Fujitsu MPD3173AT Product Manual - Page 39

Cable configuration

Page 39 highlights

Pin 40 (Ground) Pin 34 Pin 30 (Ground) Pin 26 (Ground) Pin 24 (Ground) Pin 22 (Ground) Pin 19 (Ground) Pin 2 (Ground) 254.0 to 457.2 mm (10 to 18 inch) 127.0 to 304.8 mm 101.6 to 152.4 mm (5 to 12 inch) (4 to 6 inch) open Symbolizes Pin 34 Conductor being cut Position 1 Pin 34 contact (PDIAG-:CBLID- signal) System Board Connector Connector 1 Figure 3.10 Cable configuration Connector 2 b) Host system that do not support Ultra DMA modes greater than mode 2 shall not connect to the PDIAG-:CBLID- signal. c) Host system that do support Ultra DMA modes greater than mode 2 shall either connect directly to the device without using a cable assembly, or determine the cable assembly type. Determining the cable assembly type may be done either by the host sensing the condition of the PDIAG-:CBLID- signal (see Figure 3.11), or by relying on information from the device (see Figure 3.12). Hosts that rely on information from the device shall have a 0.047 µF capacitor connected from the PDIAG-:CBLID- signal to ground. The tolerance on this capacitor shall be 20% or less. 3 - 10 C141-E069-02EN

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C141-E069-02EN
3 - 10
open
Connector 2
Connector 1
System Board
Connector
Pin
2 (Ground)
Pin 19 (Ground)
Pin 22 (Ground)
Pin 24 (Ground)
Pin 26 (Ground)
Position 1
Pin 34 contact
(PDIAG-:CBLID- signal)
254.0 to 457.2 mm
(10 to 18 inch)
101.6 to 152.4 mm
(4 to 6 inch)
127.0 to 304.8 mm
(5 to 12 inch)
Symbolizes Pin 34
Conductor being cut
Pin 30 (Ground)
Pin 34
Pin 40 (Ground)
Figure 3.10
Cable configuration
b)
Host system that do not support Ultra DMA modes greater than mode 2 shall not connect
to the PDIAG-:CBLID- signal.
c)
Host system that do support Ultra DMA modes greater than mode 2 shall either connect
directly to the device without using a cable assembly, or determine the cable assembly
type.
Determining the cable assembly type may be done either by the host sensing the
condition of the PDIAG-:CBLID- signal (see Figure 3.11), or by relying on information
from the device (see Figure 3.12).
Hosts that rely on information from the device shall
have a 0.047
μ
F capacitor connected from the PDIAG-:CBLID- signal to ground.
The
tolerance on this capacitor shall be 20% or less.