Honeywell NetAXS NX4S1 Access Control Unit PDF Installation Guide

An access control system protects and preserves an enterprise’s resources by providing authentication, authorization, and administration services. Authentication is a process that verifies a user’s identity. If the user is verified, the system then either grants or denies access to specific areas and resources. Administration includes the creation and modification of user accounts and access privileges. An access control system consists of hardware and software, usually configured in a network environment over a standard network protocol. Access control units, readers, door strikes, and video and other devices, for example, are configured to control and monitor the access to a company site. The NX4S1 access control unit consists of a NetAXS™ panel control board and battery. The components are enclosed in a pre-wired cabinet. The 16.5 VAC power supply (Basler Electric Model BE156250CAA0004, M&G Electronics Model MGT1650, or Honeywell Access Systems part number X-4) provides power for the panel control board, which is a four-reader panel providing access control for up to four doors. The following figure shows the NX4S1 panel components.

The NetAXS™ panel is a four-reader board that controls up to four doors by providing up to 14 inputs and 8 outputs. The NetAXS™ panel may be used as a stand-alone panel with independent card and transaction storage or, with a host software upgrade, as a fully monitored online access control device. The NetAXS™ panel also supports up to 30 downstream panels in a variety of network configurations. See Communications, page 16, for descriptions and illustrations. Fourteen inputs are capable of four state supervision: Normal, Alarm, Short and Open. Eight inputs are used as door control with one input used for request to exit on each door and one input used for door status on each door. Supervised inputs for Tamper, External Power Fail and four Reader Tampers are supplied as well, and they can be used as additional inputs when not required for their default purpose. Caution: The NetAXS™ board must not be used to power locks. Only through the relay board can the common power supply be used for the NetAXS™ and locking devices.

Real-Time Clock Protection The panel RTC is backed up using a super capacitor. The super capacitor will power the real-time clock for one week in the absence of primary power or backup battery. Memory Protection The NetAXS™ panel continuously saves database and event information in
non-volatile FLASH memory. This activity prevents the panel from losing data when power is lost. Reader and AUX Power Reader power is supplied within the range of 11.2 VDC and 12.4 VDC with a maximum current of 600 mA. AUX power is supplied within the range of 10.5 VDC and 12.4 VDC with a maximum current of 500mA. The current can be distributed throughout the Reader Power or AUX Power in any configuration as long as the
maximum draw is less than 600 mA: Reader 1 + Reader 2 + Reader 3 + Reader 4 + AUX Power < 600 mA.

Power Supply The NetAXS™ panel is capable of operating on AC or DC input power. UL has not reviewed the use of a DC power supply with the NX4S1 panel. The AC input must be supplied at 16.5 VAC utilizing one of the following UL-listed, 50 VA, Class 2 transformers: Basler Electric Model BE156250CAA0004, M&G Electronics Model MGT1650 (Honeywell Access Systems part number X-4). Use a two-wire, 18 AWG shielded cable to run the AC power from the wall transformer to the enclosure. The AC voltage is non-polarized and connects to TB17-1 and TB17-2. A power-on LED assembly is supplied with the NX4S1. It is required by UL to be mounted for external viewing. Refer to Installation, page 9 for details. When there is sufficient AC power, the power-on LED illuminates. If the AC power is off, the LED is not illuminated. DC power is also non-polarized. The panel uses 24 VDC at 1.5 Amp wired into TB17-1 and TB17-2. The panel includes an input power indicator that illuminates when input voltage is present. If the indicator is not illuminated, the input voltage is either off or too low to operate the system.

Battery
One CASIL CA1270 12 VDC, 7 A-Hr sealed lead-acid battery (HAS part number 3-000066) provides standby backup power. When the primary power is off, the NetAXS™ panel automatically switches to the battery for continuous operation. The battery provides three hours of standby backup power. The NetAXS™ panel is capable of providing 300 mA at 13.7 VDC for battery charging. The panel has deep discharge protection built in for the protection of the battery. If the battery discharges below 10.4 V, the panel disconnects the battery and ceases operation. Replace the battery every two to two-and-a-half years, or more often if the panel has a high rate of backup use.

Installation
Perform the following steps to install the NX4S1 panel: Warning: Use a static strap whenever touching the panel to ensure protection from Electrostatic Discharge (ESD).
1. Review the panel layout, cable runs, and power needs.
2. Mount the enclosure at the proper location on the wall. Use appropriate anchors for the mounting material.
3. Run all I/O wires to the enclosure, and properly mark each wire for its use.
4. Run appropriate length of two-wire, 18 AWG shielded cable from the wall transformer to the enclosure. The AC input must be supplied at 16.5 VAC utilizing one of the following UL-listed, 50 VA, Class 2 transformers: Basler Electric Model BE156250CAA0004, M&G Electronics Model MGT1650, or Honeywell Access Systems part number X-4. The AC voltage is non-polarized and connects to TB17-1 and TB17-2. Caution: Do not plug in the wall transformer at this time, and do not connect to a receptacle controlled by a switch.
5. Run a 14 AWG green wire from the enclosure to a proper earth ground.
6. Remove each terminal plug one at a time to wire the properly labeled cables. See the wiring diagram (Figure 33 on page 47). Leave enough shield drain length to secure to the grounding stud. Also, maintain a distance of at least .25 inches between the non-power limited wiring (battery backup/charger wiring) and all other wiring, which is power-limited Class 2 wiring. Caution: Do not plug in the wall transformer at this time.
7. Connect the shield and the green earth ground to the enclosure’s grounding studs (see Figure 1 on page 6) for the location of the enclosure’s grounding studs).
8. Set DIP switch settings for the panel address (Table 3 on page 22), and set J36 and J37 for communication termination and biasing (see “System Configuration“ on page 26 and “Jumper Settings“ on page 23).
9. Check all wiring at this time. Caution: Improper wiring can cause damage to the NetAXS™ panel at power up resulting in a loss of warranty.
10.Power up the panel. The power-up sequence may take up to two minutes, after which the RUN LED blinks green. The RUN LED is located near Terminal Block (TB) 8. After the power-up sequence, check the LEDs to be sure the panel has powered up properly (see “LED Operation“ on page 42).
11.Configure the panel by following the instructions in the NetAXS™ Access Control Unit User’s Guide.
12.If you are using a battery backup function, place the 7 A-Hr battery in the enclosure. 13.Attach the positive (red) Power Supply-to-Battery cable to the positive (red) battery terminal.

Download Honeywell NetAXS NX4S1 Access Control Unit PDF Installation Guide


Related E-Books:

    None Found

July 2, 2010 | Posted in Electronic Manual, Honeywell Manual

Comments

Leave a Reply