System Clocks

The simplex 6400 Master Clock provides accurate time keeping for control of Simplex Slave Clocks such as -2 Minute Impulse and -6 Synchronous. In addition the 6400 has programmable time and day of week referenced control of six output circuits. A liquid crystal display shows the time, day of week, and the status of the six output circuits. The display is also used for programming, editing and reviewing of stored programs.

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MasterTimeSync is a program that will update ALPHA LED Serial Clocks every minute, every hour, or according to a User-Defined Schedule based on the Time of the PC/System upon which this Application is running.

MasterTimeSync offers two alternative ways of sending this information to the Clocks , the first being via a serial connection from one of the computers Comm Ports the other being via a LAN connection using TCP\IP .

Note: for TCP\IP you will require a Lantronix UDS-10/100 Device Server.

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Simplex -2 Minute Impulse Slave Clocks are individually checked for agreement with the Simplex 6400 Master Clock once each hour, providing uniform and accurate time. Any clock not in synchronisation with the 6400 will be automatically advanced orretarded as required. All clocks are connected to a 2 wire parallel circuit, 24VDC is the normal voltage. Each minute the 6400 emits an electrical impulse, which is feed to each clock advancing it one minute. Each hour, rapid impulses are transmitted from the 6400 to provide automatic hourly correction of slow clocks. The correction range of minute impulse clocks is 10 minutes fast and 15 minutes slow.

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Simplex -6 Synchronous Slave Clocks are driven by a 240VAC synchronous motor and a correction armature. Each clock varying from system time because for a power failure is individually and automatically corrected once each hour for synchronisation with the Simplex 6400 Master Clock. Correction range is 59 minutes slow, 55 seconds fast. Twelve hour correction provides individual synchronisation of clocks up to 12 hours slow. This insures that even the most prolonged power interruption in individual clocks or the complete system will be compensated for automatically.

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The Alpha Serial Clock displays the time in either 12 hour or 24 hour mode using a 4 inch LED display. The clock can be used by itself or it can be networked with other Alpha clocks, they have a dip switch that can be set to Slave or Master. With one clock set to master and a RS485 daisy chain of clocks set to slave the time can be set at the master automatically adjusting all the slaves. MasterTimeSync can be used to control the Alpha clocks from a PC, the clocks are wired in Serial RS485 and connected to a comm port on the PC. Alternatively: the Alpha clocks can be connected across a LAN by using TCP/IP, this way in many case can save time and money by utilising existing Ethernet networks. The clocks are controlled by MasterTimeSync Software that gives you the choose to send via serial or TCP/IP you would then require a Lantronix UDS-10/100 Device Server to convert the TCP/IP back to serial data at the clock.

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The SynchroNet clocks come as either straight time or as a calendar model. They run independently or can be controlled from a Simplex 6400 Master Clock or MasterTimeSync. There are several models available:
- Ethernet
- -6 Synchronous
- -2 Minute Impulse
They can be used as a direct replacement to existing Analogue clocks running any of the above formats without the expense of changing cabling. With the Ethernet model and a SynchroNet GPS Time Server they can run across an existing network and operate without software or a PC running.

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The Lantronix UDS-10/100 device server is used in conjunction with the ALPHA Serial Clock and MasterTimeSync when running across an Ethernet LAN. The Alpha clocks talk in serial data so to communicate to the Alpha via a LAN, MasterTimeSync adds a TCP/IP header package to the data and sends it across the network the UDS-10/100 with the correct IP Address receives the data interprets it and updates the clock.

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