NXT D/D Controller with Mercury Inside Firmware This document covers wiring and controller reset information for the NXT controller with Mercury firmware..0 Wiring and Layout Diagrams. NXT-D/D Controller RS-8 Bus TB, TB, TB7, TB8, U, U, and s ARE NOT INSTALLED on -Door Controllers (Red) + VDC (Black) (Green) IO-Plus ( White) IO-Minus RS-8 Bus (Red) + VDC (Black) (Green) IO-Plus (White) IO-Minus Ethernet Direct Connection TX-Minus TX-Plus RX-Minus RX-Plus TB TB TB7 TB8 TB9 J NXT-D/D Installation Drawing Earth U J9 U J0 Power LED Battery abc s Power r J Thermal Fuse LED Tamper Switch TB0 Utility LEDs + VDC J J8 J7 de f gh i tuvw jklm U U Overcurrent LEDs nopq TB TB TB TB PCB Earth Lug Bus IO-Minus (White) IO-Plus (Green) RS-8 (Black) + VDC (Red) IO-Minus (White) IO-Plus (Green) (Black) + VDC (Red) Bus RS-8 Ethernet RJ- Connection Ethernet Activity LEDs S J RS-8 Bus Activity LEDs State LEDs P/N: 0997-00 - Rev. C See Table on page for LED definitions. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 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 of P/N: 0-00 Rev. B
NXT D/D Controller with Mercury Inside Firmware. LED Definitions Table Table : NXT Controller LEDs a Ethernet Comm Purpose LED State Purpose LED 0/00 a (D) active n (D) Link b (D) active o (D8) Activity c (D) active p (D) Utility Purpose LED active q (D8) Standard FW Config Reset d (D8) Power Purpose LED Host Channel Active e (D9) indicator r (D) Firmware Upgrade f (D0) Event Channel Active g (D) Thermal Fuse b Purpose LED unused h (D) indicator s (D) Mercury FW Config Reset i (D) RS-8 Bus Purpose LED RS-8 Bus c Purpose LED Bus Tx j (D) Bus Over Current t (D) Bus Tx k (D) Bus Over Current u (D) Bus Tx l (D) Bus Over Current v (D) Bus Tx m (D) Bus Over Current w (D7) a. PCBs at revision F or greater have the RS-8 Bus Over Current LEDs t, u, v, and w. PCB revisions earlier than revision F do NOT have these LEDs. b. If LED s is GREEN, the power wires are reversed; if LED s is RED, the unit is drawing too much current. c. If LED t, u, v, or w is Red, that individual bus is drawing too much current. Page of P/N: 0-00 Rev. B
NXT D/D Controller with Mercury Inside Firmware. Port Protection Transorbs are provided with the controller ship kit. They are used to protect the controller from voltage spikes induced on the port wiring by absorbing the excess voltage and slowly releasing it back into the circuit. Keri strongly recommends wiring in the transorbs provided with the controller ship kit. Refer to the Transorb Wiring Diagram below. Common - Lock / Alarm - Port Terminal Block + Fail-Secure Electric Lock Device or Alarm + Power Supply Common - Lock - Port Terminal Block + Power Supply + Fail-Safe Electric Lock Device NOTE: The Transorbs that Keri provides are non-polar; they can be installed in either orientation.. Isolation s For locking devices that may induce heavy voltage spikes Mag Locks and devices with heavy-duty solenoids such as turnstiles, vehicle gates, and overhead doors Keri recommends using isolation relays. Keri has an Isolation Kit (p/n IRP-). Please refer to the IRP- Isolation (p/n 08-00) for detailed information. Page of P/N: 0-00 Rev. B
NXT D/D Controller with Mercury Inside Firmware.0 Specifications. NXT-D/-D Dimensions NXT Controller PCB -.0 inches high by.0 inches wide by.00 inches deep, not including wiring connectors -. cm by.97 cm by. cm NXT Enclosure -.00 inches high by 0. inches wide by.00 inches deep -.0 cm by.7 cm by 7. cm. Power Requirements 0 to VDC @. A (maximum current draw for a fully loaded NXT-D/-D controller). Current Requirements at VDC 0 ma max for an NXT-D Controller 70 ma max for an NXT-D Controller 0 ma max for each NXT-x 8 ma max for each NXT-R, NXT-R, NXT-R, or NXT-R Reader ma max for each NXT-RK Reader 0 ma max for each NXT-RM Reader Interface Module NOTE: Keri recommends using separate, linear power supplies for the controller and the electronic locking device (magnetic lock, door strike, etc.). Should you decide to use the same linear power supply for both the controller and the electronic locking device, ensure the linear power supply provides enough current to drive the controller, the locking device, and any peripherals that may be connected (i.e., reader, x, RIM), including an adequate safety margin.. Contact Rating A @ VDC. Operating Conditions F to 0 F (0 C to 0 C) 0% to 90% Relative Humidity, non-condensing. Battery/Memory Retention -year lithium battery backup to support controller RAM and real-time clock.7 Cable Options RS-8 bus runs can daisy-chain together an NXT-x and NXT-Reader on one line. The total cable run distance should be no more than 00 feet from the NXT controller for runs with xs and no more than,000 feet for Reader-only runs. Refer to Table on page and Table on page. NOTE: Cable resistance causes a drop in voltage at the end of long cable runs. 