RN131C/RM Roving Networks, RN131C/RM Datasheet - Page 12

• Manufacturer Part Number: RN131C/RM
• Description: WiFi / 802.11 Modules WiFly GSX 802.11b/g Mod Commercial Temp
• Manufacturer: Roving Networks

Specifications of RN131C/RM

• Product Category: WiFi / 802.11 Modules
• Rohs: yes
• Protocol Supported: 802.11 b/g
• Frequency Band: 2.4 GHz
• Data Rate: 11 Mbps, 54 Mbps
• Interface Type: SPI, UART
• Transmit Power (max): 18 dBm
• Antenna Connector Type: Chip, U.FL
• Operating Supply Voltage: 3.3 V
• Supply Current Transmitting: 210 mA
• Supply Current Receiving: 40 mA
• Maximum Operating Temperature: + 70 C
• Dimensions: 38 mm x 20 mm x 4 mm
• Minimum Operating Temperature: 0 C
• Modulation Technique: DSSS, OFDM
• Security: WEP, WPA, WPA2

Connection Status
GPIO4, GPIO5, and GPIO6 drive status the LEDs.
Keep-Out Areas
When designing your PCB avoid exposed traces and vias beneath the module. Figure 11 shows areas on the module that
should be kept clear.
Figure 11. Keep Out Areas
8.0 mm
Powering the Module
The module can be powered from either 3.0-V DC batteries or 3.3-V DC regulated power.
For 3.3-V DC power:
www.rovingnetworks.com
For 3.0-V DC battery power:
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GPIO4 indicates the TCP/IP connection status. This signal is on high for an active connection, toggles fast to
indicate no IP address, and toggles slowly to indicate that the IP address is OK but not connected.
GPIO6 indicates the association status. High means the module is not associated with a network, off indicates
that it is associated and Internet access is OK.
GPIO5 toggles when data is transferred.
Apply power to pin 20 (VDD-BATT).
Short pin 17 (3.3 V REG-OUT) to pin 18 (3.3 V REG-IN) (battery boost mode).
150 mA of current at 3.3 V is available for external devices on pin 21 when the module is in battery boost mode.
Apply power to pin 20 (VDD-BATT) and pin 21 (VDD-IN).
Connect pin 18 (3.3 V REG-IN) to ground and leave pin 17 (3.3 V REG-OUT) unconnected.
6 mm
5 mm
3 mm
Keep Out Areas. There are two 1-mm round
test pads on the bottom of the module. Avoid
placing exposed traces or vias in these areas.
Version 3.2r 4/9/2012
RN -13 1-DS
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