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Engineering notes
Commissioning
Wiring diagram
CAUTION: connect the
mains cable to the power
supply unit only!!
Mains connection
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For detailed engineering instructions, refer to the Siemeca™ Engineering manual
CE1J2870.
For mains-powered WTX16.... network nodes, the mains connections are to be made
first at the selected mounting positions (typically on every second floor, mounting height
≥ 2 m), if required.
S
N
L
R1 ... Rn
M1 M2
1
2
3
Connect the AC 230 V power supply line to the power pack of the
WTX16... in the following order: Remove the upper housing section of
the WTX16... from the base. For that purpose, remove the 2 cable
connections (power supply (4) and M-Bus (6)) between gateway and
base. Then, use a suitable tool (screwdriver or similar) to slightly open
one of the two lateral fixing levers so that upper housing section and
base can be separated.
Then, the top section of the WT...16 is to be fitted using 2 dowels and
screws (spacing of dowels 184 mm with the WTX16...).
Connection of the AC 230 V power line to the power pack of the WTX16... is to be
made as follows:
A 2-core mains cable (L and N) is already preinstalled at the mounting site. The power
pack must be connected by qualified staff. The cores must be sheathed with the en-
Network Node WTT16..., WTX16...
Explanation
When, from a PC, the WT...16 is accessed with
a WTZ.RM radio module, symbol " " will appear
When all WTT... have their receivers continu-
ously on so that all new data can immediately
be exchanged on the network, 2 dots will ap-
pear in the upper half of the display
S
Switch
L, N
AC 230 V mains power supply
M1, M2
M-Bus output
R1...Rn
optional interface(s)
1
Mains connection L and N
2
Preinstalled mains cable (no flexible
3
Extra insulation (shrink sleeve)
power cable!)
5/8
CE1N2874en
14.07.2005
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