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Functional Description
2.3.4
Serial Interface Expansion Connector and Pinout
The serial interface expansion connector provides the capability to add different front end inter-
faces to the UART B signals. For example, the available opto-isolated RS422/485 module,
CP320-TR1, may be plugged into this connector.
Figure 2-2: Serial I/F (CON3) Connec-
tor
11
1
2.3.5
PCI Expansion Connector and Pinout
The PCI Expansion Connector (CON11) provides the possibility to mount several PCI mezza-
nine boards above the CP321 for adding additional functionality which is not provided on the
CP321 main board or on the CPCI bus. All the PCI signals of the onboard PCI bus (32-bit, 33
MHz) are routed to this connector so that a complete PCI bus is provided to the mezzanine
board with almost the same number of ground and power pins (3.3V, 5V, and V(I/O)) as are on
a CPCI J1 or PMC connector. In addition to the PCI signals, I²C signals are also routed to this
connector.
Examples of PCI expansion boards are:
• PMC carrier
• PC-MIP carrier
• IO board with second Ethernet interface, SCSI etc.
Figure 2-2: PCI Expansion Connector (CON11)
1
2
A table showing the pinout of the PCI Expansion connector appears on the following pages.
Page 2 - 12
12
2
© 2003 Kontron Modular Computers GmbH
Table 2-6: Serial I/F Expansion
Connector (CON3) Pinout
SIGNAL
PIN
+3.3V
11
SCL
9
CTS
7
RxD
5
RE
3
GND
1
CP321
PIN
SIGNAL
12
VCC
10
SDA
8
DTR
6
TxD
4
DE
2
RTSB
99
100
ID 24977, Rev. 02
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