Avaya TN570D Expansion Interface V5
- Provides an interface
- Supports control channel applications
- The TN570D 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
- These items have been refurbished
- Refurbished items have been cleaned, tested, and confirmed to be fully functional
- These items may have minor blemishes on their housings which cannot be removed during the refurbishing process
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.
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- 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.
- 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.