Rules for Interconnectivity
Original instructions
About us
Introduction
The Quantum local rack within a Quantum EIO system can have different combinations of Ethernet head modules. This topic describes the types of networks created when the 140NOC78000 distributed I/O head modules interconnect with other head modules on the local rack.
A local rack contains one 140CRP31200 remote I/O head module and up to 6 communication modules (only one of which can be a 140NOC78100 control head module). Use the interlink port on the 140NOC78000 module to interlink with the other head modules on the local rack for various network combinations:
140NOC78000 Module Interconnectivity
Network Type
Description
up to three 140NOC78000 modules interlinked with the 140CRP31200 module
device network
combination of remote I/O and distributed I/O devices
up to six 140NOC78000 modules not interlinked with any other head modules
isolated distributed I/O network
distributed I/O devices that are not a physical part of the Quantum EIO system
up to five 140NOC78000 modules, only one of which is interlinked with the 140NOC78100 module
independent distributed I/O network
distributed I/O devices located on an existing distributed I/O network that utilize control network transparency in the Quantum EIO system
  • up to three 140NOC78000 modules interlinked with the 140CRP31200 module
  • one of these three modules is interlinked with the service/extend port of the 140NOC78100 module
extended distributed I/O network
distributed I/O devices located on an existing distributed I/O network that are a physical part of the Quantum EIO system
up to three 140NOC78000 modules interlinked with the 140CRP31200 module and the 140NOC78100 module
control network transparency
provides Ethernet transparency between the device network and the control network
NOTE: The types of distributed I/O topologies you can use in a Quantum EIO system are discussed in the Selecting the Correct Distributed I/O Topology topic.
Interlinking the 140NOC78000 Module in a Device Network
Interlink the 140NOC78000 module with the 140CRP31200 module to create a device network: 
1
140CRP31200 remote I/O head module 
2
140NOC78000 distributed I/O head module 
3
remote I/O drop on the main ring 
4
DRS on the main ring connecting the remote I/O sub-ring 
5
remote I/O sub-ring 
6
DRS on the main ring connecting the distributed I/O sub-ring 
7
distributed I/O devices 
8
distributed I/O sub-ring
Interlinking the 140NOC78000 Module in an Isolated Distributed I/O Network
The 140NOC78000 modules are not connected any other head module on the local rack. 
1
140CRP31200 remote I/O head module 
2
140NOC78000 distributed I/O head modules (not interlinked with the 140CRP31200 module 
3
distributed I/O clouds
Interlinking the 140NOC78000 Module in an Independent Distributed I/O Network
Interlink a 140NOC78000 distributed I/O head module with the 140NOC78100 control head module to provide Ethernet transparency between the isolated distributed I/O network [your existing distributed I/O network (5)] and the control network. You can also interlink another 140NOC78000 module with the 140CRP31200 remote I/O head module, but your existing distributed I/O network is not a physical part of the Quantum EIO device network (To configure the IP forwarding service in the 140NOC78100 module that provides transparency, refer to the Quantum EIO Control Network Installation and Configuration Guide. 
1
140CRP31200 remote I/O head module 
2
140NOC78000 distributed I/O head module (interlinked with the 140CRP31200 module to support the device network) 
3
140NOC78100 control head module 
4
140NOC78000 module (interlinked with the140NOC78100 module to support the independent distributed I/O network) 
5
independent distributed I/O network 
6
distributed I/O sub-ring 
7
DRSs with a predefined configuration file to support copper-to-fiber and fiber-to-copper transitions on the main ring 
8
distributed I/O cloud 
9
remote I/O drop on the main ring 
10
remote I/O sub-ring 
11
DRS connecting the remote I/O sub-ring to the main ring 
12
control network (which also monitors the independent distributed I/O network)
Interlinking the 140NOC78000 Module in an Extended Distributed I/O Network
Interlink a 140NOC78000 distributed I/O head module with the extended port of the 140NOC78100 control head module to provide Ethernet transparency between the isolated distributed I/O network [your existing distributed I/O network (4)] and the control network. Interlink the same 140NOC78000 module with the 140CRP31200 remote I/O head module for your existing distributed I/O network to be a physical part of the Quantum EIO device network. (To configure the service port for an extended network and to configure the IP forwarding service in the 140NOC78100 module that provides transparency, refer to the Quantum EIO Control Network Installation and Configuration Guide.) 
1
140CRP31200 remote I/O head module 
2
140NOC78000 distributed I/O head module (interlinked with the extend port of the 140NOC78100 module to support the extended distributed I/O network and also interlinked with the 140CRP31200 module to support the device network) 
3
140NOC78100 control head module (interlinked with the 140NOC78000 module to provide transparency between the device network and the control network) 
4
extended distributed I/O network 
5
distributed I/O sub-ring 
6
DRSs with a predefined configuration file to support copper-to-fiber and fiber-to-copper transitions on the main ring 
7
distributed I/O cloud 
8
remote I/O drop on the main ring 
9
remote I/O drops on the remote I/O sub-ring 
10
DRS connecting the remote I/O sub-ring to the main ring 
11
control network
NOTE: The types of distributed I/O topologies you can use in a Quantum EIO system are discussed at Selecting the Correct Distributed I/O Topology.
Interlinking the 140NOC78000 Module for Control Network Transparency
Interlink a 140NOC78100 control head module with a 140NOC78000 distributed I/O head module, which is interlinked with a 140CRP31200 remote I/O head module, to provide Ethernet transparency between the device network and the control network. 
1
140CRP31200 remote I/O head module 
2
140NOC78000 distributed I/O head module (interlinked with the 140NOC78100 module to support the device network) 
3
140NOC78100 control head module (interlinked with the 140NOC78000 module to provide Ethernet transparency between the control network and the device network) 
4
distributed I/O sub-ring 
5
DRSs with a predefined configuration file to support copper-to-fiber and fiber-to-copper transitions on the main ring 
6
distributed I/O cloud 
7
remote I/O drop on the main ring 
8
remote I/O drops on the remote I/O sub-ring 
9
DRS connecting the remote I/O sub-ring to the main ring 
10
control network 
11
main ring