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Master clocks

Nineteen-inch clock networks are installed in large complexes (especially hospitals). They are always manufactured according to the customer’s requirements and consist of a master clock in 19-inch modular system technology and also one or several intelligent line modules and other components. Each slave line output is able to control up to 100 slave clocks.

Master clocks are one of Schauer’s most important products. Depending on the project, they’re made to control analogue and digital slave clocks or switching outputs and are synchronised using DCF or GPS. They’re found in schools, hospitals, airports, train stations or public transport facilities and other buildings and structures.

Products

HUR5201NET
19"
Downloads: Product sheet   Details

  • This master clock provides the time synchronisation solution for complete systems of equipment including computer networks, CCTV security, voice recording, industrial process control, CCC and many other applications requiring accurate time synchronisation.
  • Standard available with GPS, MSF, DCF and NTP synchronisation inputs
  • This master clock series is fitted with a 10/100Base-T Ethernet interface to allow the unit to act as NTP time server on a TCP/IP network
  • All master clocks are supplied as standard with one serial RS232 / RS485 serial ASCII Time and Date output
  • The master clock has one new zCode digital and analogue clock output
  • The output can be user programmed to transmit w482 time code for digital clock of series 400, Active MSF, Active DCF or 24 V Alternate polarity impulses as required by the connected digital and analogue clocks
  • Features and functions:
  • High visibility 6 digit display with 6m viewing distance
  • Display and time code output messages can be referenced to UTC or 'Local' time
  • 'Set Once' local time zone setup, automatically calculating future time zone changes for local time zone
  • Timing accuracy:
  • Standard integrated TCXO module (temperature stabilised oscillator)
  • Unsynchronised operation: 0.1 s/day at 0...45 ºC
  • With optional TCXOHQ module fitted: Unsynchronised operation 0.01 s/day at 0...45 ºC
  • Locked to MSF or DCF: within 30 ms of UTC
  • Locked to GPS: within 50 µs of UTC
  • Standard Synchronisation Interfaces:
  • Standard Synchronisation interface allows synchronisation from external GPS-ANT1HS receiver or R4-DCF radio receiver
  • RS232 Serial input, allowing time synchronisation from various standard serial time codes
  • NTP/SNTP synchronisation from remote NTP time server located on TCP/IP network
  • Standard Output Interfaces:
  • One zCode digital and analogue clock synchronisation output
  • The output is programmable for w482, Active MSF, Active DCF and 24V Alternate Polarity Impulses
  • Supports up to 50 of series 400 digital clocks and time zone displays in w482 time code mode
  • In 24V alternate polarity impulse mode, the output is programmable for one second, half minute or one minute impulses
  • The impulse output is rated for 500mA load
  • RS232/RS485 serial interface:
  • 300-19200 Baud, 7/8 data bits, odd/even/no parity
  • User selectable output from over 80 predefined data formats for specific CCTV and embedded equipment
  • High accuracy 1 pulse per second output at RS232 levels
  • 10/100Base-T Ethernet interface:
  • Master Clock is supplied fitted with a 10/100Base-T Ethernet interface which allows them to act as a time server on a TCP/IP network
  • The network interface supports the following protocols:
  • NTP: Network Time Protocol (NTP) v2, v3 and v4 clients are supported in both unicast and broadcast modes of operation (RFC1305 & RFC1119)
  • SNTP: Simple Network Time Protocol (SNTP) v3 and v4 clients are supported in both unicast and broadcast modes of operation (RFC2030 & RFC1769)
  • TIME: TIME protocol (RFC868) is supported in UDP and TCP mode
  • DAYTIME: DAYTIME protocol (RFC867) is support in UDP and TCP mode
  • Options:
  • GPS-ANT1HS GPS synchronisation system
  • R4-DCF DCF77 radio synchronisation system

Technical data:

  • Power supply: 110...240 V AC, 50/60 Hz
  • Power consumption: < 0.4 A @ 230 V AC
  • Battery backup: >1 year (The battery backup maintains the internal time count during periods of mains failure)
  • Case: 1u high 19" rack wide 483 mm x deep 185 mm x high 44 mm
  • Weight: 2.8 kg
  • Operating temperature: 0 ... 50 ºC
  • Relative Humidity: 0 % to 90 % (non-condensing)
  • Altitude: 0 to 3.000 m
  • MTBF: > 50,000 hours
Product enquiry via e-mail

