OP-400A, NJP-400A, NJP-401A

OP-400A, NJP-400A, NJP-401A

NJP-400A is a relatively small but very high-performance modular analogue addressable fire alarm central control panel. By using the latest technology, it guarantees extremely reliable fire detection and alarm as well as optional steering of devices for the prevention and spreading of fire, that is, for extinguishing it. It uses the Apollo S90 / XP95 protocol for communication with addressable detectors. It can be used for the control of the Apollo and other conventional, non-addressable, detectors. It also sends gas, SOS and technical alarms. NJP-400A performs the steering directly from the central control panel or through addressable interfaces. It allows the operation in network4 – a connection of multiple central control panel and remote IP-400A displays at various locations in the same or in different buildings into a single system. The connection to the graphical control centre GNC makes the display of alarms and other events even clearer. A slightly smaller version with the label NJP-401A is also produced.


  • OP-400A, NJP-400A, NJP-401A

    OP-400A, NJP-400A, NJP-401A

    in full compliance with European standards EN54-2 and EN54-4,

  • capacity: one to four addressable loops or 8 to 64 conventional lines; any combination is also possible,
  • easy to connect and use,
  • fully adaptable to all the requirements of facilities,
  • high performance and price ratio,
  • a log of the last 1300 events,
  • the possibility to connect a standard printer with the EIA-232 interface,
  • the ability to operate in a network to control large objects,
  • virtually unlimited steering by arbitrary logical laws,
  • displays the status of up to 128 groups (zones) of detectors,
  • large current capacity of the loop allows the connection of several current-demanding addressable elements (sirens, beacons …),
  • the version labelled NJP-401A is installed into a smaller case and has the capacity limited to two addressable loops or 32 conventional lines.


  • fire detection and alarm,
  • detection and alarm in case of increased concentrations of toxic and flammable gases and adequate steering,
  • steering of devices used to prevent the spread of fire (fire doors, dampers for smoke and heat),
  • steering and control of installed fire-extinguishing systems (FM-200, Novec 1230, Argonite, Hi-Fog water mist, CO2 and others),
  • various technical alarms,
  • SOS hotel signalisation.

Compatibility with fire elements:

  • požarna centrala njp400a - 1Apollo XP-95 and XPlorer analogue addressable detectors,
  • conventional non-addressable detectors Apollo S60 / S65, Orbis and detectors by other producers,
  • intrinsically safe version (EExia) of Apollo detectors and detectors by other producers for use in areas with risk of explosion,
  • addressable interfaces Apollo and Zarja Elektronika and others with Apollo communication protocol,
  • detectors of increased gas concentration with a standard 4-20 mA output (direct connection to the central control panel or to the addressable interface; the alarm limits are defined in the central control panel and can be reset),
  • various fire alarm and other detectors with a simple contact, connected to the central control panel with monitored lines,
  • Zarja Elektronika SOS addressable detectors,
  • executing elements with a nominal steering voltage of 24 V (sirens, beacons, activators and others).


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NJP-400 is a high-performance modular central control panel with the possibility of almost unlimited flexibility to all facilities and requirements. An effective and proper performance requires parametrization: enter all information about the installed modules and connected elements (detectors, interfaces, execution elements, etc.) and the information about the necessary activities in case of alarm, errors and other events into the central control panel program. Parametrization can be carried out: OFF-LINE: The data is entered in a personal computer without the connected central control panel and is later transferred to the central control panel through the COM connector. The graphical user interface makes parametrization is simple, fast and clear. ON-LINE: The information is entered to a working central control panel with the use of its keyboard and the help of the menus on the LCD panel. PC is not required; it is, however, recommended for the backup of parameters. Parametrization is simple and requires no programming skills.


The composition of the central control panel:

NJP-400A is a modular central control panel. It consists of compulsory and optional modules, which are added to the compulsory ones depending on the size and requirements of an individual facility. The minimal assembly contains all the compulsory modules (called “base”) and at least one optional module LIMO-Ap or LIMO-Ko.

The central control panel case (compulsory module):

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The metal case of the central control panel contains all the compulsory modules, DIN rail mounting for additional industrial relays, a battery 2 x 12 V up to the capacity of 27 Ah and up to eight optional modules. Version NJP-401A: The case has room for a battery of up to 12 Ah and for up to four optional modules, of which only two can be LIMO-Ap.

UPMO managing-display module (compulsory module):

The module displays events on the 2 × 40 character LCD and aggregated information on events and statuses of the central control panel with LED lights. The module has lights installed for a clear display of the state of each of the group (up to 128). The locations or functions of individual groups are entered in the entry field on the front panel under the lights. UPMO allows the management and parametrisation of the central control panel using keys. Clear menus on the LCD display assist the user with work.

The NAMO power-supply module (compulsory module):

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The power-supply module is responsible for supplying power to the fire alarm central control panel and all the connected elements ( detectors, sirens …), for charging and monitoring of the battery for back-up power, for protection of circuits from short-circuit and of battery from deep discharge, for the switch of the power supply from the network and the back-up source, and for reporting the state and errors to the central processing unit. A micro-controller is installed in the power supply to enhance its reliability. The NJP-401A is fitted with a weaker power supply module.

