3.2 Serial Expansion Backplanes: Ic694Chs392, Ic694Chs398: Pacsystems™ Rx3I System Manual Section 3
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Omar Alfredo Del Castillo Quispe3.2 Serial Expansion Backplanes: Ic694Chs392, Ic694Chs398: Pacsystems™ Rx3I System Manual Section 3
Uploaded by
Omar Alfredo Del Castillo QuispePACSystems™ RX3i System Manual Section 3
GFK-2314AA Oct 2021
3.2 Serial Expansion Backplanes: IC694CHS392,
IC694CHS398
The RX3i system can include any combination of up to seven RX3i Serial Expansion backplane and/or
Series 90-30 Expansion/Remote Backplanes. RX3i Serial Expansion Backplanes are available with either five
I/O slots (IC694CHS398, displayed in the following figure) or ten I/O slots (IC694CHS392).
Figure 80: Serial Expansion Backplane
Backplane 85
PACSystems™ RX3i System Manual Section 3
GFK-2314AA Oct 2021
Universal Backplane
▪ The leftmost module in an RX3i Serial Expansion
I/O Bus
Backplane must be a Serial Expansion Power Supply:
▪ IC694PWR321: Serial Expansion Power Supply,
120/240 Vac, 125Vdc
▪ IC694PWR330: Serial Expansion Power Supply, Expansion Backplane
120/240 Vac, 125Vdc, High Capacity
▪ IC694PWR331: Serial Expansion Power Supply,
24Vdc, High Capacity
▪ Module Hot Insertion and Removal are NOT permitted on
Up to 15 meters (50 Ft)
Expansion Backplane
Expansion Backplanes.
▪ Each Expansion Backplane has a Rack Number Selection
DIP switch (Figure 18) that must be set before module
installation.
▪ Each Expansion Backplane has a Bus Expansion connector Expansion Backplane
at its right end for attaching an optional expansion cable.
There can be no more than 50 feet (15 meters) of cable
connecting Expansion backplanes with the Universal
Backplane. If the system includes Series 90-30 Remote
Expansion Backplane
Backplanes, the additional requirements summarized in
Section 1.3 through Section 1.5 must also be observed.
Terminating
Resistor
Figure 81: Example RX3i System with
Expansion Backplane Racks
Backplane 86