User's Manual

SiteWERX User Manual WirelessWerx
SiteWERX 1June 09
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2.1.5 Development/Programming Interface
The SLN is programmed using a dedicated four-wire serial peripheral interface (SPI).
The SPI is also used for real-time debugging / development, and is connected to a
PC parallel port via connector and cable assembly made by WirelessWERX.
2.1.6 Status Indicators
The SLN has two LED status indicators. One RED LED is illuminated when power is
on. A second GREEN LED is illuminated when the Network status is positive.
2.1.7 Enclosure
The SLN assembly consists of a PCB mounted in an enclosure 3.0” x 2.5” x 1.5’’.
The enclosure material is Polylac-747, an ABS. The enclosure wall thickness is as
thin as practical to minimize Radio Frequency signal attenuation and reflections.
2.1.8 Environment
The SLN allowable environments for operating and storage are as follows:
Operating Temperature -40 to +70 C
Storage Temperature -40 to +85 C
Operating Humidity 5% to 80% RH, non-condensing