5 Installation
Page 5-6
gas-net
C1 and C2
Connection of the Siemens M20 / TC35 Wireless Modem to 24 V
Unfortunately, no generally valid color-
coding details can be given for the
connection of the M20 or TC35 wireless
modem to 24 V DC. Due to the variety
of different cables supplied, it is not
possible to guarantee a uniform color
coding.
Therefore, please proceed as follows:
Position the Western plug of the con-
necting cable in such a way that the
locking catch is at the front and pointing
upwards. Look at the clamped cable:
There are 6 wires. The assignment of
the wires from left to right can be seen
from the illustration on the right.
In this way it is also possible to assign
the color coding correctly at the open
end of the cable and to connect the
voltage supply correctly.
Note:
Wires 3 and 6 must both be con-
nected to +24 V! These are monitoring
and supply signals.
11
The illustration shows a Siemens M20 wireless modem, but holds by analogy for the
Siemens modem type TC35.
