Multi-Tech Systems RAS96 - Manual (Page 74)

RAS96 RASCard User Guide
CommPlete Communications Server 66
IDE Connector (J21)
This connector supplies IDE data and signals for an IDE CD-ROM drive or a second
hard disk.
Figure A-7. IDE connector.
Pin Description Pin Description Pin Description
1 /Reset 15 Data Bit 1 (SD1) 29 NC
2 Ground (GND) 16 Data Bit 14 (SD14) 30 Ground (GND)
3 Data Bit 7 (SD7) 17 Data Bit 0 (SD0) 31 IRQ14
4 Data Bit 8 (SD8) 18 Data Bit 15 (SD15) 32 /IOCS16
5 Data Bit 6 (SD6) 19 Ground (GND) 33 Address Bit 1 (SA1)
6 Data Bit 9 (SD9) 20 NC 34 NC
7 Data Bit 5 (SD5) 21 NC 35 Address Bit 0 (SA0)
8 Data Bit 10 (SD10) 22 Ground (GND) 36 Address Bit 2 (SA2)
9 Data Bit 4 (SD4) 23 -I/O Write (-IOW) 37 Chip Select 0 (-CS0)
10 Data Bit 11 (SD11) 24 Ground (GND) 38 Chip Select 1 (-CS1)
11 Data Bit 3 (SD3) 25 -I/O Read (-IOR) 39 /HDLED
12 Data Bit 12 (SD12) 26 Ground (GND) 40 Ground (GND)
13 Data Bit 2 (SD2) 27 IOCHRDY
14 Data Bit 13 (SD13) 28 ALE\