Copyright © 2005
– 2021 R. STAHL TRANBERG AS. All rights reserved. Page 33 of 38
Section 7.04
Main power supplies
The Master CPU has terminals for incoming 24VDC power. Up to four power supplies
may be connected, which inside the modul e are wired in parallel by means of high
capacity diodes. The resulting common 24VDC power is then made available as a
power source to all other modules that are a part of the system.
Each of the up to four power supplies are monitored by the Master CPU.
Section 7.05
Termination of system
The system must be terminated correctly to ensure that all nodes are powered and that
they communicate properly.
Panel:
The panel should be fixed to the bridge or similar place by means of four
screws.
Connect 24VDC power and the communication cable.
Output modules:
The output modules should be clamped onto a 35 mm rail using the clip on the
rear side of the modules.
Connect 24VDC power and the communication cable.
Master CPU:
The module should be clamped onto a 35mm rail using the clip on the rear side
of the modules.
Connect the various power sources (up to four) as described in the provided
system data sheets.
Connect 24VDC power to other modules and panel.
Connect the communication cable.
1
2
3
4
5
6
7
8
RJ-45
A
Ref
Ref
B
RJ-45
1
2
3
4
5
6
7
8
A
Ref
Ref
B
Shield
Shield
Cable RS-485
TIA 568-A:
White/Orange
Orange
Blue
White/Blue
TIA 568-B:
White/Green
Green
Blue
White/Blue
Pin:
3
6
4
5
Signal:
A
B
Ref
Ref
Use twisted pair cable with screen.
Characteristic impedance:
100-250ohm
Pin 1,2,7,8: Not connected
Connections, communication cable