| TN570B Expansion Interface |
 TN570B Expansion Interface Like New: Quantity This product is eligible for 2 Year Platinum Protection! TN570B Features The TN570B provides an interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets Used in a Port Network (PN) between a PN and another PN in a direct-connect system and a PN and an SNI in a switch node carrier in a CSS-connected system Provides control channel applications and time-slot interchanging between the PPN and EPNs Used when ISDN-BRI and/or ASAI is connected in an EPN Used in R7si/r or later systems Price: 29.99 |