Keri Systems NXT-1RE Installation Manual

NXT-1RE/-3RE/-5RE Exit Reader
Installation Guide
Keri NXT controllers with Mercury firmware now provide an Entrance/Exit door control feature. This Entrance/Exit
feature allows two readers to be wired to one bus on the NXT controller to control entrance and exit through that one door.
Access requests entering through the door use a standard NXT-R Reader (designated as an Entrance Reader). Access
requests exiting through that same door use an NXT-RE Reader (designated as an Exit Reader). Otherwise, all
specifications and wiring information for the two reader types are identical.
NOTE: The Entrance/Exit Door reader feature is currently only available on NXT controllers using the optional, Mercury
Inside firmware. For NXT controllers using standard NXT firmware, a reader configured as an Out-door is not recognized
by the Doors.NET software.
1.0 Wiring and Layout Diagrams
1.1 NXT-1RE/-3RE/-5RE Exit Readers
An NXT Exit Reader is wired to a bus the same way a standard NXT Entrance Reader is wired, but both readers are wired
to the same bus. This can be done using two separate reader cables wired into the terminal block at the bus on the
controller, or by splicing the two readers together near the door and running one cable to the controller.
LED
Beeper
In Reader
LED
Beeper
Out Reader
On power up, an Exit Reader's LED will flash red, then green, then stay at amber.
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.
NXT-1R/-3R/-5R Exit Reader Installation Drawing
4-Conductor - OR - CAT-5 Cabling
Shielded 4-Conductor Cabling
IO-Minus (White)
IO-Plus (Green)
Ground (Black)
+12 VDC (Red)
Page 1 of 6
Blue
Shield (Silver)
total cable length
other peripheral
P/N: 01250-001 Rev. C