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Electronics section
Wall-mounted section
Building Technologies
HVAC Products
The housing with the electronics is identical for all types of network nodes. It contains
the network controls:
1
2
3
4
6
MODE
8
RESET
1
Connector for M-bus service connection
2
Connector for enhancements
3
Screw terminal for the fixed M-bus connection
4
Connector for power supply DC 3,6 V
5
Connector for backup battery Indication of mains supply
6
Operating mode button (red)
7
Button for switching the display (blue)
8
Reset button (recessed)
9
Display
10 Connector (not for the user)
11 Firmware memory (covered up)
The wall-mounted section of the network nodes WTT16... contains only the main battery.
The wall-mounted section of the network nodes WTX16 and WTX16.232 contains the
power pack and possibly an additional RS232 interface.
6
5
7
1
Mains connection L and N
2
Preinstalled mains cable (no flexible power cable!)
3
Extra insulation (shrink sleeve)
4
Connector for power supply DC 3,6 V
5
Screw terminal for the fixed M-bus connection
6
Connector for M-bus service connection
7
Indication of mains supply
Network Node WTT16..., WTX16...
5
9
11
7
DISPLAY
2
3
4
10
1
3/8
CE1N2874en
14.07.2005
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