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TN777B Network Controller

Like New: $49.00
This product is eligible for 2 Year Platinum Protection!

TN777B Features

  • Communicates control channel messages between the processor circuit pack and the distributed network of port circuit packs on the TDM bus
  • Controls 4 data channels that process and route information directly from the processor circuit pack to customer connected equipment
  • Has time of day clock with battery back for power failure or low voltage conditions
  • Monitors the status of the system clocks and alerts the processor circuit pack in the event of a failure of any clock
  • Also supports ISDN
  • Replaced by TN794 Network Control/Packet interface for R7 and R8
  • Replaced by TN2401 Network Control/Packet interface for R9 and R10

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