INSTALLATION AND COMMISSIONING
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Manual USZ 08 · EN05 · 2015-06
18
Terminating resistor
The measuring element in conjunction with the USE 09 ultrasonic electronic system is to be
connected via a terminating module to the COM1 port on the rear panel of the ERZ 2000(-NG). This
module is included in the delivery and comprises one terminating resistor.
The terminating module is mounted on a cap rail and has the following pin assignment:
A
F
C
H
B
E
D
G
Interface
Adapter
D
C
B
A
E
F
G
H
330 OHM
Terminating module
USE 09
RS 48
5-
1
GD
a
b
ERZ 2000
COM 1
5
3
8
The plug-in module which was included in the delivery with older devices has the following pin
assignment.
Terminating resistors
for RS 485
(USE 09 with ERZ 2000)
US
E 09
ERZ 2000
RMG MESSTECHNIK GMBH
35510 Butzbach
USE 09
Terminating
module
ERZ 2000
R
S
48
5-1
CO
M 1
GD
a
b
5
5
5
3
3
3
8
8
8
330
Ω