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www.qundis.com Network
Node
WTT16 V22
CE1N2874en
09.09.2009
RESET
MODE
DISPLAY
1
2
3
4
6
7
11
10
8
9
5
12
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)
12. IrDA-Interface (optically)
The wall-mounted section of the network nodes WTT16.. contains only the main battery. In
variant WTT16.232 the RS232 interface is fixed here. The wall-mounted section of the net-
work nodes WTX16 and WTX16.232 contains the power pack and possibly an additional
RS232 interface.
GND
n.
c
.
RTS
CTS
Rx
Tx
4
2
7
3
5
6
1
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
Wall-mounted section
