reader power

a. This table is valid for RIM Firmware v03.01.06 and later. Please upgrade your firmware as necessary.

single wire LED control – red, green, off

LED (no amber)

Communication Active

J2 Reader Power Setting

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NXT-6RK Proximity Reader and Keypad

Installation Guide

5.0 Contact Keri Systems

Keri USA Keri UK, Ireland, Europe

2305 Bering Drive

San Jose, CA 95131

Telephone: [phone]

[phone]

Fax: [phone] Fax:+ 44 (0) 1763 274 106

Web: www.kerisys.com Web:www.kerisystems.co.uk

E-mail: [e-mail]

[e-mail]

End of document.

Park Farm Industrial Estate

Telephone: + 44 (0) 1763 273 243

E-mail:[e-mail]
[e-mail]

Unit 17

Ermine Street

Buntingford

Herts SG9 9AZ UK

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