Used Discontinued Adtran 1200080L1#HS TSU Dual FXS Plug-InModule
- Two RJ-11 2-wire analog voice ports
- Operates in FXS (loop or ground start), PLAR, or tandemaccess (MEGACOM) modes up to 10,000 feet at 26-gauge
- Provides ring back and dial tone
- Compatible with any voice or data plug-on board
- Passes message waiting indication when used with the TSUDual FXO module
- Provides four ports per expansion slot when used inconjunction with the TSU Dual FXS Plus (Plug-On) module
- Hot swappable
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