User`s manual
Specifications 19
cPCI-3920
DB-3920L2 Daughter Board Components Layout
The DB-3920L2 Daughter Board extends the cPCI-3920 from
4HP (cPCI-3920A) to 8HP (cPCI-3920B) version. This addi-
tional capability opens up the broadest range of expansion pos-
sibilities. The DB-3920L2 module has been designed to include
two COM ports, a PS/2 keyboard and mouse port, two USB 2.0
interfaces and a 2.5” SATA hard disk interface.
Figure 2-5: DB-3920L2 Daughter Board Layout
CN1-2 Serial port CN5-2 USB port
CN2-2 PS/2 Keyboard/ Mouse CN6-2 Serial port
CN3-2 Serial ATA connector SW COM4 mode switches
CN4-2 USB port
CN1-2
CN2-2
CN4-2
CN5-2
CN6-2
CN3-2
S
W