HUR5200NET-IMP
19"
Downloads: Product sheet   Details

  • This master clock provides the time synchronisation solution for complete systems of equipment including computer networks, CCTV security, voice recording, industrial process control, CCC and many other applications requiring accurate time synchronisation.
  • Standard available with GPS, MSF, DCF and NTP synchronisation inputs
  • This master clock series is fitted with a 10/100Base-T Ethernet interface to allow the unit to act as NTP time server on a TCP/IP network
  • All master clocks are supplied as standard with one serial RS232 / RS485 serial ASCII Time and Date output
  • The master clock has two new zCode digital and analogue clock outputs
  • Each output can be user programmed to transmit w482 time code for digital clock of series 400, Active MSF, Active DCF or 24 V Alternate polarity impulses as required by the connected digital and analogue clocks
  • Features and functions:
  • High visibility 6 digit display with 6m viewing distance
  • Display and time code output messages can be referenced to UTC or 'Local' time
  • 'Set Once' local time zone setup, automatically calculating future time zone changes for local time zone
  • Timing accuracy:
  • Standard integrated TCXO module (temperature stabilised oscillator)
  • Unsynchronised operation: 0.1 s/day at 0...45 ºC
  • With optional TCXOHQ module fitted: Unsynchronised operation 0.01 s/day at 0...45 ºC
  • Locked to MSF or DCF: within 30 ms of UTC
  • Locked to GPS: within 50 µs of UTC
  • Standard Synchronisation Interfaces:
  • Standard Synchronisation interface allows synchronisation from external GPS-ANT1HS receiver or R4-DCF radio receiver
  • RS232 Serial input, allowing time synchronisation from various standard serial time codes
  • NTP/SNTP synchronisation from remote NTP time server located on TCP/IP network
  • Standard Output Interfaces:
  • Two zCode digital and analogue clock synchronisation outputs
  • Each output programmable for w482, Active MSF, Active DCF and 24V Alternate Polarity Impulses
  • Supports up to 100 of series 400 digital clocks and time zone displays in w482 time code mode
  • In 24V alternate polarity impulse mode, each output programmable for one second, half minute or one minute impulses
  • Each impulse output rated for 500mA load
  • RS232/RS485 serial interface:
  • 300-19200 Baud, 7/8 data bits, odd/even/no parity
  • User selectable output from over 80 predefined data formats for specific CCTV and embedded equipment
  • High accuracy 1 pulse per second output at RS232 levels
  • 10/100Base-T Ethernet interface:
  • Master Clock is supplied fitted with a 10/100Base-T Ethernet interface which allows them to act as a time server on a TCP/IP network
  • The network interface supports the following protocols:
  • NTP: Network Time Protocol (NTP) v2, v3 and v4 clients are supported in both unicast and broadcast modes of operation (RFC1305 & RFC1119)
  • SNTP: Simple Network Time Protocol (SNTP) v3 and v4 clients are supported in both unicast and broadcast modes of operation (RFC2030 & RFC1769)
  • TIME: TIME protocol (RFC868) is supported in UDP and TCP mode
  • DAYTIME: DAYTIME protocol (RFC867) is support in UDP and TCP mode

Options:
GPS-ANT1HS: GPS synchronisation system
R4-DCF: DCF77 radio synchronisation system


Technical data:

  • Power supply: 110...240 V AC, 50/60 Hz
  • Power consumption: < 0.4 A @ 230 V AC
  • Battery backup: >1 year (The battery backup maintains the internal time count during periods of mains failure)
  • Case: 1u high 19" rack wide 483 mm x deep 185 mm x high 44 mm
  • Weight: 2.8 kg
  • Operating temperature: 0 ... 50 ºC
  • Relative Humidity: 0 % to 90 % (non-condensing)
  • Altitude: 0 to 3.000 m
  • MTBF: > 50,000 hours
Product enquiry via e-mail

