Nortel / Meridian

Nortel Meridian QPC237C 4-Wire E&M Trunk Card PBX Telephone System Module

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SKU:
12239
MPN:
QPC237C
Condition:
Used
Availability:
Currently out of stock — contact us for availability.
Weight:
8.00 LBS
Shipping:
Calculated at Checkout
  • Nortel Meridian QPC237C 4-Wire E&M Trunk Card – front component side showing transformers, ICs, and faceplate labeled 4W EM TRK
  • Nortel Meridian QPC237C 4-Wire E&M Trunk Card – PCB solder side showing backplane edge connector and trace layout
  • Nortel Meridian QPC237C faceplate close-up showing Nortel logo and 4W EM TRK label with red LED indicator
  • Nortel Meridian QPC237C 4-Wire E&M Trunk Card – top-down component view showing dual transformer pairs and main ICs
  • Nortel Meridian QPC237C 4-Wire E&M Trunk Card – angled side view showing faceplate label, 4W EM TRK designation, and card ejector clips
$65.00
Was: $140.00

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

Description

Nortel Meridian QPC237C 4-Wire E&M Trunk Card PBX Telephone System Module

The Nortel Meridian QPC237C is a 4-Wire E&M Trunk Card designed for use in Nortel Meridian PBX systems. E&M (Ear & Mouth, also known as recEive and transMit) is an analog trunk signaling interface used to connect a PBX to external telephone equipment such as tie lines, foreign exchange (FX) circuits, and voice recorders. The 4-wire configuration provides separate transmit and receive paths, offering better signal quality and isolation than 2-wire designs.

Specifications & What's Included

  • Manufacturer: Nortel (Northern Telecom)
  • Part Number: QPC237C
  • Type: 4-Wire E&M Trunk Card
  • Interface: 4-Wire E&M analog trunk signaling
  • Faceplate label: 4W EM TRK (visible in photos)
  • Red LED indicator on faceplate
  • Card ejector clips (white) present on both ends
  • Backplane edge connector for Meridian 1 card shelf
  • Dual transformer pairs and multiple ICs visible on component side
  • Form factor: Standard Meridian 1 card/module
  • Card only — no cables or documentation included

Applications

The QPC237C E&M Trunk Card is used in Nortel Meridian 1 PBX systems to interface with analog tie lines and special-purpose circuits requiring E&M signaling. E&M trunk cards like this one connect the PBX to inter-office tie trunks, voice logging recorders, radio dispatch systems, and off-premise extensions. The Meridian 1 was one of Nortel's flagship enterprise PBX platforms, widely deployed in large corporate, government, and institutional environments from the 1980s through the 2000s. These cards remain in demand for facilities still operating legacy Meridian 1 systems that require spare or replacement trunk interface cards to maintain their telephony infrastructure.

Condition: Used
This Nortel Meridian QPC237C 4-Wire E&M Trunk Card has been inspected and appears to be in good used condition. It was pulled from a working PBX environment where it was previously in service. The card shows normal wear consistent with use in a rack-mounted telephony system. 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:
Nortel
Model:
QPC237C
MPN:
QPC237C
SKU:
12239
Type:
4-Wire E&M Trunk Card
Compatible With:
Nortel Meridian 1 PBX
Interface Type:
4-Wire E&M
Signaling Type:
E&M (Ear & Mouth)
Form Factor:
Card/Module
Seller Notes:
Card only — no cables or documentation included.
Country/Region of Manufacture:
Canada
Condition Notes:
This Nortel Meridian QPC237C 4-Wire E&M Trunk Card has been inspected and is in good used condition. Pulled from a working PBX environment. Shows normal wear. Please view photos and 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
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Nortel Meridian QPC422A Tone Detector Card PBX Telephone System Module

Nortel / Meridian

$75.00
Was: $150.00
Nortel Meridian QPC422A Tone Detector Card PBX Telephone System ModuleTone detector card module for Nortel Meridian PBX telephone systems. This card processes and detects tone signals within the PBX...
12246
SKU:
12246
Availability:
Usually ships within 1–2 business days.
Weight:
2.00 LBS
Brand:
Nortel
Model:
QPC422A
MPN:
QPC422A
Secondary Model:
P0622658
Type:
Tone Detector Card / PBX Module
SKU:
12246
Style:
Style A
Compatible With:
Nortel Meridian PBX Telephone System
Form Factor:
Card / Module
Country/Region of Manufacture:
Canada
Condition:
Used – Pulled from Working Environment
Seller Notes:
Card only; no additional accessories included.
Condition Notes:
Nortel Meridian QPC422A Tone Detector Card. Used, pulled from a working PBX environment. Inspected and in good condition — clean PCB, no visible damage. Style A, made in Canada. Card only.
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