Name: 2W FXS/DN Polarized Channel Unit - Compact Power Module
Brand: Telco Systems
Availability: InStock

Telco Systems 2443-40-I1-REV-M 2W FXS/DN Polarized Channel Unit - Compact Power Module

The Telco Systems 2443-40-I1-REV-M, marketed as the 2w Fxs/dn Plar Ch Unit, is a compact and reliable analog voice interface designed for integration into modern carrier and enterprise networks. This unit provides two wireline FXS ports and a dedicat... Read More

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In Stock: 1
Manufacturer: Telco Systems
Model or Part: 2443-40-I1-REV-M
Condition: Refurbished
Weight: 1.00lb

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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 Telco Systems 2443-40-I1-REV-M, marketed as the 2w Fxs/dn Plar Ch Unit, is a compact and reliable analog voice interface designed for integration into modern carrier and enterprise networks. This unit provides two wireline FXS ports and a dedicated DN (directory number) channel, delivering clear voice transmission while supporting a wide range of signaling protocols. Its robust construction and low power consumption make it ideal for both indoor rack installations and outdoor cabinets where space and efficiency are critical.

Key Features

Two independent FXS ports for analog telephone or fax equipment
Dedicated DN channel for streamlined call routing and management
Supports loop current detection, polarity reversal and caller ID
Built-in echo cancellation and noise reduction for high voice quality
Compact 1U rack-mountable form factor
Power over Ethernet (PoE) optional for simplified deployment
Temperature operating range from -10 to 55 deg Celsius

Technical Specifications

Model number: 2443-40-I1-REV-M
Number of FXS ports: 2
Line impedance: 600 ohm nominal
Supply voltage: 48 V DC (optional PoE 48 V)
Maximum current per port: 500 mA
Signal level: -40 to -10 dBmV
Dimensions: 1.75 in (H) x 17.5 in (W) x 10.5 in (D)
Weight: 2.5 lbs
Compliance: FCC Part 15, CE

Typical Applications

Enterprise PBX extensions and legacy analog phone integration
Carrier voice gateway deployments in metro and access networks
Small office or home office (SOHO) voice solutions requiring reliable analog connectivity
Remote site telephony where space and power are limited
Backup voice paths for disaster recovery and business continuity plans