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PC/104-Plus – COM-1460 Module 17
J7, J8, J9 for Firewire
Each of the Firewire ports - compliant with the IEEE 1394 OHCI standard - is a high speed bus that supports
data transfer rates up to 400Mbps (100/200/400 Mbps selectable) and delivers more than 30 times the
bandwidth of the popular USB peripheral standard. Each of these ports can be used to connect up to 63
external devices, support “hot plug-and-play” and provide power supply to peripherals through an internal
DC/DC converter (that is specifically used to isolate power between the physical layer and the host
computer). The Firewire bus is Power Class 1.
Firewire3 Firewire2 Firewire1
J9 J8 J7
Figure 7. Firewire ports
J10 for Main Power
J10 is a 4-pin with 2.54-mm step connector that implements the Main Power supply function.
You must provide power to the COM-1460 module before using the Firewire ports.
Main Powe
r
J10
Figure 8. Main Power connector
The connector pinout is given below.
Table 3. J10 connector pinout
Pin Signal
1
+8 - +40V
2
GND
3
GND
4
-