10 cable interfaces, 1 the hard disk cable 44pin, Cable interfaces – Compaq MSB900 User Manual
Page 55: The hard disk cable 44pin, Able, Nterfaces
DIGITAL-LOGIC AG
MSB900/L Detailed Technical Manual V1.0
55
10. C
ABLE
I
NTERFACES
10.1. The Hard Disk Cable 44pin
IDT Terminal for Dual Row (2.00mm grid) and 1.00mm flat cable; 44pins = 40pins signal and 4pins power.
1
1 2
43
43
44
44
39
39
40
40
2
Max. length for the IDE cable is 30cm.
Attention!
Check the pin 1 marker of the cable and the connector before you power-on. Refer to the tech-
nical manual of the installed drives because a wrong cable will immediately destroy the drive
and/or the MICROSPACE MSB900/L board. In this case the warranty is void! Without the tech-
nical manual you may not connect this type of drive.
The 44pin IDE connector on the drives is normally composed of the 44 pins, 2 open pins and 4
test pins, 50 pins in total. Leave the 4 test pins unconnected.
1 3
43
a b
c d
Testpin
open pin
44pin IDE Interface with integrated power lines