DESCRIPTION
AVAYA TN570D DEFINITY EXPANSION INTERFACE MODULE
Technical specifications
Provides 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 between 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 Carries circuit-switched data, packet-switched data, network control, timing control, and DS1 control Communicates with the TN775B maintenance circuit pack in an EPN to send the EPN environmental and alarm status to the SPE
# Provides 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 between 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
