Keri Systems NXT RIM - Manual (Page 2)

NXT Reader Interface Module
Installation Guide
Page 2 of 5 P/N: 02501-001 Rev. L
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.
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.
Table 1: Cable Requirements
Connection
Total Run
Length
# of
Conductors
Shielded Stranded
Twisted
Pair
AWG
a
a. Heavier gauges than those listed are always acceptable.
Belden
Equivalent
RIM to Keri-MS or
Wiegand Single-line
LED Reader
500 feet 6 Y Y N 22 9536
RIM to NXT-6RK
or Wiegand Dual-
line LED Reader
500 feet 7 Y Y N 22 9537