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  • 5000 series network time server

Wharton 5000 series GPS or GLONASS synchronised Ethernet NTP Time Servers for clock systems and networks

front and rear views Wharton 5000 series Ethernet Time Server

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 and GLONASS navigation system with precision messages received by an optional Wharton 488HS4-GPS or 488HS4-GLONASS 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 slave 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. 5600 network time servers are fitted with dual 10/100Base-t Ethernet interfaces to provide additional system redundancy and expansion capability.

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 or GLONASS.

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

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.

DEMOUT demodulated time code module

The DEMOUT optional module has four logic-level outputs. The module can be user configured to output demodulated IRIG-B, MSF or DCF time codes, a pulse per second or other selectable periodic signals on all four mirrored outputs.

OPTOUT optical interface module

The OPTOUT optional Dual Fiber Optic module has two independently configurable ports that can output demodulated IRIG-B, EBU or Serial ASCII data.

The module has ST Fiber Optic connectors - 62.5/125um (820nm).

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.
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
Petards Cobyt
Philips/Bosch Allegiant LTC8300, 8511C, 8610/00,8719A, 8810/00, 8910/00 series
Philips/Bosch Burle TC8286 & TC8288
Philips/Bosch Divar - application note AN140
Philips/Bosch DVR1
Philips/Bosch LTC2600
Philips/Bosch LTC3990/50
R Racal CD20
Racal Wordsafe
Racal ICR64 & EBCDIC ICR64
Racal Wordnet
S Schauer
Scientific Atlanta / CSI - application note AN111
Serial reference clock for standard NTP distribution - application note AN128
Sony HSR1 / 1P / 2 / 2P - application note AN135
Syac DigiEye
Synectics - application note AN126
Team Simoco
T Tardis
Tecton Darlex - application note AN137
Tecton Drax - application note AN101
Tecton Kramplex - application note AN125
Tecton Rugby Clock Interface
Tower Access Control
U Ultrak Maxpro - Max1000
V Vicon Kollector DVR range
Vicon ViconNet System
Vicon VPS - application note AN100
Vision Factory Cameo - application note AN117
Vision Factory Cameo D1 - application note AN138
Vision Factory Montage - application note AN115
Vision Factory Montage+ - application note AN116
Vision Research Company - Krammer 4 - application note AN102

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 or GLONASS the system accuracy is typically within 5mS of UTC when the clock is synchronised via a Wharton 488.HS4-GPS or 488.HS4-GLONASS 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

5000 series time servers - model range

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
5600 2U high two two seven