Quick view Adtran | sku: 1204004L2 Adtran ISDN BRI DBU Module IQ TSU (1204004L2) MSRP: $105.99 Now: $87.99 Choose Options Quick view Adtran ISDN BRI DBU Module IQ TSU (1204004L2) The Adtran 1204004L2 provides 2B+D ISDN BRI dial backup via RJ-45 U-interface (1B+D in IQ 310 with 56/64k DDS NIM). The module re-establishes physical layer and Frame Relay signaling in the event of primary link failure, loss of LMI, or loss of PVC... MSRP: $105.99 Now: $87.99 Choose Options Previous 1 2 Previous 1 2 Compare Selected × OK
Quick view Adtran ISDN BRI DBU Module IQ TSU (1204004L2) The Adtran 1204004L2 provides 2B+D ISDN BRI dial backup via RJ-45 U-interface (1B+D in IQ 310 with 56/64k DDS NIM). The module re-establishes physical layer and Frame Relay signaling in the event of primary link failure, loss of LMI, or loss of PVC... MSRP: $105.99 Now: $87.99 Choose Options Previous 1 2 Previous 1 2 Compare Selected
