AT&T TN777B R12 V21 Network Controller

SKU 103818 Refurbished (Grading Guide)

15,000+

★★★★★

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Overview Policies

Item Information

The TN777B Network Controller delivers control channel messages between distributed networks of port circuit packs on the TDM bus and processor circuit pack. Information is routed between 4 data channels directly from the processor circuit pack to the customer connected equipment.

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

Included

TN777B Network Controller

These items have been refurbished. Refurbished items have been cleaned, tested, and confirmed to be fully functional. Grade A - Refurbished items show wear from consistent use and can have some scratches and may have some yellowing or discoloration.

No Hassle Return Policy & PC Certified Guarantee

Rest assured, if you order the wrong items, don't like the model, or just don't need it anymore we accept returns with NO restocking fees. Whether you want something different or just a credit, we have you covered! This policy goes hand in hand with our company culture of delivering outstanding customer satisfaction.

If you need assistance finding a different product our awesome staff is ready to help. Contact us for expert support.

Item(s) must be returned within 30 days from invoice date.
Item(s) must be received in original condition preferably in the same packing materials.
Item(s) should be securely packed for safe return.
The purchaser is responsible for all shipping costs and insurance.

Shipping

Products usually ship within two business days after payment. If you have a rush order, or need an item delivered on Saturday please call to request faster shipping.
All products are shipped and delivered on business days.
Fixed or free shipping offer does not apply to items shipped on pallets, please call for rates on those items. Free shipping offers only apply to the continental US.

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