J6 and J7
The two RJ45 connections carry the external Ethernet path used by a computer or the VM600Mk2 communications arrangement.
Model Information
Within the VM600Mk2 platform, the Meggitt Vibro-Meter CPUM Mk2 600-050 is the rack controller and communications-processing module. It coordinates rack data and provides the controller-side path toward the system’s external communications connections.
Inside a VM600Mk2 rack, CPUM Mk2 600-050 exchanges data with measurement and interface cards through the rack backplane. Its J6 and J7 RJ45 connections carry the external Ethernet path to a computer or the VM600Mk2 communications arrangement.
The controller function of CPUM Mk2 600-050 is therefore separate from the channel hardware installed beside it. Measurement cards supply the channel data, while the CPUM Mk2 processes and presents that rack data through the communications path.
Technical Specifications
| Technical item |
|
|---|---|
| Brand | Meggitt Vibro-Meter |
| Product type | Rack controller and communications-processing module |
| Product family | VM600Mk2 |
| Part number | 600-050 |
| Card family | CPUM Mk2 |
| Rack interface | VM600Mk2 backplane |
| External connectors | J6 and J7 RJ45 |
| External link | Ethernet |
| Controller role | Central rack processing |
| Data source | Installed VM600Mk2 cards |
| Data destination | Computer or VM600Mk2 communications path |
| Rack compatibility | VM600Mk2 ABE04x system rack |
| Module width | Single-width module |
| Rack position | Front of rack, typically slot 0 |
| Paired position | IOCN Mk2 directly behind in the corresponding rear slot |
| Backplane connection | Two connectors per module |
| Fieldbus capacity | Up to 2 fieldbus interfaces |
| System Ethernet | 2 × 10/100/1000BASE-T(X), up to 1 Gbps |
| Configuration software | VibroSight software |
| Status and control | Alarm reset, security key and module status LEDs |
| Rack-side input | Data from installed VM600Mk2 cards |
| External path | Computer or VM600Mk2 communications route |
| Connected hardware | Measurement cards and IOCN Mk2 |
| Port distinction | J6/J7 external Ethernet; backplane internal |
Communication and Connectivity: CPUM Ethernet Path
CPUM Mk2 600-050 separates the rack-side card connection from the external Ethernet route.
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Backplane link
The rack backplane carries data between the CPUM Mk2 and the installed measurement and interface cards.
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Data direction
Rack data reaches the CPUM Mk2 first, then leaves through the configured external communications path.
Monitoring and Control: CPUM Rack Data
The controller function of CPUM Mk2 600-050 is to process the data presented by the VM600Mk2 rack.
Card data
Measurement and interface cards present their rack data through the backplane.
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Controller processing
The CPUM Mk2 handles that rack data before it is exposed to the external connection. -
System view
The external computer sees the rack through the CPUM Mk2 controller path rather than through a measurement card. -
Rack role
CPUM Mk2 600-050 remains the controller stage while the adjacent cards retain their own signal roles.
Frequently Asked Questions
What is the data path through CPUM Mk2 600-050?
CPUM Mk2 600-050 receives rack data through the VM600Mk2 backplane, processes it at the controller level and presents the configured external communications route. The measurement inputs remain on the installed measurement cards rather than on the controller card itself.
Why can an Ethernet link be active while CPUM Mk2 600-050 shows no channel data?
The J6/J7 Ethernet path is external to the rack, while the measurement cards reach CPUM Mk2 600-050 through the backplane. A live Ethernet link therefore does not prove that the card seating, rack population or internal data path is correct.
What do J6 and J7 connect to on CPUM Mk2 600-050?
To trace CPUM Mk2 600-050, j6 and J7 are RJ45 Ethernet connections used for the computer or VM600Mk2 network path. They are not sensor terminals, so a field signal should be traced to the appropriate measurement or interface card instead.
Which parts must be checked together with CPUM Mk2 600-050?
CPUM Mk2 600-050 does not choose the external protocol. Check the 600-050 controller identity, its VM600Mk2 backplane position and the installed IOCN Mk2 or measurement-card arrangement. Those three records explain the controller path, the interface path and the channel source separately.
Can CPUM Mk2 600-050 carry the field sensor wiring directly?
No. CPUM Mk2 600-050 is the rack controller and communications processing card. Field sensor wiring terminates on the configured measurement or input interface cards, whose data then reaches CPUM Mk2 through the backplane.
How should a communication fault on CPUM Mk2 600-050 be isolated?
During a CPUM Mk2 600-050 review, separate the check into the external Ethernet cable, the controller-to-backplane connection and the installed interface or measurement cards. This sequence prevents an external link fault from being confused with missing rack data.
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