Wharton 5000 series GPS synchronised Ethernet NTP Time Servers for clock systems and networks
Wharton 5000 series network time servers provide a complete time synchronisation solution for both standard network applications and also more complex networked systems and installations. You can synchronise your 5000 series time server to the atomic clocks of the GPS navigation system with precision messages received by an optional Wharton 488HS4-GPS time signal receiver.
Description
Overview
- Wharton 5000 series network time servers provide a complete time synchronisation solution for both standard network applications and also more complex networked systems and installations.
- You can synchronise your 5000 series time server to the atomic clocks of the GPS navigation system with precision messages received by an optional Wharton 488HS4-GPS time signal receiver.
- In addition to their use as an Ethernet NTP time server, each 5000 series unit functions as a master clock or time central to control and synchronise digital and analogue clock systems.
- An extensive range of standard and optional signal interfaces are available for the control and time synchronisation of many types of current and legacy control, monitoring and recording equipment.
- Typical applications include air traffic control systems, broadcasting, CCTV security systems, computer and communications network, industrial process control, voice and data recording, surveillance and many types of mechanical and electronic digital and analogue secondary clocks.
- 5000 series network time servers and master clocks are ideal for use in industrial environments and have been certified to a range of international standards. They have London Underground and Network Rail Infrastructure approval (PA05/03968).
Ethernet protocols
Ethernet – time reference synchronisation
NTP/SNTP – The 5000 series Time Server can be time synchronised from a remote NTP time server located on your TCP/IP network
Ethernet – time server options
All models have a 10/100Base-t Ethernet interface to allow the unit to act as an NTP Time Server on a TCP/IP network.
The following network protocols are supported:
- NTP – Network Time Protocol v2, v3 and v4 clients are supported in both unicast and broadcast modes of operation. (RFC1305 & RFC1119).
- SNTP – Simple Network Time Protocol v3 and v4 clients are supported in both unicast and broadcast modes of operation. (RFC2030 & RFC1769).
- TIME protocol (RFC868) is supported in UDP and TCP mode.
- DAYTIME protocol (RFC867) is supported in UDP and TCP mode.
More information on Network Time Protocol
Network Time Protocol (NTP) is one of the oldest Internet protocols in use and was originally designed in 1985 by David L. Mills of the University of Delaware. NTP is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.
NTP is intended to synchronize all participating computers to within a few milliseconds of Coordinated Universal Time (UTC). It uses a modified version of Marzullo’s algorithm to select accurate time servers and is designed to mitigate the effects of variable network latency. NTP can achieve better than one-millisecond accuracy in local area networks under ideal conditions.
– read more on wikipedia
Standard Output Signal Interfaces
10/100Base-t Ethernet interface
All models have a 10/100Base-t Ethernet interface to allow the unit to act as an NTP Time Server on a TCP/IP network.
Multi-function zCode® output ports
All versions have either one or two zCode® output ports for the control of digital and analogue clock systems and similar equipment.
Each zCode® port may be user programmed to provide one of the following coded signal outputs:
- w482® mode supports up to 50 off 4000E or 4000NE series digital clocks and time zone displays.
- Impulse mode – each output is programmable for one second, half-minute or one minute 24V alternate polarity impulses. Each output has a 500mA load rating. (5xx0 units have two zCode® outputs, 5xx1 versions have a single zCode® output.
- Active DCF77 or MSF coded signals.
1PPS High Accuracy Signal
The Master Clock generates a precision one pulse per second output of 100mS duration at RS232 levels. The leading edge of the signal is within 50uS of UTC when locked to GPS.
RS232/RS485 serial port
The RS232/RS485 serial output port is user programmable for 1200-57600 Baud, 7/8 data bits, odd/even/no parity with a data format selected from over 80 predefined serial messages and has a DB9 connector.
The 5000 series network time server can have a maximum of 3 independently configured serial ports using the standard port plus an optional SER23 module.
Additionally, multiple SER23 modules may be fitted to the same unit to provide additional buffered outputs for ports 2 and 3.
Optional output modules – Please contact our sales team if you require any of the below optional output modules and we will be happy to assist.
AFOUT audio frequency interface module
An AFOUT optional output interface module adds two outputs which are individually user programmable to generate either 1Khz amplitude modulated IRIG-B time code for the synchronisation of various voice recording, data logging and distributed control system equipment or EBU (LTC) time code for use in broadcast applications.
RELAY & LVRELAY dual relay contact pairs
Two versions of an optional relay module are available with dual independent relay contact pairs for periodic programmed and synchronised closure, signalling of error conditions and precision-timed control of third-party equipment.
The LVRELAY module has dual contact pairs rated at 110V DC amp.
The RELAY module has dual contacts rated at 230V AC amp.
SER23 Dual RS232/RS485 serial ports
The optional dual-port SER23 module provides two additional RS232/RS485 serial output ports. Each port is user programmable for 1200-57600 Baud, 7/8 data bits, odd/even/no parity with a data format selected from over 80 predefined serial messages and has a DB9 connector.
