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34 CommPlete 4000 Communications Server User Guide

Appendices

Hard Disk Connector

This connector supplies hard disk drive signals which interface with the software I/O drivers to

provide the read/write functions.

Figure A-7. Hard Disk Connector

Pin Description Pin Description

1 /Reset 21 NC

2 Ground (GND) 22 Ground (GND)

3 Data Bit 7 (SD7) 23 -I/O Write (-IOW)

4 Data Bit 8 (SD8) 24 Ground (GND)

5 Data Bit 6 (SD6) 25 -I/O Read (-IOR)

6 Data Bit 9 (SD9) 26 Ground (GND)

7 Data Bit 5 (SD5) 27 IOCHRDY

8 Data Bit 10 (SD10) 28 ALE\

9 Data Bit 4 (SD4) 29 NC

10 Data Bit 11 (SD11) 30 Ground (GND)

11 Data Bit 3 (SD3) 31 IRQ14

12 Data Bit 12 (SD12) 32 /IOCS16

13 Data Bit 2 (SD2) 33 Address Bit 1 (SA1)

14 Data Bit 13 (SD13) 34 NC

15 Data Bit 1 (SD1) 35 Address Bit 0 (SA0)

16 Data Bit 14 (SD14) 36 Address Bit 2 (SA2)

17 Data Bit 0 (SD0) 37 Chip Select 0 (-CS0)

18 Data Bit 15 (SD15) 38 Chip Select 1 (-CS1)

19 Ground (GND) 39 /HDLED

20 NC 40 Ground (GND)

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 40

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Multi-Tech Systems Hub Manuel d'utilisateur Page 34