2-9
When N1 is separately connected to the Modular Rack, the N main unit can communicate with the parameter module.
N1 can implement power supply and measurement parameter interaction with the parameter module through the Rack
adapter board and Rack NIOS board. The parameter module is a one-slot parameter module of thehigh-end monitor.
When N1 is in use with the Dock, it can be connected to the Dock interface power board through the Dock adapter
board. In this way, the Dock interface board supplies power to N1. N1 connects the USB, external device connector (Mini
DB15), VGA and wired network port to the Dock response interface to implement external interface connection and
extension.
When N1, the Modular Rack, and the Dock form a whole, functions of the above two combinations are implemented at
the same time.
2.2.3 Extended Parameter Module Composition
N1 can be connected to the following four external modules through the Modular Rack:
PiCCO
module
Sidestream CO
2
module
Microstream
CO
2
module
Mainstream
CO
2
module
The figure below shows parameter module expansion through the Modular Rack:
N1 main unit
Three kinds of extension modules
CO
2
/PiCCO
Rack
NIOS
board
Rack
adapter
board
54 pins
Serial port
Pluggable connector
In this application, N1 and the external module are inserted into the specified slots of the Modular Rack.
The external module is connected to the Rack adapter board through the Rack NIOS board in the Modular
Rack. The battery in the N1 main unit powers the parameter module. The Rack adapter board and N1 main
unit are connected through the 54-pin pluggable connector. The Modular Rack can also be inserted into the
Dock so that the Dock can supply power to it.
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