ADTRAN FSU 5622 ESP DUAL FXS FRAD 1200188L1 CARD REFURBISHED For Sale
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The FXS module provides two 2-wire compressed voice inter-faces and serves as the source of line current and ringing voltage.The ESP FXS serves as the station side of a foreign exchange FXS/FXO application. The FXS may also be paired with another FXS to provide private line automatic ring down (PLAR) function across the WAN. The FSU 5622 dual FXS ESP frame relay service unit module cardfor FSU 5622standalone unit is refurbished and comes with a 90 daywarranty.
