Lufft CHM 15k, User Manual

Page: 21 / 73

Operating Manual CHM 15k R13 / 07-2019
Installation 21
2. Grounding cable 10 mm² (1-pin, green-yellow), standard length 2.6 m, for the grounding
connection (see Figure 12) . The grounding cable must be kept as short as possible
Figure 12 Grounding Connection.
3. Data cable (RS 485, 3 wire): A (-) conductor: yellow; B (+) conductor: green; RS485 - GND: white
& brown; shielding as required: (see Figure 13); standard length 10 m
Figure 13 RS485 connection to transducer.
4. Data cable (LAN): equipped with a standard RJ45 plug, for connection to a remote computer, hub
or switch, standard lengths 5 or 10 m. (see Figure 14)
5. Optional instead of item 4: Data line (DSL): equipped with a 2-pin cable for the connection of a
DSL modem (see Figure 14)
The designation RDA (-), RDB (+) is defined differently by manufacturers. Here: Lufft uses the notation
of B&B electronics.
Figure 14 DSL connection.