EXPRESS DAS
Installation and Operations Manual
EXPRESS DAS Installation and Operations Manual – Version 2.2 November 2013
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5.2.3
Remote Optic (R-OPT)
The Remote Optic module converts optical signals into RF signals and RF back to optical. The module
communicates with headend devices (the ODU and MDBU cards in the BIU) through an FSK modem. It
also features internal attenuation (ATT) to compensate for optical cable loss. The optical wavelength for
the downlink (Tx) path is 1310nm and for the uplink (Rx) path 1550nm. Transport is provided over a fiber
strand using WDM (Wavelength Division Multiplexing) technology.
5.2.4
Remote Central Processor Unit (RCPU)
The RCPU monitors and controls each module of the MRU and ARU. A USB (B-type) port connection
beneath the LED cover plate enables you to connect a PC and check device status through the SOLiD
software interface.
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