The CPMO central processing module (compulsory module):

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CPMO is connected to the remaining modules through an internal communication bus. It is responsible for the central control and steering of the entire system. It has FLASH memory for the program and battery-backed RAM for system parameters and the log of the last 1300 events: alarms, interferences, errors and management. On it, there are also compulsory relay outputs for error and alarm and two additional transistor outputs controlled by two inputs. Inputs and outputs can be programmed. The COM 1 and COM 2 connectors on CPMO are used for the connection of a personal computer, printer, modem or for the transmission of messages to the alarm reception centre.

Line Module Apollo LIMO-Ap (optional module):

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The module controls one addressable loop with up to 126 addressable elements. It supports the Apollo S-90 / XP-95 protocol. Special algorithms and a communication interface provide reliable communication with addressable elements even in situations with intense disturbances, as well as reliable detection without false alarms. High current capability of the loop allows the connection of elements with high power consumption (addressable siren,beacons, …) directly from the loop. The module is produced in three versions: for 32, 64 or 126 addresses. The central control panel can have up to four LIMO-Aps (in NJP-401A, no more than two).

Conventional line module LIMO-Ko (optional module):

The module allows the connection of eight lines with conventional (non-addressable) detectors Apollo S-60/65, Orbis and similar detectors of other producers, also in the explosion-proof version EExia. požarna centrala njp400a - 10

Fire alarm njp400a – 10Line with a stabilized power supply voltage of 28 V is controlled by a terminating resistor. Detectors of increased gas concentration with 4 to 20 mA standard output by different producers or various simple contact detectors (manual detectors, switches for the control of the sprinkler system, technical alarms …) can also be directly connected to the line. Considering the available places for optional modules, the central control panel has space for no more than 8 LIMO-Ko (in NJP-401A, no more than four).

Input-output module VIMO (optional module):

The module has eight transistor outputs and eight analogue inputs. Both can be programmed. The outputs are protected against overload and current-limited; to increase the current capacity, two or more equally parametrised outputs can be connected in parallel. Inputs can be used to control the closed output circuits, for connecting contact detectors and also to control different voltages. Considering the available places for optional modules, the central control panel has room for no more than 8 VIMO modules (NJP-401A, no more than four), but usually there is at least one line module installed, which means that the actual number of VIMO modules is smaller.

Network module MRMO (optional module):

The network communication module allows the connection of up to 16 central control panels, remote displays, or any combination thereof into a single system. Redundancy link is made in the form of a communication ring. Where redundancy is not required, the connection has the form of a bus (the ring is interrupted). The module has two network connections for copper conductors (UTP cable, telephone pair) or for different optical fibre conductors, or alternatively, one for copper and the other one for optical fibre conductor. The distance between adjacent units is 1500 m or more, depending on the conductor used. The module is only needed for the connection of the central control panels into a network or for the connection of remote displays. MRMO does not occupy any of the places available for optional modules (it is installed to the place reserved for it).

KOMO communication module (optional module)

KOMO communication module is designed for two-way connection of one central control panel (the transfer of all events and steering) with any standard SCAD (graphical control centre) with standard MODBUS protocol through EIA-232 or TCP / IP bus. In the central control panel, it is connected to the internal communication bus, and is installed in the place reserved for MRMO.

Communication gateway GA-400 (optional module)

The communication gateway plays the same role as the communication module, but it is used to connect multiple central control panels connected in a network to the standard MODBUS. Unlike KOMO, GA-400 is connected to a redundancy connection NETWORK 1 AND NETWORK 2. It is built into an independent case (powered by 24V from the central control panel).

MO-01 modem (optional module – standard program of Zarja Elektronika):

The modem enables the connection of the central control panel to the alarm reception centre through an analogue telephone line. The ordinary Ademco Contact ID protocol is used for communication. MO-01 is connected to the COM 1 or COM 2 connection of the central processing module. The modem does not occupy any of the places available for optional modules (it is installed to a place reserved for it and is powered by 24V from the central control panel).

Central control panels in a network

NJP-400A allows the connection of central control panels and / or remote display control units OP-400A (network devices) into a network. To operate in a network, each device needs a MRMO network module, which is connected to the MRMO of the adjacent network devices through a copper or optical fibre connector. For a complete redundancy connection, the network is made in the form of a closed and monitored ring. The communication between network devices complies with the “peer to peer” principle (each central control panel communicates with all the remaining ones). The network system can be equivalent or hierarchical. In the parametrization of an individual network device, it is specified for every central control panel which events it receives and displays or which commands (from which central control panel or OPA-400A) it receives and carries out. The communication protocol is robust and redundant and, together with the special design of the hardware, it provides highly reliable operation without errors and downtime.

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The remote display control unit (OP-400A):

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The fire alarm central control panel NJP-400A – 12OP-400A has the same UPMO as the central control panel, but in a smaller case and it is not part of the central control panel, it has no power supply or line modules. In a parametrized range, it allows remote managing and display of events in the same way as the central control panel. Electric power supply is supplied from the central control panel through a copper line. There can be several remote displays in any combination with the other network devices in the system.