MPU-R-TC208-NET
19"
Downloads: Product sheet   Details

19“ Master clock with Ethernet Interface, modern operation via Network

  • Two independent slave clock lines
  • Connection of up to 2x 50 impulse controlled or up to 2x 50 self-correcting Time Code slave clocks (max. output current 0.5 A each line)
  • Polarised 24 V DC outputs for minutes-, ½ minutes - or seconds impulses respectively time code for operation of self-correcting and self-setting slave clocks
  • Mixed operation of slave clocks and self-correcting clocks possible
  • Impulse length adjustable
  • Impulse to break rate programmable
  • Automatic adjustment of slave clocks after mains failure
  • Electronic impulse memory for min. 5 years
  • Automatic summer-/winter daylight-saving time programmable
  • Everlasting calendar
  • Automatic free programmable holiday calendar with or without holidays depending on Easter
  • Electronic short-circuit protection
  • Electronic low voltage cut-off (18 V)
  • Multi-functional display (LCD) with two lines (20 characters per line, digit height 6 mm)
  • Indication of weekday, hours, minutes, seconds, date, summer-/winter time and DCF reception
  • Synchronisation through:
    + DCF-77 (for time and summer-/winter time changes)
    + GPS system (for time and summer-/winter time changes)
    + 24 V DC polarised minute impulses (master/slave operation)
  • Text message on display in case of missing DCF/GPS synchronisation after adjustable time
  • Error text message in case of short-circuit on a slave line
  • Accuracy ±0.1 s/day at 25 °C (without DCF synchronisation)

Signalling device

  • Eight potential free switchover contacts in three independent function Groups
  • 99 day programs with max. 99 program steps each
  • Period table with 99 program lines
  • Copy function for day programs
  • Switching times per second
  • On/Off- and timer-functions with 1 s … 59 min. run time
  • 32 different timer lengths programmable
  • Checking of programming via Display
  • Single-, partial- and complete deletion of programs
  • Program memory for 99 day programs with totally 9801 (=99x99) program steps
  • Alarm relay function: The relay switches off in case of an alarm condition (short-circuit on slave line or missing DCF/GPS synchronisation).
  • Relay function depending on summer-/winter time status: The relay is only active either at current summer time or winter time.
  • Contact rating 250 V / 4 A (ohmic load)

NTP-Interface

  • The master clock is fitted with a 10/100 Base-T Ethernet Interface, which enables to act as NTP time server in a TCP/IP v4 network (RJ45 connection)
  • NTP (Network Time Protocol) protocol for synchronisation of computers in a PC network = international standard for PC time transmission in Internet
  • NTP is also used in smaller networks (LAN) for synchronisation of PC server and PC work stations
  • Alarm messages per e-mail at NTP errors possible
  • Input (RJ45) for use of master clock as net client in a TCP/IP Network
  • This interface supports following protocols:
    NTP and SNTP:
    + Network Time Protocol (NTP) v2, v3 and v4 in Unicast, Broadcast and Multicast
    + Simple Network Time Protocol (SNTP) v3 and v4 in Unicast, Broadcast and Multicast
  • Network accuracy:
    + Synchronisation typically within 10ms…100ms of MPU-TC-NET time base,
    depending on network delay and jitter (NTP)
  • Comfortable remote control of complete master clock via web interface:
    + no additional software possible, handling via standard web browser possible
  • Export of master clock configuration as file
    + Re-establishment at any time
    + Selection of data options which shall be imported
  • Alarm message by e-mail
    + at synchronisation failure
    + at short-circuit of slave lines
    + Supervision of a 24VDC alarm Input
  • Software-Update if necessary
  • Remote maintenance and -programming

Technical specifications:

  • Power supply: 110…240 V AC, 50/60 Hz
  • Current consumption: < 0.4 A @ 230 V AC
  • Data storage: > 1 year (the battery stores data during mains failure)
  • Case: 19” rack, 1 HE
  • Width 483 mm x Depth 245 mm x Height 44 mm
  • Weight: approx. 2 kg
  • Operating temperature: 0 … 50 ºC
  • Rel. humidity: 0 % to 90 % (non-condensing)

Options:

  • DCF-ANT02: DCF-77 radio synchronisation antenna
  • GPS-ANT8: GPS reception antenna with DCF Output
  • RS232/RS485: Serial output
Product enquiry via e-mail

