Vertiv™ NetSure™ ITS 12V DC Power Shelf Installation & User Manual
10
5.5.6
System Interconnections
NOTE!
The installation may consist of one (1) main module mounting assembly and up to two (2) expansion module
mounting assemblies, or all main module mounting assemblies. In installations with one main module mounting assembly and
up to two expansion module mounting assemblies, all module mounting assemblies are on one DC bus and are controlled by
a single SCC controller. A common CAN bus is shared across all module mounting assemblies and all rectifiers load share
and all rectifiers are load managed via the SCC. In installations with all main module mounting assemblies, each module
mounting assembly is on a separate DC bus and each module mounting assembly is controlled by (contains) a separate SCC
controller. A separate CAN bus exists per module mounting assembly, rectifiers load share per module mounting assembly,
and rectifiers are load managed via an SCC per module mounting assembly.
NOTE!
These connections are not to be made between multiple main module mounting assemblies (containing SCC
controllers).
Refer to
for a system interconnection diagram.
As each module mounting assembly is interconnected, remove the termination resistor from the main module mounting assembly and
plug it into the appropriate connector on the last module mounting assembly as shown in
Figure 5-4:
System Interconnection Diagram
Rear (Main Module
Mounting Assembly)
Rear (Expansion Module
Mounting Assembly)
Termination
Resistor
Cable P/N 557463
(CAN Bus)
Cable P/N 557463
(CAN Bus)
Cable P/N 557553
(Power Fail)
Cable P/N 557553
(Power Fail)
Rear (Expansion Module
Mounting Assembly)
Termination
Resistor
Termination
Resistor
