Quad FXS Module User Manual (Rev C)

The FXS Quad and FXS Dual Voice option modules can be used with the ADTRAN TSU 100/120/600. The Quad FXS+ module provides four, 2-wire voice-grade interfaces serving as the source of line-current and ringing voltage to a telephone or station interface. The Dual FXS+ provides two, 2-wire voice-grade interfaces in either a plug-in or plug-on module. This manual is a thorough guide for installing and operating the modules.

Quad FXS Module User Manual (Rev C)

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