UZ-BMC-I104/19
19"
Downloads: Product sheet  Block Diagram Details

  • 24 V DC supply voltage
  • 24 V DC output voltage
  • 0.4 A line current
  • Connection of up to 40 slave clocks or self-correcting time code slave clocks (analogue and digital ones)
  • Asynchronous balance mode of pulse driven clocks and time code driven ones on the same line possible
  • Impulse/Break rate programmable
  • Line parameter adjustable:
  • Line type: minutes-, ½ minutes- and second impulse line or time code line for self-correcting slave clocks (analogue and digital ones)
  • Movement: 12 hours, 24 hours, digital weekday- and date movements
  • Electronic short circuit protection
  • Automatic adjustment of slave clocks after mains failure or short circuit of the line through electronic impulse memory for min. 5 years
  • Pre-programmed or automatic change of daylight saving times
  • Two-lined digital crystal display (LCD) with digit height of 4.35 mm
  • Standard display shows master clock time in hours, minutes and seconds, daylight saving time, day, month, year, synchronisation reception, day of week, line stop, short circuit of the line output, status of relays
  • Menu guided programming
  • LED display for line signal, relay status and faults
  • RS 485 – bus for possible module amplification
  • Synchronisation possible through DCF-77 antenna or GPS receiving system
  • DCF quality indication in menu, for display of last synchronisation date
  • Accuracy +/- 0.1 seconds per day (without external synchronisation)
  • Power consumption: closed current <70 mA without relay and external load


Signal outputs

  • Four independent potential free switching outputs
  • Contact rating max. 1 A, 250 V AC
  • Relays manual adjustable
  • Free programming day and week programs
  • Programmable holiday calendar
  • Switching commands ON/OFF and TIMER (1-99 sec. adjustable) for every second programmable and manually
  • Each output programmable as alarm contact
    Fault 1: DCF synchronisation defective (adjustable between 0...99 hours) or
    Fault 2: Line short-circuit
    Alarm message resettable automatically or manually

Mounting

  • 19“ case: 3 HE / 21 TE
  • Front cover: Aluminium nature anodised
  • Last: DIN 41612 type M (24+7)

Options:

  • UZ-BMC-LINIE2/19: 19“ line module, 24 VDC supply voltage, two slave clock lines 1 A each, 21 TE
  • UZ-BMC-NGxx: 19“ power supply unit 230 V / 24 V
    (power and dimensions depend on system configuration)
  • UZ-BMC-NET: 19" BMC network module, 8TE, 24VDC, NTP Server- or NTP Client function, web server for remote control and configuration, alarm message per e-mail
  • UZ-ET: 19“ rack
  • DCF-ANT02: DCF-77 radio synchronisation antenna
  • GPS-ANT8: GPS synchronisation antenna with DCF output

Product enquiry via e-mail

UZ-BMC-LINIE2/19
19"
Downloads: Product sheet  Block Diagram Details

  •  Two independent slave clock lines
  • 1 A output current for each line
  • 24 V DC operating voltage
  • 24 V DC output voltage
  • Connection of 100 impulse controlled slave clocks time code controlled slave clocks per line
  • Impulse-pause-rate programmable


Adjustable parameters:

  • Type of slave line: minute- or second line or time code line for self-correcting clocks
  • Movement: 12 hours, 24 hours, weekday or date wise


  • Electronic short circuit protection
  • Automatic adjustment of slave clock lines after power failure, short circuit and open circuit by electronic pulse storage
  • Pre-programmable or automatic summer/winter time change
  • Digital LCD display with two rows
  • Programming with menu via digital display


Synchronisation by:

  • DCF-77 signal (for time and summer/winter time change)
  • GPS system (for time and summer/winter time change)
  • line signal (minutes, ó-minutes or seconds)
  • Wire based DCF-77 signal
  • Accuracy +/- 0,1 sec./day (unless synchronised externally)

LED display per line for:

  • Even or uneven minutes, ó-minutes or seconds
  • Status of electronical pulse storage
  • Stop of line output
  • Short circuit of line output
  • Open circuit of line output
  • Selftest status after reset
  • Current consumption: standby current <50 mA + load current

Mounting:

  • 19“ case: 3 HE / 21 TE
  • Front cover: Aluminium nature anodised
  • Last: DIN41612 type D

 

 

Product enquiry via e-mail

UZ-BMC-NG 100
19"
Downloads: Product sheet   Details

Mounting

  • 19“ Rack: 3 HE / 14 TE
  • Front sided automatic fuse P10 2A

Technical data:

  • Power supply: 85…264 V AC
  • Output voltage: 24 V DC
  • Output power: 100 W
  • Output current: 3.8 A
  • Voltage surge protection: 115 %...135 %
Product enquiry via e-mail

UZ-BMC-NG 60
19"
Downloads: Product sheet   Details


Technical data:

  • Power supply: 85…264 V AC
  • Output voltage: 24 V DC
  • Output power: 60 W
  • Output current: 2.5 A
  • Voltage surge protection: 115 %...135 %


Mounting:

  • 19“ Rack: 3 HE / 14 TE
  • Front sided automatic fuse P10 2A

 

 