The 5000 series network time server can have a maximum of 3 independently configured serial ports using the standard port plus an optional SER23 module.
Additionally, multiple SER23 modules may be fitted to the same unit to provide additional buffered outputs for ports 2 and 3.
Serial messages for legacy Equipment
- You can configure each of the three available RS232+RS485 serial interface ports (ports 2 and 3 require the SER23 option module) for many different pre-programmed data message formats for specific CCTV, security and embedded equipment time synchronisation.
- Non-specific message formats are user selectable for transmission every second, every minute, every five minutes, every hour, every day or on request.
- You can set the data rate and format of non-specific messages for 1200, 2400, 4800, 9600 or 19200 baud, 7 or 8 data bits and even, odd or no parity.
- The following table lists the standard serial message formats pre-programmed in addition to four specific Wharton formats. Where detailed, please refer to the appropriate application note. Messages which have a pre-defined data rate, message format and repetition rate have pre-set parameters.
Serial messages for legacy Equipment
You can configure each of the three available RS232+RS485 serial interface ports (ports 2 and 3 require the SER23 option module) for many different pre-programmed data message formats for specific CCTV, security and embedded equipment time synchronisation.
Non-specific message formats are user selectable for transmission every second, every minute, every five minutes, every hour, every day or on request.
You can set the data rate and format of non-specific messages for 1200, 2400, 4800, 9600 or 19200 baud, 7 or 8 data bits and even, odd or no parity.
The following table lists the standard serial message formats pre-programmed in addition to four specific Wharton formats. Where detailed, please refer to the appropriate application note. Messages which have a pre-defined data rate, message format and repetition rate have pre-set parameters.
| A |
| Adder Digital Technology |
| ADT Site Guard – application note AN132 |
| AIT Comfile |
| Ascom NIS2000 |
| ASC Telecom DL2 – application note AN129 |
| ASC Telecom Marathon – application note AN136 |
| ATIS MDS2000 |
| AudioSoft |
| B |
| Baxall DTL 960 – application note AN141 |
| BAXNET / Vista – application note AN139 |
| C |
| Cartner |
| Coe – application note AN120 |
| D |
| Dedicated Micros Digital Sprite, Sprite2, BX2 – application note AN127 |
| Dedicated Micros Uniplex Series I/II |
| G |
| Geutebruck MultiScope |
| Geutebruck TDT-10 / VicroSoft / AMC |
| GPZDA NMEA Message |
| Grosvenor Technology Janus – application note AN132 |
| Grundig / Plettac Vaz300 |
| H |
| Harmony – application note AN132 |
| L |
| Loronix / Verint – application note AN132 |
| LUL (Standard / Northern Line formats) |
| M |
| Macq Electronic SA |
| Maxpro |
| Meyertech Zoneview – application note AN123 |
| Mitsubishi HS-S5600 – application note AN112 |
| Mitsubishi HS-S8300 – application note AN133 |
| Moser-Baer IF482 |
| N |
| NATS Link Protocol |
| Neal – application note AN124 |
| NetClock2 – application note AN128 |
| Norbain Vista Columbus |
| P |
| Panasonic AG6040 / 6730 / 6740 / 6760 – application note AN113 |
| Panasonic WJHD500 |
| Panasonic WJSX850 |
Environment, Accuracy and Standards
Environment
- Operating temperature: 0-50° C
- Relative Humidity:0% to 90% (non-condensing)
- Altitude: 0 to 3,000m
- MTBF: >100,000 hours
- Power supply: Internal PSU 110-240V ac. 50/60Hz.
- DUALAC dual redundant 110-240V 50/60Hz mains AC power supply option.
- 24V dc and 48V dc options are available on request.
- Power consumption < 100VA
- Internal battery backup maintains the time count for >1 year during a period of mains failure.
Timing accuracy
- 5000 series network time servers have a standard High-quality integrated TCXO to provide an unsynchronised accuracy of <0.1 sec/day @ 0-45°C.
- Locked to GPS the system accuracy is typically within 5mS of UTC when the clock is synchronised via a Wharton 488.HS4-GPS receiver.
Electromagnetic Compatibility, Safety and RoHS2 Directives
5000 series network time servers, used in accordance with our recommendations, comply with the European Community Electromagnetic Compatibility Directive 2004/108/EC, Low Voltage Directive 2006/95/EC and RoHS2 Directive 2011/65/EU and conform to the following standards:
- EN 50121-4-2006 – Full London Underground and Network Rail Infrastructure approval (PA05/03968)
- EN 61000-6-2:2005
- EN 61000-6-4:2007+A1:2011
- EN 55022:2010
- EN55024:2010
- EN 60950-1:2006
| Model |
Case Type 19″ rack |
10/100Base-t Network Interfaces |
zCode® Digital Code or Pulse Output |
Option Module Positions |
| 5200 |
1U high |
one |
two |
four |
| 5201 |
1U high |
one |
one |
four |
| 5400 |
2U high |
one |
two |
seven |
