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Time synchronizing device
  • Synchronization service via Ethernet with NTP protocol or by GPS
  • Power supply by means of PoE Plus technology
  • Integrated Web server
  • Compatible with pulsed clocks


Why choose MCK?

High precision for synchronizing the entire system

The clocks can be configured remotely

Notifications of alerts by email

Precision is everything

The accuracy of time information, already optimized thanks to a precise internal clock, can be further increased by synchronizing MCK 2290, or by means of a Master Clock using the NTP protocol.

As an alternative to the use of the NTP protocol, the GPS 2290/NTP antenna can be placed outside the building and connected to the MCK by means of an Ethernet connection. This device is capable of transmitting precise time information, ensured the accuracy of the GPS system.

So much from a network

The Ethernet interface with which the MCK is equipped makes it possible to synchronize multiple devices connected to the network: this is done through the NTP protocol. Besides the classics system architecture in which a single MCK synchronizes all of the connected peripheral devices, it is also possible to create a system with a master-slave mode using an MCK master and multiple connected MCK’s in slave mode: this is a solution guaranteed by the availability of the NTP protocol both as a server and as a client.

The importance of simplicity

Thanks to Power over Ethernet (PoE) technology, available on certain models, a low-voltage power supply can be provided through an Ethernet cable. The DHCP server protocol present within the MCK allows for a simple and quick Plug&Play installation which automates the initial configuration of all of Solari di Udine’s NTP products.

It lets you know if anything happens

With the SNMP protocol it is possible to have real-time monitoring of the functioning state of the entire system. Specifically, it is possible to have notification emails sent, should any anomalies occur.

The presence of multiple digital outputs, which can be configured by the user, allows for time-based alerts.


New is great but… the old can remain

The MCK 2290/NTP master clocks are compatible and can be integrated within traditional clock systems as well. Equipped with pulsed lines and a serial line, they can keep the time synchronized for all older clocks: this makes it possible for these master clocks to be used within older or hybrid systems as well.

To synchronize serial clocks, an RS485 multipoint serial line is available.


Integrated Web server for anything you may need

The integrated Web server which can be reached by Ethernet makes it possible to configure, monitor and control the various features of the master clock itself, as well as of all the other NTP clocks connected to it.

WebMCK: what it is

WebMCK is a software-based application resident on the various MCK models. It handles configuration and monitoring functions of the clock system and it offers considerable advantages in terms of ease of use and reduced software maintenance.

WebMCK: the central server

The main purpose of the MCK 2290/NTP is to manage and synchronize all of the different devices connected to it.

WebMCK can also pilot devices of an older generation, handling up to four different pulsed lines (even with different and independent parameters for each line) and one RS232/RS485 type serial line.

For more recent devices, equipped with an Ethernet interface and that to use the NTP/SNTP protocol, the MCK 2290/NTP is seen as an NTP/SNTP server. In particular, for Solari di Udine NTP clocks, the software solution makes it possible to centralize the configuration and monitoring of the system.

In the configuration section, it is also possible to logically group clocks into one or more groups so as to differentiate applied parameter configurations regarding the time to be displayed. WebMCK then automatically sends these parameters and verifies that they have been applied correctly.

WebMCK: synchronizing

A Master Clock can be synchronized using a GPS receiver or by one or more NTP servers: WebMCK allows the choice of which type of source to use (even both) and the identification parameters to be applied (for example, the IP address of the NTP server).

An additional service offered by WebMCK is the monitoring of the current synchronization state.


WebMCK: monitoring

System monitoring consist in a constant analysis of the functioning state of the MCK 2290/NTP and of all connected peripheral devices. A constantly active process cyclically queries the peripheral devices and therefore verifies, not just their state, but also that their configuration is correct.

Thanks to the implementation of the SNTP and SNMP protocols, should an error occur, such as the loss of synchronization, it is possible to send an email or SNMP trap.

The WebMCK application also manages an event log in which activities are registered and any problems recorded.


WebMCK: simplified installation

The mechanism that enhances and simplifies the configuration phase is called DHCP Solari: this allows the MCK 2290/NTP to offer IP addresses to those devices that request it, and therefore reduces the number of steps necessary for deploying a new clock.

MCK 2290/NTP also provides an updating mechanism for its software and makes it easier to update the software of the NTP clocks by Solari di Udine, since it is possible to update all clocks of the same type (e.g., MOSAICO) with a single action.


Microprocessor RISC 32 bit (ARM)

Display specifications

16x2 alfanumeric LCD

Membrane keyboard

10 number keys, OK key, Clear key, 4 arrows

Ethernet Interface

10/100 Mbps

Serial Lines

1 RS232/RS485 serial line

Pulse Lines

1 pulse line - 24VDC 600mA, unipolar and bipolar type (MCK 2290/NTP without I/O expansion)

4 pulse lines - 24VDC 4A total maximum current, 1,5A max per line, unipolar and bipolar type (MCK 2290/NTP EXP)

Digital Input

1 bipolar: 8÷30VDC 11mA max

Digital Output

3 without polarity: 60VDC, 120mA (MCK 2290/NTP without I/O expansion)

6 without polarity: Relay Contact, 240Vac 1,5° (MCK 2290/NTP EXP)

Communication protocols


GPS interface with external antenna


Internal clock precision

+/-2ppm (with backup battery)


ABS self estinguishing, front in self estinguishing Polycarbonate (MCK 2290/NTP POE)

