Specifications
22
FRONT PANEL CONTROLS
1. The ENTER button is used to enter selected data into the memory. This button is active in
the program mode.
2. The CANCEL button is used in the review mode to cancel programmed times and dates
that are no longer needed. It is also used to exit the program mode and return the clock to
normal operation.
3. The AHEAD and BACK buttons are used to increment the display to the time or date to be
programmed. They are also used in the Review mode to observe multiple programmed
times for the output circuits and multiple holidays. These buttons are active in the program
mode.
4. The MODE button is used to select the functions to be programmed or reviewed.
An illuminated indicator will show the selected mode. Each time the MODE button is pressed,
the next indicator in sequence will be illuminated. The Time Set function allows the
setting of current time, day, month, date and year. The Holiday function allows setting of
holiday dates. The Duration, On and Off modes are used to program the output circuits.
The Erase mode is used to bulk erase all programmed memory times and dates except
the current time and date. The MODE button is active in the program mode.
5. The REVIEW button is used in conjunction with the MODE button to check the
programmed times and dates. The review button is a push ON push OFF control, it must
be turned OFF to advance the MODE function. It is active in the program mode.
6. The SELECT button is used with the mode function to program the month, date and year in
the Time Set mode, and the beginning and ending month and date in the Holiday mode. The
SELECT button is also used in the review mode to observe the beginning and ending dates
of holidays. This button is active in the program mode.
7. The CIRCUIT button is used in the Duration, On and Off modes to select the output circuit to
be programmed. It is active in the Duration, On and Off modes.
8. The DAY button is used in the On and Off modes to select the appropriate day or days for
programing the output circuits. It is used in the Time Set mode to set the current day of the
week.
9. The IMPULSE SECONDARY CORRECTION switch is used as an aid for initial
synchronization of secondary impulse clocks. Placing the switch in the RAPID position
causes the clocks to advance to the 58th or 59th minute at a rate of 30 steps per minute.
Returning the switch to the OFF position returns control of the secondary clock to the Master.
Placing the switch in the HR/MIN position causes the clocks to advance at the rate of 30 steps
per minute until the switch is returned to the OFF position. This switch is active in the
program Time Set mode. This switch must be in the OFF (center) position except while
advancing the Impulse Secondary Clocks.
10. The WIRED SYNC SECONDARY CORRECTION switch is used as an aid for initial
synchronization of secondary wired synchronous clocks. Placing the switch in the HOUR
position sends one hourly correction signal to the secondary clocks. Placing the switch to the
12 HOUR position sends one 12 hour correction signal to the secondary clocks. Move the
switch to OFF to return secondary clock control to the master. This switch is active in the
program Time Set mode. This switch must be in the OFF (center) position except while
advancing the Wired Synchronous secondary clocks.
11. The CIRCUIT CONTROL switches are provided for manual control of the output circuits. The
OFF position turns the output circuit OFF regardless of the programing. The AUTO position










