NOHMI BOSAI PCA-2706XA-NIU Network Interface Unit

Made in Japan
Manufacturer: NOHMI BOSAI
Model: PCA-2706XA-NIU

Features of PCA-2706XA-NIU

  • UL 864, 9th edition listed for compliance
  • Supports up to 64 nodes on the network for extensive connectivity
  • Compatible with NFPA Styles 4 and 7 wiring
  • Includes 6 status LEDs for easy monitoring
  • Compact, downsized PC assembly for efficient installation
  • Designed for quick and simple installation

Description of PCA-2706XA-NIU

  • The PCA-2706XA NIU enhances the FACP system with its microprocessor-based Arcnet controller and memory, designed for smooth communication across multiple FACPs. It works with the Main Control Unit (PCA-N3060-MCU) via RS-232C, providing vital status updates on port circuits and network connectivity. You can use the PC-based Configuration Program (PCCP) to efficiently manage and transmit data to the PCA-N3060-MCU.This assembly constructs the RS-485 network, facilitating communication with other FACPs on the network, enabling up to 195,840 addressable devices. For systems needing fiber optic connectivity, the PCA-2707XA FIM or PCA-N3060-FIM2 modules provide that option.

    Six status LEDs simplify monitoring:

    • [+5V] LED (green) ensures the system receives proper power.
    • [TXN] LED (green) confirms normal communication with the PCA-N3060-MCU.
    • [TXP] LED (green) indicates proper communication with PCCP.
    • [TXD] LED (green) tracks network communication.
    • [ATBL] LED (yellow) and [BTBL] LED (yellow) warn of open circuit issues in Port A and Port B respectively.

    The PCA-2706XA NIU draws 24 VDC from the Power Supply Module (PCA-N3060-PSU), converting it to 5 VDC through its DC/DC converter to power internal components. Additionally, the PCA-2707XA FIM or PCA-N3060-FIM2 modules are also powered by this unit when connected.

Specification

NoItemSpecification
1Maximum 24 VDC standby current54 mA
2Maximum 24 VDC alarm current54 mA
3Ambient operating temperature range0 to 49°C (32 to 120°F)
4Maximum ambient operating humidity93% non-condensing
5Network connectionDaisy chain, RS-485
6Network wiring styleNFPA Styles 4 and 7
7Maximum no. of nodes64
8Maximum wiring DC resistance72 Ω
9Maximum wiring capacitance80 nF
10MCU/PCCP connectionRS-232C
11Dimensions150 mm (5.9″) (H) x 100 mm (3.94″) (W) x 25 mm (0.98″) (D)

Installation and Wiring Information

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