Connecting The Rs485 Interface - Landis+Gyr E650 Series User Manual

Installation and uninstallation
4.3.1

Connecting the RS485 interface

D000030108 en m – E650 Series 3 – ZMD300AT/CT – User Manual
If a connecting wire must be disconnected again for any reason, this is
performed in the reverse sequence:
Figure 47. Releasing connection from spring-loaded terminal
Damage to terminals
Never withdraw connecting wires with the terminal closed, since this could
damage the terminal.
If you connect the RS485 interface you must not strip back the shielded
cables, e.g. to connect the individual wires to an external terminal block
(see figure below), as this considerably increases the likelihood of
interference.
Figure 48. How to connect RS485 correctly
It is also possible to use RS485 distributors instead of connecting the
RS485 cables directly to the meter.
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