Aluzinc coded metal (MCK 2290/NTP RACK, MCK 2290/NTP RACK EXP, MCK 2290/NTP WALL EXP)


Table (MCK 2290/NTP DESK)

Wall mounting with included mounting rack (MCK 2290/NTP WALL)

Rack 19” (MCK 2290/NTP RACK)

Acoustic signal


Power supply

Standard PoE Plus +48VDC (MCK 2290/NTP POE)

115/230Vac, 50-60Hz 0,38/0,23Amax (MCK 2290/NTP RACK)

115/230Vac, 50-60Hz 1,30/0,68Amax (MCK 2290/NTP RACK EXP, MCK 2290/NTP WALL EXP)

Power consumption with maximum load on the pulse line and other connected devices

32W 48VDC 0,67° (MCK 2290/NTP POE, MCK 2290/NTP RACK)

150W Max 115/220Vac (MCK 2290/NTP RACK EXP, MCK 2290/NTP WALL EXP)

Backup battery for basic functions

4 12V 2AH lead batteries (MCK 2290/NTP RACK, MCK 2290/NTP RACK EXP and WALL EXP)

Backup battery for all functions

Over 10 hours without energy reserve, only NTP service (MCK 2290/NTP RACK)

Over 4 hours, only NTP service (MCK 2290/NTP RACK EXP and WALL EXP)

Backup battery for internal clock

Rechargeable 90mAH lithium battery, works for more than 30 days

Auxiliary 12VDC voltage

Non-stabilized, decoupled, 400mA

Operating temperature

0°C  +40°C (MCK 2290/NTP POE)

0°C  +50°C (MCK 2290/NTP RACK, MCK 2290/NTP RACK EXP and WALL EXP)

Relative humidity

Up to 85% without condensation


178x170x120mm (WxHxD) - MCK 2290/NTP POE

430x65,5x411mm (WxHxD) - MCK 2290/NTP RACK

430x65,5x440mm (WxHxD) - MCK 2290/NTP RACK EXP and WALL EXP


660g (MCK 2290/NTP POE)


Other characteristics

Internal working state Watch-Dog feature.

Antitheft Microswitch (MCK 2290/NTP POE)

MCK is available in three main models:

  • MCK 2290/NTP WALL and DESK (POE), wall and table version with one pulse line and three digital outputs
  • MCK 2290/NTP RACK, 19” rack version with one pulse line and three digital outputs
  • MCK 2290/NTP RACK EXP and WALL EXP, 19” rack and wall version with four pulse lines and six digital outputs







Wall Version



Table Version



Rack Version



Rack version with I/O expansion



Wall version with I/O expansion



Cod. 55010555
Master clock with 1 impulse line and 3 digital outputs. WALL version. Ideal as a simple and non-cumbersome solution.


Cod. 55010547
Master clock with 1 impulse line and 3 digital outputs. TABLE version. Ideal as a simple and versatile solution.


Cod. 55010598
Master clock with 1 impulse line and 3 digital outputs. RACK version. Ideal for mounting on a 19” rack.


Cod. 55010636
Master clock with 4 IMPULSE LINES and 6 DIGITAL OUTPUTS. RACK version. Ideal for mounting on a 19” rack and managing a more complex clock system.


Cod. 55010628
Master clock with 4 IMPULSE LINES and 6 DIGITAL OUTPUTS. WALL version. Ideal as a non-cumbersome solution to manage a more complex clock system.
UBI Banca The time in each branch, the same time for all branches.

An important thinking group needs to provide its customers with precise and immediate information regarding time. The CDL C60 NTP, coupled with the MCK 2290/NTP Master Clock, represents the ideal solution both from a functional point of view as well as an aesthetic point of view.

United Hospitals of Bergamo The Master Clock synchronizes all of the various devices (clocks, terminals, ticket dispensing totems, etc.) present within the new hospital structure.
Milano Centrale Train Station A Master Clock for synchronizing the entire system.

Several clocks are installed within the train station, both standard models, as well as models that are integrated within the information displays consulted by the end-users. All clocks are synchronized thanks to a Master Clock.

Venice Marco Polo Airport All devices within the airport are synchronized using our Master Clock.
Rome Trade Fair Using a Master Clock guarantees a precise and synchronized time in all areas, but not only.

All MOSAICOsei and QUASAR clocks, present within the exhibit areas as well as inside administrative offices, are synchronized by means of a pilot station. The station is equipped with programmable actuators for turning on lights, activating sirens, etc., and it is constantly synchronized by GPS signal using a specific antenna.

Riyadh Metro Master Clocks installed as servers and as slaves.

Inside the Control Center of the University underground, a Master Clock (MCK 2290/NTP RACK) is installed and acts as a Master Clock “server” that synchronizes 14 Master Clock “slaves” by means of an ethernet network and the NTP protocol. These “slaves” are of the same type and are installed within the various stations that make up the underground network.

The main Master Clock is connected to an antenna for receiving a GPS signal for time synchronization and therefore guarantees high precision.

The Master Clock server, besides synchronizing the other devices within the control center, also synchronizes the MCK slaves, which in turn manage the devices of the stations where they are installed.

The above system architecture offers a network redundancy since it guarantees that even in the absence of connectivity with the control center, the clocks of the various stations are perfectly synchronized and this therefore ensures continuity of service for the end-user, in all circumstances: this is possible thanks to the Master Clocks installed locally with the purpose of managing the devices present within each station.



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