Rsti Bus Data Pin & Field Power Pin Description - Emerson PACSystems RSTi User Manual

User Manual
GFK-2745C
Connecting Shielded Cables
Observe the following when installing shielding:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Fasten the screws for the shield connector using a screwdriver. (#6 above).
†† The maximum pull strength should not go beyond 10 kgF.
2.1.7 RSTi Bus Data Pin & Field Power Pin Description
Table 1: RSTi Bus Pin Name and Description
No.
1
2
3
4
5
6
7
8
Installation
Strip the outer cable sheath to the desired length. The appropriate length depends
on the connection position of the wires and whether there should be a large or a
small space between the connection point and the shield connection.
Shorten the braided shield to 15mm (0.6 in.) (#1 above).
Fold the braided shield back over the outer sheath. (#2 above)
Remove the protective foil.
Strip 8mm (0.3in.) off the wires. (#2 above)
Open the shield connector (#3 above).
Check the orientation of the shield clamp in the Shielded Terminal Strip and change
its position if necessary (see below for instructions).
Place the cable with the folded braided shield in the shield connector. (#4 above)
Close the shield connector (#5 above).
Name
Vcc
GND
Token Output
Serial Output
Serial Input
Reserved
Field GND
Field Vcc
Description
System supply voltage (5V dc)
System Ground
Token output port of Processor module
Transmitter output port of Processor module
Receiver input port of Processor module
Reserved for bypass Token
Field Ground
Field supply voltage (24Vdc)
Chapter 2
Nov 2019
11