Functional Description
EBC2
Page 2 - 20
© 2005 Kontron Modular Computers GmbH
ID 29022, Rev. 01
26873
.02.VC.050120/135424
P R E L I M I N A R Y
2.3.3
Communications Interface
The Communications Interface Connector J24 (P3), is used to provide a set of standard com-
munications interfaces. In the case of the EBC2, there are three types of interfaces provided:
four high speed serial interfaces, two Fast Ethernet interfaces, and two CAN interfaces.
All of these interfaces are provided on the Communications Interface J24 (P3) connector (an
80-pin, HIROSE FX8C-80S-SV connector).
The following figure and table provide pinout information for J24 (P3).
Figure 2-8: J24 -
Communications Interface
Connector (CI)
Table 2-14: Pinout of J24 (P3) Connector
SIGNAL PIN PIN SIGNAL
SIGNAL PIN PIN
SIGNAL
GND
1
2 GND
CAN1_TXD0 41 42 CAN1_RXD0
SER_DSR1/
TCLK1
3
4 SER_RI1/
RCLK1
CAN1_TXD1 43 44 CAN1_RXD1
SER_RTS1
5
6 SER_CTS1
GND
45 46 GND
SER_TXD1
7
8 SER_RXD1
NC
47 48 NC
SER_DTR1
9
10 SER_CD1
ETH2_LINK
49 50 NC
GND
11 12 SER_RI2/
RCLK2
ETH2_ACT
51 52 ETH2_SPEED
SER_DSR2/
TCLK2
13 14 SER_CTS2
NC
53 54 GND
SER_RTS2
15 16 SER_RXD2
NC
55 56 NC
SER_TXD2
17 18 SER_CD2
NC
57 58 NC
SER_DTR2
19 20 SER_RI3/
RCLK3
ETH2_T-
59 60 ETH2_R-
SER_DSR3/
TCLK3
21 22 GND
61 62
SER_RTS3/
TXFRAME3
23 24 SER_CTS3/
RXFRAME3
+2.5V_EB
63 64 +2.5V_EB
SER_TXD3
25 26 SER_RXD3
NC
65 66 NC
SER_DTR3
27 28 SER_CD3
NC
67 68 NC
SER_DSR4/
TCLK4
29 30 SER_RI4/
RCLK4
ETH1_T-
69 70 ETH1_R-
SER_RTS4/
TXFRAME4
31 32 SER_CTS4/
RXFRAME4
71 72
SER_TXD4
33 34 SER_RXD4
GND
73 74 NC
SER_DTR4
35 36 SER_CD4
ETH1_LINK
75 76 NC
CAN2_TXD0 37 38 CAN2_RXD0
ETH1_ACT
77 78 ETH1_SPEED
CAN2_TXD1 39 40 CAN2_RXD1
GND
79 80 GND
2
80
79
1