The 1200T series Analog Clock Displays take master and slave clock technology to new levels of convenience and excellence. The clocks are microprocessor controlled and employ separate direct drive motors for each hand. This means that, as well as being able to set the time almost instantaneously, the new displays are also silent in operation. The hands of the clocks can be programmed to move in sweep mode or in steps.
Each clock can be programmed for automatic Daylight Saving Time adjustment, as well as for any time zone offset using a laptop computer. It is then only necessary to supply the clock system with Universal Coordinated Time (UTC) from the master clock. Daylight Saving Time changes will be automatic, as will adjustments for different time zones.
Each clock can be used as a master or slave clock. When used as a slave clock, it reads SMPTE linear timecode (LTC) from a master clock. When used as a master, it generates LTC for distribution to other slave clocks. In fact, any clock in the chain can generate timecode as soon as it loses timecode input from the master. The system is therefore extremely robust and reliable.
When the +T option is added, the 1200T series clocks can lock to time distributed as Network Time Prototcol (NTP) over Ethernet.
The problems of power distribution have also been considerably simplified. With other clock products, it is necessary to install power outlets wherever clocks are to be located. The 1200T series system slave clocks are powered from the Ethernet cable that distributes both power and NTP time. The clocks may also be powered locally using the AC to 12V DC adapter provided.
Internal crystal oscillators ensure that the clocks will continue to operate in the absence of input timecode. Internal battery backup ensures that each clock will continue to keep time in the absence of timecode and power. When power resumes, the hands will immediately reset to the correct time.
The 1200T series clock displays are offered in two sizes. Backlighting is available for all models.
LTC Input | |
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Standard | SMPTE ST 12-1 linear time code - 25 or 29.97 drop-frame Fps nominal |
Connector | Phoenix 4 pin terminal connector |
Signal Level | 1V p-p nominal |
Input impedance | > 30KΩ |
LTC Output | |
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Standard | SMPTE ST 12-1 linear time code - 25 or 29.97 drop-frame Fps nominal |
Connector | Phoenix 4 pin terminal connector |
Signal Level | 2V p-p nominaL |
Mode | configurable as loop thru from input or output of local clock time |
Time Keeping | |
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Accuracy | < 2s per day with power on, no timecode present < 10s / day with power removed |
Time Zone Offset | 0 to 23½ hours in ½ hour increments Set with DIP switches or serial port command or VistaLINK® Automatic daylight saving time can be enabled. |
Serial Port | |
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Connector | Female DB-9 |
Level | RS232 |
Baud Rate | 57.6 Kbaud |
Format | 8 data bits, no parity, 2 stop bits |
Ethernet | |
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Network Type | Fast Ethernet 100 Base-TX IEEE 802.3u standard for 100 Mbps baseband CSMA/CD local area network Ethernet 10 Base-T IEEE 802.3 standard for 10 Mbps baseband CSMA/CD local area network Supports Type 1 Power over Ethernet |
Connector | RJ-45 |
NTP Standard | NTP v4 compliant, client mode support when +T option installed |
Backup Battery | |
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Type | CR-2032 3 volt lithium cell |
Life expectancy | > 5 years |
Electrical | |
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Voltage | |
AC/DC | 12V DC nominal Auto ranging 100↔240V AC 50/60Hz to 12V DC adapter provided. |
Power Over Ethernet | IEEE 802.3at Type 1 |
Power consumption | 12 watts |
Physical | |
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Outside Dimensions | |
1212T, 1212TL | 13" W x 13" H x 2.5" D (330 mm W x 330 mm H x 64 mm D) |
1216T, 1216TL | 17" W x 17" H x 2.5" D (432 mm W x 432 mm H x 64 mm D) |
Clock Face | |
1212T, 1212TL | 12" diameter |
1216T, 1216TL | 16" diameter |
Weight | |
1212T, 1212TL | 6.5 lb (2.9 kg) |
1216T, 1216TL | 10.5 lb (4.75 kg) |
1212T | 12 inch Analog clock |
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1212TL | 12 inch Analog clock and back lighting |
1216T | 16 inch Analog clock |
1216TL | 16 inch Analog clock and back lighting |
Ordering Options | |
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+T | Network Time Protocol |