1 principle diagram, E-m-hc2-accessories_24 – ROTRONIC HC2 User Manual

Page 18

Text mode
Original mode

E-M-HC2-accessories_24

Rotronic AG
Bassersdorf, Switzerland

Document code

Unit

Accessories and Parts
for probes, indicators and transmitters

Instruction Manual

Document Type

Page 18 of 23

Document title

Specifications

Temperature limits

-40…85°C

Built-in resistor for terminating main data line

240 Ohm, can be connected or disconnected with a
jumper

Connection type

T2 or T3

7.3.1

Principle diagram

Junction box AC3021 allows the following connections:

D +: TX+ / RX+ (RS-485 bidirectional)
D - : TX- / RX- (RS-485 bidirectional)
V + : Supply voltage (+) via RS-485 data line
GND: Supply voltage (-) via RS-485 data line
Shield: RS-485 data line shield