User guide

WA_DEV_FEX20_UGD_002 Rev 004 March 08, 2011 64
Fastrack Xtend User Guide
Expansion Card
7.4.1.5. Extra Current Consumption from the DC-IN Source
Depending on various DC-IN voltages of the Fastrack Xtend, the extra current consumption drawn by
the Ethernet Expansion Card will also vary.
Table 48. Extra Current Consumption from DC-IN Source (Typical)
Condition
Extra Current Consumption for Additional
Feature (mA)
Fastrack Xtend Mode
Ethernet Feature
@4.75VDC
@13.2VDC
@32VDC
Connected
Enabled Idle
163mA
53.7mA
20.8mA
Non-Connected
Enabled Idle
171.7mA
49.6mA
24.0mA
On Communication
185mA
52.9mA
24.2mA
7.4.2. IO+GPS
The IO+GPS Expansion Card is interfaced with the Fastrack Xtend motherboard through the 50-pin
connector. All DC supplies are applied through this connector so no external supply is necessary.
With the Sierra Wireless Software Suite running, the Fastrack Xtend motherboard communicates with
the IO+GPS Expansion Card on UART2. The GPS module communicates on UART2 using the
following configuration:
 Baud rate: 57600 bps
 Character framing: 8 Data bits
 Parity: 1 Stop bit and Odd Parity
 Flow Control: No Flow Control
Figure 34. IO+GPS Expansion Card Architecture