Name: Rj11 to MM ST Line Side POTS 2-Wire Converter Card
Brand: Transition Networks
Availability: InStock

Transition Networks CAPTF3311-105 Rj11 to MM ST Line Side POTS 2-Wire Converter Card

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Direct ship item. 2-3 week lead time.

In Stock: 28
Manufacturer: Transition Networks
Model or Part: CAPTF3311-105
Condition: Refurbished
Weight: 1.00lb
Dimensions: 7.17in x 3.39in x 0.87in

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Product Information

Item Condition

New - Sealed or Open Box Condition
Excellent - Almost-New, Missing Original Packaging
Refurbished - Seller Refurbished, Good Condition, Previously Used Item

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Description

Overview

The Transition Networks CAPTF3311-105 is a compact line side POTS 2-wire converter card designed to bridge RJ11 telephone wiring with MM (Miniature Modular) ST interfaces. Engineered for reliable voice path conversion in small PBX, VoIP gateway and legacy telephony environments, this board delivers clear audio transmission while maintaining the simplicity of a plug-in form factor.

Key Features

Direct RJ11 to MM ST conversion - no external adapters required
Supports standard POTS 2-wire signalling with polarity reversal detection
LED indicators for power, line status and fault conditions
Low power consumption - operates from a 5 VDC supply
Compact PCB layout fits in standard 19 inch rack or desktop chassis
Plug-and-play installation - no configuration software needed

Technical Specifications

Model/Part Number: CAPTF3311-105
Manufacturer: Transition Networks
Connector Types: RJ11 (6P2C) female, MM ST (6P2C) male
Signal Type: Analog voice (POTS), 2-wire loop
Operating Voltage: 5 VDC @ 200 mA max
Temperature Range: -10 to +55 degrees C (operating)
Storage Temperature: -20 to +70 degrees C
Dimensions: 3.0 in x 2.5 in x 0.4 in (L x W x H)
Compliance: FCC Part 15, CE

Typical Applications

Connecting legacy analog telephone sets to modern VoIP gateways
Small office PBX extensions where space is limited
Test and measurement rigs that require RJ11 line simulation
Residential or boutique hotel telephone installations upgrading to digital switches
Field service kits for rapid replacement of faulty POTS interfaces

This converter card provides a reliable, cost-effective solution for integrating traditional telephone wiring into contemporary communication systems, ensuring seamless voice continuity and simplified maintenance.