The following data outputs 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 w482® time code output which can control up to fifty 400A series digital clocks or time zone displays showing time and date in up to 15 different world-wide time zones.

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.

When synchronised with DCF or MSF radio time code transmissions, via an optional 484 series time code receiver, the Timelord Lite Time Source output signals are maintained within 30mS of UTC.

The Timelord Lite 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.

RS232 and RS422/RS485 interface One of more than 20 different serial ASCII time and date telegram message formats may 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 30v dc @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 or to changeover on the occurrence of specific events: -

• On power failure

• While locked to an external time reference

• During an error state

W482 Time Code Output

The w482® time 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 Lite unit can control up to fifty 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 timechanges are pre-programmed for almost every global location.

Optional Output Interface

The optional -IRIG interface provides a 1KHz amplitude modulated signal via a 600. 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 choice:

• IRIG-B (B123)

• IRIG-E (E123)

• Afnor NFS 87-500

• NEMA 911

• IEEE 1344 (please refer to the Timelord manual for furtherinformation on the IEEE 1344 extensions implemented)