Product enquiry via e-mail

UZ-ET
19"
Downloads: Product sheet   Details

  • Internal devices completely wired
  • With terminal
  • Ready for connection and operation
  • 160 mm bearing
  • 31-core strip type M


Mounting

  • 19“ slot: 84 TE / 3 HE

Product enquiry via e-mail

UZ-BMC-NET
19"
Downloads: Product sheet   Details


Master clock acts as NTP time server in TCP/IP network
+ NTP in Broadcast mode: Master clock sends time to all network clients, which supports Broadcast mode
+ NTP in Multicast mode: Master clock sends time to all Multicast group participants in network (lesser network load than at Broadcast)
+ NTP in Unicast mode: Network client receives time through request via adjusted IP address of server

Master clock is NTP client in TCP/IP network automatic synchronisation of the 19" BMC master clock via bus at every second
Control of all bus modules (19" master clock and line modules)
Time interval of server request in synchronised (1 to 9999 h) and unsynchronised status (1 to 9999 s) adjustable

Integrated web server for remote control of BMC systems via internet browser (http)
Integrated web server for configuration of module parameters via internet browser (http)
Adjustment of all master clock parameters via PC, e.g. also programming of switching programs
Ethernet RJ45 connector for TCP/IP network (100baseT Ethernet)
Schauer RS485 bus for data communication to BMC systems
Alarm input with optocoupler
Bus supervision and alarm signalisation via e-mail (SMTP) at bus failure, synchronisation, short-circuit on BMC slave line and short-circuit on slave lines of external line module
Optional supervision of alarm input: Does not apply 24 V DC on input, an alarm message by e-mail will be sent
LED's on front cover (POWER, LAN-Activity, Time Code, DCF)

Technical data:
Power supply: 24 V DC
Power consumption: 1 Watt type
Ambient temperature: -25 °C bis +60 °C
Relative humidity: max. 85% (non-condensing)

Mounting: 19" rack: 3 HE / 8 TE
Front cover: Aluminium nature anodised
Male multipoint connector: DIN 41612 type D

Product enquiry via e-mail

R4-DCF
Accessories
Downloads: Product sheet   Details

  •  The R4-DCF radio time synchronisation receiver enables the time synchronisation of series 400 clocks & calendar clocks, series 47x time zone clocks and series HUx4850/4860 master clocks to accurate DCF radio time code signals.
  • DCF transmits on 77.5 kHz from Mainflingen, near Frankfurt/Main in Germany with signals derived from the Physikalisch-Technische Bundesanstalt, Lab. Zeiteinheit.
  • In theory the signals are receivable at a range in excess of 1000 km from the transmitter, subject to the effect of a wide range of variables such as time of day, atmospheric conditions and the degree of screening between the transmitter and receiver. In practice increasing levels of noise pollution, particularly from mobile radio systems, result in a reduction of reception reliability and we now recommend GPS time synchronisation for time and reliability critical applications.
  • The R4-DCF receiver is a high performance unit with dual crystal filters and dual ferrite antennas to provide omni-directional capability.

 

How radio time synchronisation works

The DCF carrier is interrupted every second to encode time and date information with a full time, date and status message being transmitted every minute. The length of the individual carrier breaks determine the value of the coded information and the time of transmission within each minute determines the identity of each bit.

In addition to basic time and date information a 'second level' data set is transmitted during the last few seconds of each minute to provide warning of impending seasonal time changes, summer/winter time status together with parity bits which are used as part of the validation process for each message. At the start of each minute a unique bit pattern is transmitted called the 'minute identifier'.

Due to the possibility of transient interference or reception conditions causing corruption of the transmitted code signal or a total signal loss, the clock or master clocks use the DCF transmission as an update reference comparison rather than a continuous source of time information.


Technical specifications:

 

  • Connection cable: The R4-DCF radio receiver is supplied with a 5 m long unscreened cable as standard. The cable length may be extended to 10 m using unscreened cable, RS 367-943 - 22 AWG or equivalent. In areas of high electrical noise a screened twisted pair should be used. The cable screen should be grounded at the HUx4860 end only.
  • Maximum cable length: Cable length may be extended to 200 m using a screened twisted pair cable, RS 368-340 - 22 AWG or equivalent. (UL style 2092, Alpha 2401)
  • Dimensions (WxHxD): 160 x 80 x 55 mm
  • Housing: The unit is housed in robust plastic case suitable for protected external mounting.
  • Protection class: IP65
  • Ambient temperature: -20 °C bis +50 °C

Product enquiry via e-mail