Lucent Technologies / Avaya

Lucent Avaya TN753 V21 DID Trunk Card Module for DEFINITY G3 PBX System

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SKU:
40134
MPN:
TN753 V21
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
2.00 LBS
Shipping:
Calculated at Checkout
  • Lucent TN753 V21 DID Trunk Card – angled top view showing full PCB with relay array and ICs
  • Lucent TN753 V21 DID Trunk Card – close-up of faceplate label showing TN753 DID TRUNK V21 and Lucent branding
  • Lucent TN753 V21 DID Trunk Card – underside/reverse PCB view showing AT&T markings and edge connector
  • Lucent TN753 V21 DID Trunk Card – top-down flat view of full PCB showing AT&T ICs, relay bank, and component layout
$35.00
Was: $70.00
Current Stock: 1

Sold Out

Description

Lucent Avaya TN753 V21 DID Trunk Card Module for DEFINITY G3 PBX System

This is a DID (Direct Inward Dialing) trunk circuit card designed for Lucent Avaya DEFINITY G3 PBX telephone systems. The card provides analog trunk connectivity and allows incoming calls to route directly to specific extensions without operator intervention.

Specifications & What's Included

  • Model: TN753 V21
  • Manufacturer: Lucent Technologies
  • Type: DID Trunk Circuit Card / Module
  • Compatible Systems: AT&T / Lucent / Avaya DEFINITY G3 PBX
  • Interface Type: Analog Trunk / DID
  • Form Factor: Card / Module
  • Card only — no accessories included

Applications

DID trunk cards were used in enterprise PBX telephone systems to enable multiple incoming phone lines with direct extension routing. This card was commonly deployed in DEFINITY G3 systems through the 1990s and 2000s for businesses requiring call distribution across departments. The TN753 integrates directly into the DEFINITY G3 backplane and supports analog trunk circuits from telephone service providers.

Condition: Used
This Lucent Technologies / Avaya TN753 V21 DID Trunk Card has been inspected and appears to be in good used condition. The PCB is clean with no visible damage, cracked components, or burnt areas. The card's faceplate label is intact and clearly legible. Normal light handling marks are present consistent with prior rack service. No accessories are included — card only. 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 Technologies
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.
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Lucent TN746B Analog Line V16 Plug-In Module Definity PBX AT&T

ATT Lucent

$28.00
Was: $60.00
Lucent TN746B Analog Line V16 Plug-In Module Definity PBX AT&TThis is a 16-line analog circuit pack module for the Lucent Definity Enterprise Communications Server. It provides analog line...
18315
SKU:
18315
Availability:
Usually ships within 1-2 business days.
Weight:
5.00 LBS
Brand:
Lucent Technologies
Model:
TN746B
MPN:
TN746B
Secondary Model:
98DR12130235
Type:
Analog Line Circuit Pack / Plug-In Module
SKU:
18315
Version:
V16
Compatible With:
Definity Enterprise Communications Server
Compatible With 2:
AT&T Definity PBX, Lucent Definity G3 Series
Interface Type:
Analog
Number of Lines:
16
Form Factor:
Plug-In Card / Circuit Pack
Condition:
Used – Pulled from Working Environment
Seller Notes:
Module only; no additional accessories included
Country/Region of Manufacture:
United States
Condition Notes:
Lucent TN746B Analog Line V16 module in good used condition. Pulled from a working environment where it was in active use. Board is clean with no visible damage. Please view photos and contact us with questions.