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Graphical Control Centre:

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As an upgrade of the system, a personal computer can be connected to the central control panel or a network of NJP-400A central control panels, graphically displaying all the alarms on the floor plan or the image of the facility, in any number of levels, errors, switch-offs and other selected events, in order to facilitate the work of the security guard. Required operation of the central control panels or connected executing devices is also possible with a click of the mouse on certain graphical elements on the PC screen. KOMO is required to connect individual central control panels, and GA-400 is required for central control panels in a network.

Network power supply: 230V + 10% -15% max. 230VA, NJP-401A 100VA
The capacity of the power supply: battery charger: 1A, NJP-401A: 0.5A external consumption: 3 A, NJP-401A: 1A, both briefly: 10A, for powering looks and lines: 2 A, NJP-401A: 1A
Backup power: gas-tight, lead-acid batteries 2 x 12V 27Ah largest, NJP-401A: up to 12Ah
External dimensions: 520x580x150mm, NJP-401A: 424x470x125mm, OP-400A: 324x230x70mm
Current consumption from the reserve power supply (at 24V): the base without optional modules: 70 mA, NJP-401A: 65mA, OP-400A: 50 mA
Mass: base without the batteries: 14kg, NJP-401A: 9.2kg base with batteries 27Ah: 32kg base with batt. 12Ah: 21.4 kg, NJP-401A: 16.6kg OP-400A: 2.5kg
Temperature range of operation: -5°C to +50°C
Construction: metal case, IP30 tightness, front plate polycarbonate foil
Cable start: openings on the back side 5x, NJP-401A: 4x OP-400A: openings on the top, bottom and back
Capacity: modular design, the possibility of installing up to 8 optional modules, at NJP-401A, no more than 4
Apollo LIMO-Ap line module: one addressable loop Apollo XP-95 or Discovery, the number of addresses (3 versions of the module): 32, 64 or 126, there are no more than four modules in the central control panel, in NJP-401A no more than two, the current capacity of the loop: 500 mA
LIMO-Ko conventional line module: 8 conventional lines with stabilized power supply of 28V (no more than eight modules in the central control panel, in NJP-401A four) quiescent current of the line: 4.5mA (terminating resistor 6k2)
VIMO input-output module: 8 current-limited transistor outputs, 24V 1.4A, can be joined in parallel to increase capacity, 8 analogue inputs to control the closed output circuits or control of contact detectors, inputs and outputs can be programmed,
KOMO communication module for connecting an individual central control panel to GNC through MODBUS RTU (EIA-232 or TCP / IP), connected internal communication bus, installed in the site for MRMO
Communication gateway GA-400 for the connection of central control panels in the GNC network through MODBUS RTU EIA-232 or TCP / IP, connected to redundancy network NET 1 and NET 2, installed in its own case, requires 24V power supply from the central control panel
MO-01 modem (does not take any of the 8 places for optional modules, or 4 in the case of NJP-401A) (standard module of Zarja Elektronika): connected to CPMO connector COM 1 or COM 2, allows the transfer of alarms and errors to the alarm reception centre through an analogue telephone line with the Ademco Contact ID protocol.
Always present inputs and outputs (on CPMO): two EIA-232 connectors (COM 1 and COM 2) for the connection of a standard printer with a serial connector, a personal computer, the modem relay output IZ 1, normally activated, for reporting an error, (1A) relay output IZ 2 for reporting alarm of 2. degree (1A) two outputs IZ 3 and IZ 4 (current-limited to 1.4A) two inputs, VH 1 and VH 2, which can also be used to control the outputs IZ 3 and IZ 4 all inputs and outputs can be programmed
Managing and display: 10 keys for central control panel management 18 LEDs for display of common events 128s LED for display of the status of groups (zones) of detectors 128 fields for entering data on groups (zones) of detectors

There is also a number of affordable NJP-400A series central control panels which have been pre-prepared and are available in various configurations. See price list for more information.

NJP-400A base: (cabinet, power supply, UPMO, CPMO, no optional modules) provides room for up to eight optional modules and includes BAT (up to 27 Ah); NJP-401A base: (cabinet, power supply, UPMO, CPMO, no optional modules) provides room for up to 4 optional modules (2 LIMO-AP) and includes BAT (up to 12 Ah), power supply is less powerful;

OP-400A: remote display control unit, complete with a network module, powered by the central control panel.

Optional modules: LIMO-Ap 400/32: line module Apollo (up to 32 addresses)

LIMO-Ap 400/64: line module Apollo (up to 64 addresses)

LIMO-Ap 400/126: line module Apollo (up to 126 addresses)

LIMO-Ko 400: 8 conventional lines

VIMO 400: 8 outputs & 8 inputs

MRMO 400: network module with 2 network connectors.

KOMO: MODBUS communication module (for each central control panel)

GA-400: MODBUS communication gateway (for network central control panels)

MO-01: Ademco ContactID protocol modem for analogue telephone line connection with the alarm reception center.