FUJITSU MPB3052AT - Manual (Page 42)

C141-E045-02EN 3 - 11
06 B02
CSEL connected to the interface
Cable selection can be done by the
special interface cable.
B01 05
Figure 3.13 Jumper setting of Cable Select
Figures 3.14 and 3.15 show examples of cable selection using unique interface cables.
By connecting the CSEL of the master device to the CSEL Line (conductor) of the cable and
connecting it to ground further, the CSEL is set to low level. The device is identified as a
master device. At this time, the CSEL of the slave device does not have a conductor. Thus,
since the slave device is not connected to the CSEL conductor, the CSEL is set to high level.
The device is identified as a slave device.
Open
CSEL conductor
GND
Slave device Master device Host system
Figure 3.14 Example (1) of Cable Select
Slave device Master device
CSEL conductor
GND
Host system
Open
Figure 3.15 Example (2) of Cable Select