Avaya Definity TN573B Switch-Node Interface Refurbished
Store #: 5191-R
Manufacturer Part No: 73650
Trade in & Save
Free Shipping on all orders!
Most orders ship within 1 business day.
- Routes circuit, packet, and control messages
- Installed in a SN carrier in a CSS that terminates a fiber optic link from a SNI in another SN carrier, and EI in a PPN, and an EI in an EPN
- One TN573B is used per PN and supports the TN574 DS1 converter circuit pack
- TN573B and higher provides an interface to the single-mode fiber optic transceiver and supports the TN1654 and TN574 DS1 converter circuit pack
If you want to buy a certain quantity and want a volume discount, submit this form and a sales advisor will be in touch with you shortly.
Looking for a manual for your product?
Check out our free product manual directory by clicking here.
Needs to find a local technician to service your equipment?
Our map of local technicians can help you find experts in your area that can help. Click here to view map
Need help adjusting the time?
We provide a tutorial on setting the clock on major phone system brands here.
Need to contact the product manufacturer? click here
to see a directory of their phone numbers.