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 x into an NXT controller. Remove power from the controller prior to connecting these devices. Page of P/N: 0-00 Rev. B
NXT D/D Controller with Mercury Inside Firmware Table : Reader and x Cable Options Connection Type Total Run Length Shielded, Stranded, Twisted-Pair a AWG Suggest CAT- b RS-8 bus from NXT-D/-D to NXT-x only up to 00 feet 8 - Data plus x Power - Data only Belden 87 shielded RS-8 bus from NXT-D/-D to NXT-x and NXT Readers up to 00 feet 8 - Data plus x Power - Data only Belden 87 shielded RS-8 bus from NXT-D/-D to NXT Readers only up to,000 feet for Data Belden 87 shielded a. Keri recommends this cable type for best system performance. b. Keri s preferred lower-cost option. Keri has no suggested vendor for this type of cable. Table : Controller Power, Inputs, and Outputs Cable Requirements Connection Total Run Length # of Conductors Shielded Stranded AWG Belden Equivalent controller power earth ground 0 feet a shortest path b N Y 8 8 N N 8 no specific requirement inputs and outputs c 00 feet N Y no specific requirement a. To meet CE and C-tick regulations, the length of the controller power line can be no longer than Meters (9.8 feet). b. Use the shortest possible path from earth ground point to PCB. Connect the earth ground only to the designated pin on the terminal block. This is important as all transient protection for the unit is made through this earth ground connection. For unit protection, the earth ground connection should always be made first. c. Values listed are minimums. Individual input and output devices may have more specific requirements. Page of P/N: 0-00 Rev. B
NXT D/D Controller with Mercury Inside Firmware.0 Resetting Controllers NOTE: Keri recommends resetting NXT controllers the first time these controllers are powered on.. Reset an NXT Controller with Mercury Firmware (MSC) NOTE: Resetting an NXT controller with Mercury firmware will restore the controller to a factory default state. It removes all network configuration data assigned to the controller such as the IP Address, Subnet Mask, and Gateway address. Keri recommends resetting NXT controllers the first time these controllers are powered on. Perform the following to reset an NXT controller with Mercury Firmware:. With the controller powered on, press S once. LED D9 will light green.. Power the controller off.. Press and hold S on, power the controller on, and keep S held on until LED i (D) lights green (about second).. Release S and the reset process begins. This takes about 0 seconds.. The reset process is complete when LED d (D8) starts blinking about once a second..0 Back-Door Web Browser Access When an end user enters the web browser configuration interface and changes the password from the default to a unique value, the default password is disabled. Should the unique password be lost, the user is locked out of the web browser. The new firmware provides a temporary window of access for the web browser, provided you can access the controller itself. This access method is available in controllers with firmware v.0.0 and greater. Contact Keri Tech Support for instructions on how to perform this back-door access. Keep in mind, a hardware reset will restore the factory default web browser password, as well as reset the controller to factory default values..0 Contact Keri Systems Keri USA 0 Bering Drive San Jose, CA 9 Telephone: (800) 0- (08) -800 Keri UK, Ireland, Europe Unit 7 Park Farm Industrial Estate Ermine Street Buntingford Herts SG9 9AZ UK Telephone: + (0) 7 7 Fax: (08) 77-79 Fax:+ (0) 7 7 0 Web: www.kerisys.com E-mail: sales@kerisys.com techsupport@kerisys.com Web:www.kerisystems.co.uk E-mail:sales@kerisystems.co.uk tech-support@kerisystems.co.uk End of document. Page of P/N: 0-00 Rev. B