| TR 641 top2- Digital time switch with yearly and astronomical time program
- 1 channel
- External input
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| TR 641 top2 RC- Digital time switch with yearly and astronomical time program
- Time synchronisation via connection of external DCF or GPS antennas, additional posititioning for astronomical program with GPS
- 1 channel
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| TR 641 top2 RC 24V- Digital time switch with yearly and astronomical time program
- Time synchronisation via connection of external DCF or GPS antennas, additional posititioning for astronomical program with GPS
- 1 channel
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| TR 642 top2- Digital time switch with yearly and astronomical time program
- 2 channels
- 2 external inputs
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| TR 642 top2 RC- Digital time switch with yearly and astronomical time program
- Time synchronisation via connection of external DCF or GPS antennas, additional posititioning for astronomical program with GPS
- 2 channels
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| TR 642 top2 RC 24V- Digital time switch with yearly and astronomical time program
- Time synchronisation via connection of external DCF or GPS antennas, additional posititioning for astronomical program with GPS
- 2 channels
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| TR 644 top2- Digital time switch with yearly and astronomical time program
- 4 channels
- 4 external inputs
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| TR 644 top2 RC- Digital time switch with yearly and astronomical time program
- Time synchronisation via connection of external DCF or GPS antennas, additional posititioning for astronomical program with GPS
- 4 channels
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| EM 4 top2- Extension module for TR 641 top2 RC, TR 642 top2 RC and TR 644 top2 RC
- 4 channels
- Width: 4 modules
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| EM LAN top2- Ethernet communication module for remote access via LAN network to time switches TR 641 top2 RC, TR 642 top2 RC and TR 644 top2 RC
- Remote programming using OBELISK top2 PC software
- Direct remote access to time switch (e.g. reading out switching status, performing manual switching, checking time) with OBELISK top2 Software
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