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Preparing and Installing the Hardware
Configuration B1 - Internal SCSI Devices Only
2
If SCSI devices are to be attached internal to your system, and cabled for
easy change to configuration C1, proceed as follows. See Figure 2-14.
1. The MVMExxxx processor VMEmodule is not at one end of the cable,
so terminators must be removed from the P2 adapter module.
2. The MVME712M is at one end of the cable, so terminators must be
installed on the MVME712M.
3. Install the P2 adapter module on the rear of the backplane directly in
line with the P2 connector on the MVMExxxx. Be sure to orient pin 1 of
the adapter with pin 1 of the backplane connector.
4. Connect a user-supplied 50-conductor cable with compatible pinouts
(see Chapter 3) from connector J3 on the MVME712M to connector J3
on the P2 adapter and on to the internal SCSI devices. This cable must
be a continuous cable.
5. Terminators must be installed on the last SCSI device on the cable.
6. Attach the furnished 64-conductor cable, part number 30-W2514B02,
from connector J2 on the P2 adapter to connector J2 on the MVME712M.
Be sure to orient cable pin 1 with connector pin 1.
7. Insert the MVME712M module into the selected slots and tighten the
attaching screws, making good contact with the transverse mounting
rails to minimize RF emissions.
8. Make sure that cables will not be pinched by the cover and install the
cover that you previously removed.
9. Connect the power cable to the power source and turn the unit on.
10. Both yellow (DS1) and green (DS2) LEDs on the MVME712M should be
lit (the LEDs can be seen through the opening in the front panel). If not
lit, then either a cabling problem exists, a fuse is blown, or both.
If there is a cabling problem, then correct it. If not, check the fuse on the
P2 adapter module and on the MVMExxxx module, and replace if nec-
essary. The fuse on the P2 adapter module is for SCSI terminator pow-
er. The fuse on the MVMExxxx is for Ethernet transceiver power. The
resistance of each fuse should be less than 1 ohm.
2-22
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