Phoenix International VL2-350-SC-DS, Техническая информация

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Scope
This chapter describes how to configure, install and operate the VL2-350-SC-DS mass storage subsystem module.
Drive Hardware Configuration
The drives on the VL2-350-SC-DS can be configured for normal operation as SCSI units 0-15 by setting the front panel
switches with a small screwdriver.(See Figure 1-1) The particular configuration of the Unit ID's required depends upon
the software and the application operating system.
Hard Disk Drive Hardware Configuration
The hard drive can be set so that it is activated by the SCSI unit 0-15 ID, as is required to maintain compatibility with the
SCSI software. The hard drive installed on the VL2-350-SC-DS utilizes the Ultra 320 SCSI interface. It is possible to
connect other Ultra 320 SCSI devices via the interface cable and to connect 14 other units to the SCSI interface if need-
ed.
Considerations For Installation
There are several considerations before installing the VL2-350-SC-DS into your system.
VMEbus Slot Requirements
The VL2-350-SC-DS requires two adjacent slots in a standard VMEbus 6U card cage. Since the drives are mounted on
an steel panel, this could potentially cause a shorting problem. If you are going to have a VMEbus card located in the
next adjacent slot, you should carefully check it to make sure that no leads are likely to touch the VL2-350-SC-DS .
VMEbus Backplane Configuration
The VMEbus P1 connector supplies all operating power to the VL2-350-SC-DS and shunts the daisy-chain signals on the
P1 connector. However, no other VME signals are connected on board. Therefore, you must check your VMEbus back-
plane for all daisy-chain signals continuity at the two slot positions occupied by the VL2-350-SC-DS .
Power Supply Requirements
Make sure that your VMEbus power supply has adequate capabilities to support the operation of the VL2-350-SC-DS
when it is installed with all other cards in your VMEbus system. Pay particular attention to the +12 volt power require-
ment. The specifications listed in Chapters 2 and 4 should be consulted for the maximum current requirements. Your
power supply must be capable of providing sufficient current for the hard disk drive motor(s) to spin up during initial oper-
ation (approximately 5 seconds).
Installing the VL2-350-SC-DS
Make sure that all power is removed from the backplane before inserting the boards. Prior to inserting the VL2-350-SC-
DS into the card cage, it is necessary to verify the cable connections to the SCSI host/processor. Once you have con-
nected and properly seated the associated cable assemblies, you should insert the host/processor into the VMEbus card
cage. Now install the VL2-350-SC-DS into the VME chassis and mate the P1 connector properly. The P2 connector
should also be aligned. Then connect the VL2-350-SC-DS to the SCSI host/processor with a 68 pin Micro-D cable or via
the P2 connector on the backplane with the proper Phoenix International adapter module.
Configuration, Installation, and Operation 3- 3