Motorola MVME712-13 Manuel de service télécharger pdf (Page 44)

2-28 Computer Group Literature Center Web Site

Preparing and Installing the Hardware

Configuration C1 - Internal and External SCSI Devices

If SCSI devices are to be attached internal and external to your system and the

internal SCSI device is at one end of the cable, proceed as follows. See Figure 2-16.

1. The MVMExxxx is not at one end of the cable, so terminators must

be removed from the P2 adapter module.

2. The MVME712M is not at one end of the cable, so terminators must

be removed from the MVME712M.

3. Install the P2 adapter module to 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 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 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. Connect a user-supplied 50-conductor cable with compatible

pinouts from the SCSI connector on the front panel of the

MVME712M to the external SCSI devices.

9. Terminators must be installed on the last SCSI device on the cable.

10. Make sure that cables will not be pinched by the cover and install

the cover that you previously removed.

11. Connect the power cable to the AC power source and turn the unit

on.

12. Both LEDs (DS1 and DS2) 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 it is a cabling problem, then fix it. If not, check the fuse on the P2

adapter module and on the MVMExxxx module, and replace if

necessary. The fuse on the P2 adapter module is for SCSI terminator

power. The fuse on the MVMExxxx is for Ethernet transceiver

power. The resistance of each fuse should be less than 1 ohm.

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Motorola MVME712-13 Manuel de service Page 44