Keri Systems NXT RIM User Manual
NXT Reader Interface Module
P/N: 02501-002 Rev. J
D10 - 12VDC
Reader Power
Selected
SW2
SW1
J2
1 2
3
4
5 6 7 8
NXT-RM Installation Drawing
Reader LED Configuration
Step
Switch
Select
Switch
12VDC
5VDC
J2 Jumper Settings
for Reader Power
Keri MS Reader - D4
Wiegand Reader - D5
NXT-6RK Keypad Reader - D6
Wiegand Combo Reader - D7
Reader Type
D1 - Single-line, three-color LED
D2 - Dual-line LED - Keri default
D3 - Single-line, two-color LED
RS-485 Comm - D8
1
2
3
4
5
6
7
8
Antenna
Beeper
Red LED
Green LED
+ 12 VDC
Ground
n/a
n/a
Blue
Green
White
Brown
Red
Black & Shield
n/a
n/a
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 LEDKeri MS Reader
Wiegand Reader
Connection Wire Color
* Farpointe
Wire Color
* Farpointe
Wire Color
ConnectionConnectionPin #
* For other Wiegand reader types, please refer to the reader manufacturer’s color code.
Installation Guide
1.0 Wiring and Layout Diagrams
1.1 Reader Interface Module (RIM)
NOTE: 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.
Page 1 of 5 P/N: 02501-001 Rev. L
NXT Reader Interface Module
Installation Guide
2.0 Specifications
2.1 Size
• When mounted on the NXT Controller
- 6.50 inches high by 5.50 inches wide by 2.50 inches deep, not including wiring connectors
- 16.51 cm by 13.97 cm by 6.35 cm
2.2 Power/Current Requirements
• 10 to 14 VDC @ 100 mA (maximum current draw at 12 VDC)
2.3 Operating Conditions
• 32°F to 150°F (0°C to 60°C) – 0% to 90% Relative Humidity, non-condensing
2.4 Cable Requirements
The total RIM to reader cable length must be less than 500 feet.
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.
Table 1: Cable Requirements
Connection
RIM to Keri-MS or
Wiegand Single-line
LED Reader
RIM to NXT-6RK
or Wiegand Dual-
line LED Reader
a. Heavier gauges than those listed are always acceptable.
Total Run
Length
500 feet 6 Y Y N 22 9536
500 feet 7 Y Y N 22 9537
# of
Conductors
Shielded Stranded
Twisted
Pair
AWG
a
Equivalent
Belden
3.0 RIM Configuration
The RIM allows either Keri MS or Wiegand readers/credentials to be recognized and read by NXT
controllers. 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 your application. Refer to the
Drawing on page 1 for switch and LED locations, and the Table on page 3 for switch and LED
definitions.
Page 2 of 5 P/N: 02501-001 Rev. L
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