Wall Bracket Mounting#

The double sided clock consists of two parts, one serving as the control module (this one encompasses the jacks to connect powering voltage, synchronization source, the temperature sensor and the keyboard to the clock), and the other one serving as the display module (with the terminal for the connection of the interconnecting cable). Both clock parts are interconnected via a 10‑core flat cable. The clock suspension part is delivered separately.

Step 1

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  • Drill four anchoring holes into a wall of a diameter adequate to accommodate supplied wood-type screws with dowels.

  • Interlace incoming cables through suspension pipe. Fasten the wall bracket to wall using 4 wood-type screws of 5 mm diameter.

Step 2

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  • The frame is fixed using two suspensions (above) and two sliding springs (bottom). The frame is locked by frame catch from the bottom side of the frame.

  • Remove the blind cap from the opening and insert the Allen key into the opening. Turn the key softly in clockwise direction to unlock the frame catch.

Note

Models DC with digit height 57, 75 and 100 the frame catch is unclocked (the screw is already screwed in) when the clock is delivered. The is no need to remove the blind cap and insert the Allen key.

Step 3

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  • Lift‑off the anchoring plate using a screwdriver inserted in between the sheet and the frame at the sliding spring point on the clock bottom side.

  • Disconnect the interconnecting cables by decoupling the terminals on the control PCB.

Step 4

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  • Repeat then the process with other display part.

Step 5

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  • Interlace incoming cables through pipe insert on clock body. Slip-on the clock body onto suspension in a way that screws fit into a groove on pipe insert. Fix the connection by tightening the screw using Allen key No. 3.

    Caution

    The screws must fit into the upper groove on the pipe insert; otherwise, it will not be possible to mount a display part onto the anchoring plate.

    After mounting the display part, it is possible to elevate the clock by securing the anchoring plate in a manner where the screws fit into the lower groove on the pipe insert.

  • Interlace the incoming conductors through the opening located next to the terminal board and connect the conductors to the terminal board on the anchoring plate, in accordance with the descriptive nameplate. Give an appropriate shape to the conductors of cut them off at a length which does not obstruct the mounting of the clock onto the anchoring plate.

Step 6

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1

See chapter Cable Connection.

  • Connect the wires of the respective component (e.g., temperature sensor, keyboard, or RS‑485 interface) to the plug‑in terminal connector according to the label next to the terminal.

    1

    The plug-in terminal connectors are inserted in the terminals.

Caution

For the LGC variant, set the DIP switch according to the used synchronization signal (its position can be found in the Cable Connection chapter, marked with the letter B).

For lines synchronization, keep the DIP switch in its default position.

For all other synchronization signals (DCF, MOBALine, polarized impulse line, IRIG‑B), set the DIP switch to the DCF position.

See the chapter Clock Operation > Non-network Clock Operation for detailed information about connecting the various synchronization sources and receivers.

Step 7

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  • Place the display part of the clock to the anchoring plate, at a position which is opposite to the terminal board and suspend this part onto the upper strings. Interlace the 10‑core interconnecting cable through the lower opening which finds itself at the closest to the terminal board on the anchoring plate.

  • Connect the 10‑core interconnecting cable and the interconnecting cables into the corresponding plugs on the clock control PCB.

  • Push the temperature sensor connector, the keyboard connector, Ethernet connector or the RS-485 jacks into the corresponding terminals on the control PCB.

  • Insert the plug‑in connector of the respective component (e.g., temperature sensor, keyboard, or RS‑485 interface) into the corresponding terminal on the control board.

    Connect the Ethernet cable to the RJ-45 connector, if available.

    Caution

    Be careful not to swap the terminals. Check the markings of the terminals on the control board.

Step 8

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  • Snap both parts of the clock in onto the springs by pushing on the lower part of the frame.

    Caution

    Care should be taken when placing the cables between the frame edge and the anchoring plate, so an not to nip them.

  • Check whether the anchoring plate on the sides fits exactly into the grooves established in both parts of the digital clock (these must be pushed against each other in a way to mask the anchoring plate – after placing the parts the plate shall not be seen).

Step 9

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  • Insert Allen key into the opening on the clock bottom side. Turn the key softly in anticlockwise direction. The frame catch will snap in.

  • Replace the blind cap on the opening.

Hint

To dismount the clock, use reverse procedure.