Termination Of The Rs 485 Interface; Figure 5.2: Termination Of The Rs 485 Interface In The Ma 8-01 - Leuze electronic BCL 8 Series Original Operating Instructions

Accessories/order codes
The BCL 8 is connected to the MA 8-01 via the connection cable KB 008-1000/2000/3000
(AA/AR). The voltage supply is connected via the PWR IN HOST/RS485 socket.
ATTENTION!
It is absolutely necessary to connect the functional earth, since all electrical interference
(EMC coupling) is discharged via the functional earth connection.
5.3.4

Termination of the RS 485 interface

A permanently installed termination network is present in the MA 8-01. The network termi-
nates the outgoing RS 485 data interface, as shown in Figure 5.2, and cannot be switched
off.
Figure 5.2:
30
5 V
Ω
390
RS 485 A
Ω
220
RS 485 B
Ω
390
GND
Termination of the RS 485 interface in the MA 8-01
RS 485 receive/transmit data
A-line (P), PIN 2
RS 485 receive/transmit data
B-line (N), PIN 4
BCL 8 Leuze electronic