ATT Lucent

Lucent Avaya TN722B DS1 TIE Trunk Card ATT DEFINITY PBX V11

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SKU:
12094
MPN:
TN722B
Condition:
Used
Availability:
Currently out of stock — contact us for availability.
Weight:
4.00 LBS
Shipping:
Calculated at Checkout
  • Lucent Avaya TN722B DS1 TIE Trunk Card – angled top view showing populated PCB with multiple ICs, memory chips, and gold edge connector
  • Lucent Avaya TN722B DS1 TIE Trunk Card – close-up of label showing model TN722B, DS1 TIE TRUNK, revision V11, and serial number barcode
  • Lucent Avaya TN722B DS1 TIE Trunk Card – opposite angled top view showing full board with bus edge connector and component side detail
  • Lucent Avaya TN722B DS1 TIE Trunk Card – bottom/solder side view showing PCB trace pattern and dual edge connectors
$35.20
Was: $230.00

This item is temporarily unavailable. Please view our recommended, in-stock alternatives directly below.

Description

Lucent Avaya TN722B DS1 TIE Trunk Card ATT DEFINITY PBX V11

The Lucent Avaya TN722B is a DS1 TIE Trunk Card designed for use in AT&T, Lucent, and Avaya DEFINITY PBX telephone systems. It provides DS1 (T1) trunk connectivity for TIE line applications, enabling direct private-line connections between PBX systems across multiple locations. This is a V11 revision of the card.

Specifications & What's Included

  • Manufacturer: Lucent Technologies (also sold under AT&T and Avaya branding)
  • Model / Part Number: TN722B
  • Hardware Revision: V11
  • Card Type: DS1 TIE Trunk Card
  • Interface: DS1 / T1
  • Application: TIE Trunk (private-line inter-PBX connectivity)
  • Form Factor: Circuit card / plug-in module for DEFINITY carrier cabinet
  • Compatible Systems: AT&T / Lucent / Avaya DEFINITY PBX platforms (G1, G2, G3, ECS, and related)
  • Included: Card only — no cables or mounting hardware

Applications

The TN722B DS1 TIE Trunk Card was used in AT&T and Lucent DEFINITY PBX systems — a widely deployed enterprise telephone platform that evolved through several generations from the late 1980s through the 2000s under AT&T, Lucent Technologies, and eventually Avaya branding. TIE trunk cards like the TN722B enable DS1 private-line (TIE line) connections between two PBX locations, allowing them to function as a single dialing plan across facilities. This type of card remains relevant today for organizations still operating legacy DEFINITY or early Avaya S8xxx/G650 infrastructure, as well as for system integrators maintaining, expanding, or repairing existing installations. The DS1 interface supports standard T1 framing, making these cards straightforward to integrate with telco and on-premise T1 circuits.

Condition: Used
This Lucent Avaya TN722B DS1 TIE Trunk Card has been inspected and appears to be in good used condition. It was pulled from a working environment where it was previously in use. The card shows normal light wear consistent with prior installation in a PBX cabinet. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
Lucent
Model:
TN722B
MPN:
TN722B
Secondary Model:
V11
SKU:
12094
Type:
DS1 TIE Trunk Card
Compatible With:
AT&T / Lucent / Avaya DEFINITY PBX Systems
Interface Type:
DS1 / T1
Form Factor:
Circuit Card / Module
Hardware Revision:
V11
Country/Region of Manufacture:
United States
Seller Notes:
Card only — no cables or mounting hardware included.
Condition Notes:
This Lucent Avaya TN722B DS1 TIE Trunk Card has been inspected and is in good used condition. Pulled from a working environment where it was previously in use. Normal light wear from prior PBX installation.
California Prop 65 Warning:
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov
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Lucent Avaya TN753 V21 DID Trunk Card Module for DEFINITY G3 PBX System

Lucent Technologies / Avaya

$35.00
Was: $70.00
Lucent Avaya TN753 V21 DID Trunk Card Module for DEFINITY G3 PBX SystemThis is a DID (Direct Inward Dialing) trunk circuit card designed for Lucent Avaya DEFINITY G3 PBX telephone systems. The card...
40134
SKU:
40134
Availability:
Usually ships within 1-2 business days.
Weight:
2.00 LBS
Brand:
Lucent
Model:
TN753
MPN:
TN753
Secondary Model:
V21
Type:
DID Trunk Circuit Card / Module
SKU:
40134
Compatible With:
Lucent Avaya DEFINITY G3 PBX Systems
Form Factor:
Card / Module
Trunk Type:
DID (Direct Inward Dialing)
Condition:
Used – Inspected and in Good Condition
Seller Notes:
Card only — no additional accessories included
Country/Region of Manufacture:
United States
AT&T Board Reference:
963C2-210-200 (visible on PCB)
Interface Type:
Analog Trunk / DID
System Compatibility:
AT&T / Lucent / Avaya DEFINITY G3
Condition Notes:
Lucent Avaya TN753 V21 DID Trunk Card inspected and in good used condition. PCB is clean with no visible damage. Card only — no accessories included. Please contact us with any questions.
California Prop 65 Warning:
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov