Alpha Microsystems Eagle 100 Specifikace stáhnout pdf (Strana 15)

Page 1-10 Compatibility and Board Setup

1.9AM-174 ROADRUNNER BOARD CONFIGURATION

The illustration below shows the AM-174 board configured as shipped by Alpha Micro.

The only user configurable jumpers on this board are JP1 & JP2 for SCSI termination,

and JP11, JP12, and JP13 for memory configuration. These jumpers only need to be

reconfigured if your system has a unique termination requirement, or if you change the

amount of memory installed on your Roadrunner. All other jumpers on the board should

be left in their factory configured positions. All possible configurations for the memory

jumpers are shown in the illustration. Refer to Appendix A for more details on SCSI bus

termination and termination power.

NCR

ALPHA

MICROSYSTEMS

ALPHA MICROSYSTEMS AM-174

JP7

JP2 JP1

J2 J3

JP17

JP9

JP10

040

JP6

JP13JP11JP12

JP1

JP2 SET TO PINS 1 AND 2 = TERMPOWER DISABLED

JP2 SET TO PINS 2 AND 3 = TERMPOWER ENABLED (FACTORY DEFAULT)

JP1 SET TO PINS 1 AND 2 = SCSI BUS ACTIVE TERMINATION ENABLED (FACTORY DEFAULT)

JP1 SET TO PINS 2 AND 3 = SCSI BUS ACTIVE TERMINATION DISABLED

OSCILLATOR JUMPER (DO NOT REMOVE)

OSCILLATOR JUMPERS

(DO NOT REMOVE OR RECONFIGURE)

X-BUS

CONNECTORS

50-PIN SCSI

CONNECTOR

BOOT PROM

MEMORY SIMM CONNECTOR

X-BUS ACTIVE TERMINATION

PIN-1 INDICATOR

JP13JP11JP12

4MB

8MB 16MB 32MB 64MB

JP13JP11JP12

MEMORY CONFIGURATION JUMPERS

JP2

INDICATES PIN-1

FOR ALL CONNECTORS

FACTORY USE ONLY, NO JUMPERS INSTALLED

IN = ENABLED (FACTORY DEFAULT)

OUT = DISABLED

MC1057

JP16

JP14

JP15

AM-174 Board Configuration

PDI-00172-60, Rev. A02

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 88 89

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