


Avaya Definity TN556B ISDN BRI 4-Wire Interface Circuit Pack - Refurbished
Features:
Ports connection to ISDN-BRI terminals: 12
Signal leads: TXT, TXR, PXT, and PXR
Up to 8 ports can be used for ASAI links
2 B-channels
1 D-channel
Range up to 3300 ft.
Compatible with Definity R7 or late
Requires a packet control circuit pack (TN778) if using R6si systems
WARRANTY: 90-DAY REPLACEMENT WARRANTY / FINAL SALE
Features:
Ports connection to ISDN-BRI terminals: 12
Signal leads: TXT, TXR, PXT, and PXR
Up to 8 ports can be used for ASAI links
2 B-channels
1 D-channel
Range up to 3300 ft.
Compatible with Definity R7 or late
Requires a packet control circuit pack (TN778) if using R6si systems
WARRANTY: 90-DAY REPLACEMENT WARRANTY / FINAL SALE
Features:
Ports connection to ISDN-BRI terminals: 12
Signal leads: TXT, TXR, PXT, and PXR
Up to 8 ports can be used for ASAI links
2 B-channels
1 D-channel
Range up to 3300 ft.
Compatible with Definity R7 or late
Requires a packet control circuit pack (TN778) if using R6si systems
WARRANTY: 90-DAY REPLACEMENT WARRANTY / FINAL SALE