TimeLord-Net - Reference-locked Master Clock System with 10BaseT Ethernet Interface
The TimeLord-Net Master Time Source provides a complete precision time synchronisation solution for computer networks, CCTV security, C3, digital clock systems, industrial process control, voice recording and many other applications requiring accurate time synchronisation of equipment.
The following data interfaces are provided as standard:
- RS232 and RS422/RS485 outputs which can transmit one of more than 20 different serial ASCII time and date telegrams at user selected formats and intervals.
- An RS232 precision 1pps 'on-time' signal.
- A programmable changeover relay contact pair providing periodic signals or status information.
- A 482 multi-zone time code output which can control up to fifty V-400A series digital clocks or time zone displays showing time and date in up to 15 different world-wide time zones.
- An Ethernet RJ45 network interface.
An optional multi standard -IRIG output is available as is an EBU (LTC) timecode output. The TimeLord-Net Time Source may be used in stand-alone mode, deriving its timekeeping from its accurate, high stability, internal crystal oscillator or, for ultimate precision, synchronised via optional receivers to GPS satellite transmitters or DCF and MSF terrestrial radio time code transmitters.
The Timelord-Net Time Source is housed in a 1U high case and suitable for 19" rack mounting applications.
The bright red LED display of time or date has adjustable brightness and can be read at distances of up to 7m.
Timebase
The internal, high stability, quartz crystal oscillator typically provides an accuracy of ±0.1 seconds per day @ 20-25°C (which is approximately ±2 seconds per month).
When synchronised with the GPS satellite network via the optional 488.00C GPS receiver subsystem the RS232 level 1pps 'on-time' pulse is maintained within 50µs of UTC.
When synchronised with DCF or MSF radio time code transmissions, via an optional 484 series time code receiver, the Timelord-Net Time Source output signals are maintained within 30mS of UTC.
The TimeLord-Net Time Source has a 256-year internal calendar valid for the range 1999-2254 with four-digit year setting.
A unique time zone set-up facility is programmable for any location in the world and automatically calculates the appropriate time offsets to UTC and future seasonal time changes for up to fifteen time zones.
The RS232 and RS422/RS485 interface allows one of more than 20 different serial ASCII time and date telegram message formats to be selected by the user.
General purpose formats are user configurable for:
- 7 or 8 data bits
- Odd, even or no parity
- 1200, 2400, 4800 or 9600 baud rate
- Message repetition rates of every second, minute, five minutes, hour, day or on request
Relay Contacts
Changeover relay contacts are provided rated at 30VDC @ 500mA. The relay can be programmed by the user to changeover for one second at various repetition rates:
- Every 5 seconds
- Every minute
- Every hour
- Once per day at a user programmable time
- On the occurrence of specific events:
- On power failure
- While locked to an external time reference
- During an error state
482 Time Code Output
The 482 multi-zone time and date code output is intended for the control and synchronisation of 400A series digital clocks and time zone displays showing time and date in up to fifteen different time zones.
One Timelord-Net unit can control up to fifty V-400A series slave displays located up to 1km from the TimeLord unit using a simple, non-critical, single cable pair. The appropriate UTC offset and all future seasonal time changes are pre-programmed for almost every global location.
Optional Output Interface
The optional -IRIG interface provides a 1kHz amplitude modulated signal via a 600 ohm transformer coupled output. The output signal level is internally adjustable 0-7V p-p and is factory preset to 3V p-p. The output signal format may be selected by the user from the following choices:
- IRIG-B (B123)
- IRIG-E (E123)
- Afnor NFS 87-500
- NEMA 911
- IEEE 1344 (please refer to the TimeLord manual for further information on the IEEE 1344 extensions implemented)
| Specifications | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| References: (Off-Air Receivers) |
|
||||||||||||||||
| Outputs: |
|
||||||||||||||||
| Front Panel: (Controls and Indicators) |
|
||||||||||||||||
| Accessories: |
|
||||||||||||||||
| Physical: |
|
||||||||||||||||
Click here for further details: Clocks & Displays - TimeLord-Lite - TimeLord-Net - TimeLord-MTG
The following manuals are available: TimeLord Family - Single-Zone Displays - Multi-Zone Displays
