Specifications
Functional Description
30-Dec-2010 CM-X300 Reference Guide Rev 1.31 21
3.3.2.1 Wireless LAN Specifications
The CM-X300‘s wireless LAN‘s 802.11b RF specifications are listed in Table 10; 802.11g
specs in Table 11.
Table 10 b RF System Specifications
Parameter
Test Condition
Typical Value
Units
Transmit Power Output
15
dBm
Receive Sensitivity
1 Mbps, 8% PER
-90
dBm
2 Mbps, 8% PER
-90
dBm
5.5 Mbps, 8% PER
-90
dBm
11 Mbps, 8% PER
-88
dBm
Maximum Receive Level
PER<8%
IEEE Compliant
dBm
Transmit Frequency Offset
Low, Middle, High Channels
±10
PPM
Spectral Mask
Max. TX Power
-40@fc±11MHz
dBc
-60@fc±22MHz
Error Vector Magnitude
Max. TX Power @ 11Mbps
-36
dB
Carrier Suppression
Max. TX Power
-25
dBc
Adjacent Channel Rejection
Desired channel is 3dB above
sensitivity, 11Mbps, PER<8%
48
dBc
Table 11 g RF System Specifications
Parameter
Test Condition
Typical Value
Units
Transmit Power Output
15
dBm
Receive Sensitivity
6 Mbps, 10% PER
-90
dBm
9 Mbps, 10% PER
-88
dBm
12 Mbps, 10% PER
-88
dBm
18 Mbps, 10% PER
-87
dBm
24 Mbps, 10% PER
-83
dBm
36 Mbps, 10% PER
-80
dBm
48 Mbps, 10% PER
-75
dBm
54 Mbps, 10% PER
-74
dBm
Maximum Receive Level
PER<10%
IEEE Compliant
dBm
Transmit Frequency Offset
Low, Middle, High Channels
±10
PPM
Spectral Mask
Max. TX Power
-30@fc±11MHz
dBc
-40@fc±20MHz
-50@fc±30MHz
Error Vector Magnitude
Max. TX Power @ 11Mbps
-29
dB
Carrier Suppression
Max. TX Power
-25
dBc
Adjacent Channel Rejection
Desired channel is 3dB above
sensitivity, 11Mbps, PER<8%
15
dBc
3.3.2.2 WLAN Antenna Configuration
The CM-X300 provides two possible WLAN antenna configurations. By default, an
onboard WLAN antenna ANT2 is assembled. There is also a U.FL socket, J3, for
connecting an external 2.4GHz antenna. See the CM-X300 Top View Diagram on page 13.
For the best performance, the onboard antenna should be disconnected if an external
antenna is in use. This may be accomplished by disassembling the serial 0R resistor R60.
3.3.3 Bluetooth
The CM-X300 features a CRS BC04-ROM Bluetooth solution. The BC04-ROM
communicates with the CPU by means of the CPU‘s USB Full-Speed Host interface via the
USB Host Controller. Therefore, on CM-X300 module configurations with the ‗W‘ option
the USB host interface (USB1) is not available on the CAMI.