Quatech 802.11B/G Especificaciones descargar pdf (Pagina 55)

C – WLN Ethernet Bridge

100-8004-102G Airborne Wireless LAN Node Module Data Book

Page 49

Quatech, Inc. Confidential

C.3 STATUS PORTS SIGNAL ASSIGNMENT

Table 21. WLN Ethernet Module Status Ports

Pin Signal Status Description

25 F0 POST Bridge passed Power-On-Self-Test, ready for operation

27 F2 RF LINK Bridge has associated with an AP or ad hoc peer

26 F3 CONFIG Bridge has obtained an IP address via DHCP or provided as

Static

23 F6 CONNECT A TCP socket connection from a WLAN or wired Client device

has been made with the Bridge’s TCP/IP stack

35 /RF_LED RADIO

ACTIVITY

Blinks when radio is not connected and is scanning

Solidly on when radio is connected or associated

C.4 DESIGN GUIDELINES

In addition to the Design Guidelines specified for the Wireless LAN Node Module, the Ethernet Bridge

Module should adhere to the following design guidelines:

• Make sure that NO copper and traces on all layers are present under the magnetics –prevents

magnetic induction into the circuitry.

• Place R5 as close to the magnetics as possible.

• Place R1-R4 as close to module as possible.

• All traces to and from the magnetics should be designed for an impedance of 100Ω.

• Keep the transmit traces separated from the receive traces, and where possible place the one or

the other end on a different layer.

• Route differential pairs together and keep them parallel to one another. Also, do not separate

them around parts or across PCB layers.

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Quatech 802.11B/G Especificaciones Pagina 55