3 - 14 VM600 MPS hardware manual (standard version) MAMPS-HW/E
Edition 17 - February 2018
VM600 6U 19" rack backplane (ABE04x)
GENERAL SYSTEM DESCRIPTION
3.4.4 Raw Bus
The Raw Bus contains 64 parallel bus lines, arranged as 32 differential line pairs. The
ABE04x system rack contains a single bus of this type which is common to all cards located
in slots 1 to 18 (see Figure 3-6). As such, this is a flexible bus allowing the transfer of data
between various cards in the rack (see Figure 3-6). Its principal applications are to:
• Share raw analog signals input on channels 1 to 4 of an IOC4T card with other cards in
the rack (for example, to CMC16, XMC16 or XMV16 cards installed in a rack featuring
both MPS and CMS hardware). An example of this is shown in Figure 3-8.
NOTE: The XMVS16 card has the same capabilities and features as the XMV16 card,
except that the XMVS16 cannot access and therefore cannot configure
anything on the VM600 raw bus.
Use of the Raw Bus for this purpose is described further in 9.11 Using the Raw Bus to
share measurement channel inputs.
• Supplement the OC Bus by allowing additional alarm signals to be routed to the relays
on an IRC4 or RLC16 card.
Use of the Raw Bus for this purpose is described further in 9.12.2 Using the Raw Bus to
switch relays and 10.8.2 Using the Raw Bus to switch relays.
Signals are placed on the Raw Bus by setting jumpers on an IOC4T (see Figure 3-8). If the
signals are required by a CMC16 card, the appropriate switches must also be set on the
corresponding IOC16T card.
If the signals are required by a XMC16 or XMV16 card, the corresponding XIO16T card is
configured using the VibroSight
®
software (that is, the XIO16T hardware is fully software
configurable).
IOC4T #A IOC4T #B IOC16T #A
Jumper
matrix
Jumper
matrix
Switches
Figure 3-8: Use of the Raw Bus to transfer analog signals between cards
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