TN771DP Maintenance Test Card
Certified Refurbished: $69.00
- Performs maintenance functions for Definity
- Functions include Packet Bus reconfiguration that allows diagnosis and correction of recoverable Packet Bus failures before Link Access Procedure on the D-Channel (LAPD) links fail - ISDN - PRI testing that originates and terminates loopback tests on ISDN facilities
- TN 771DP is required in all standard reliability Primary Port Networks (PPNs) and critical reliability Expansion Port Networks (EPNs).
- All standard reliability PPNs when packet endpoints (BRI and/or ASAI) are supported
- The TN771DP circuit pack can be updated using the firmware download feature, which requires use of the TN799 C-LAN circuit pack interface