Adaptec APA-358 MiniSCSI EPP Installation Manual Download | Manualshive

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APA-358 Installation Guide
Part Number: 510604-00, Rev. A
Print Spec Number: 492717-00
Current Date: 5/19/94

ECN Date: 5/31/94

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Installation Guide

APA-358 MiniSCSI EPP

Enhanced Parallel-to-SCSI Host Adapter

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Summary of Contents for APA-358 MiniSCSI EPP

Page 1: ...AA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AA AA A A A A A A A A A A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AA AA AA AA AA AA AA AA AA AA AA AA AA AA Installation Guide APA 358 MiniSCSI EPP Enhanced Parallel to SCSI Host Adapter ...

Page 2: ...der computer systems Both SCSI and paral lel printer interfaces may be operated simulta neously with no performance degradation Hardware Requirements The MiniSCSI EPP is designed to be as universally usable as possible but there are five primary hard ware compatibility requirements The parallel port must be standard i e have a fully IBM compatible hardware design includ ing all ground lines For hi...

Page 3: ...s up to 1 MBytes sec How is this achieved Current device drivers for parallel port peripherals require several instructions to be executed for each byte of data transferred With EPP each byte requires a single I O instruction sub stantially reducing overhead per byte These fea tures plus improved hardware design significantly improve the performance of parallel connected peripherals There is no ne...

Page 4: ...lation Hardware installation involves plugging the MiniSCSI EPP into a parallel printer port and con necting it to the applicable SCSI device s Follow the steps carefully in each subsection below to correctly install the MiniSCSI EPP 1 The 3BCh setting can only be used for bidirectional and unidirectional configura tions it is not applicable for EPP 2 Use the M switch to lower the transfer rate as...

Page 5: ...protection device commonly known as a dongle or other non printer product connected to it you should remove the device from your printer port and connect it to the printer passthrough connector on the MiniSCSI EPP If this arrangement causes any problems either the dongle or the MiniSCSI EPP must be relo cated to a different parallel port Connecting SCSI Peripherals 1 Connect the first SCSI device ...

Page 6: ...oth ends of the SCSI bus must be terminated See the following subsections for details on termination Terminating the Host Adapter MiniSCSI EPP termination is set to Enabled by default This setting cannot be changed Terminating SCSI Peripherals 1 Read the manufacturer s documentation to deter mine how to enable or disable termination on SCSI device s 2 Install or enable terminators on the last SCSI...

Page 7: ...nfiguration or switching is needed to use your printer For U S Residents Only Use the printer cable included in your kit to connect the MiniSCSI EPP to your printer This cable is shielded to comply with FCC mandated requirements for a Class B computing device Use of any other printer cable may result in noncompli ance with FCC shielding requirements and undesirable electronic interference with oth...

Page 8: ...between pin 38 and ground on the SCSI device s connector see SCSI Connector Pinouts Make sure the SCSI device s power is ON it should measure approximately 5 volts Very low or no voltage at pin 25 indicates a problem with termination power this condition disables the adapter Plug a printer into the printer passthrough port If the printer can print you have correct TERMPOWER No SCSI Functions in Us...

Page 9: ... computers modify the value of m first Set the switch to M08 to force EPP mode Then follow the tests in a through c If you dis cover problems modify the n value as explained in steps 1 through 3 After setting the switch perform the tests below to ensure the adapter is functioning properly a Perform a dir command on a hard disk drive and or a CD ROM drive Check if a problem is evident such as absur...

Page 10: ...SI EPP Be sure to follow the instructions in steps 1 and 2 to ensure compatibility Older Sharp Laptops Some older 8086 based Sharp laptops do not work properly with the MiniSCSI EPP or with other pro grams that use high speed parallel port data transfer such as LapLink or DeskLink from Traveling Software Sharp offers a free hardware upgrade for customers experiencing this problem contact your Shar...

Page 11: ...A telephone 714 261 1455 Adaptec Customer Support Services For information on software upgrades new releases technical advice and other topics call Adaptec s Electronic Bulletin Board Service BBS 24 hours a day at 408 945 7727 1200 2400 9600 14400 baud 8 data bits 1 stop bit no parity Pin Pin Alt 1 Internal Alt 2 External Function Function Alt 1 Internal Alt 2 External 1 1 Gnd DB0 2 26 3 2 Gnd DB1...

Page 12: ...on If this equipment does cause interference to radio or television equipment reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Move the equipment away from the receiver Plug the equipment into an outlet on a circuit different from that t...

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