5 connecting the power supply – Siemens SIMATIC NET PROFIBUS User Manual
Page 179
Active Components for RS-485 Networks
5-13
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
5.5
Connecting the Power Supply
Cable Type
To connect the 24 V power supply, use flexible cables with a cross section of 0.25
mm
2
to 2.5 mm
2
(AWG 26 to 14).
Connecting the Power Supply
To connect the power supply of the RS-485 repeater:
1. Strip the insulation from the wire for the 24 V DC power supply.
2. Connect the cable to terminals “L+”, ”M” and “PE”.
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