Name: DDI24 RCV Line Interface Unit
Brand: Telco Systems
Availability: InStock

Telco Systems 2420-01 DDI24 RCV Line Interface Unit

The Telco Systems DDI24 RCV Line Interface Unit (model 2420-01) is a high-density, analog line interface designed to connect up to twenty four Direct Dial In (DDI) telephone lines to a digital PBX or VoIP gateway. Built for reliability and ease of in... Read More

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In Stock: 18
Manufacturer: Telco Systems
Model or Part: 2420-01
Condition: Refurbished
Weight: 6.00lb

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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

Key Features

Supports 24 analog DDI ports with individual line monitoring
Plug-and-play RJ11 connectors for fast field deployment
Built-in DC feed and ring voltage isolation to protect downstream equipment
Configurable polarity reversal and line impedance matching
LED status indicators for power, line activity and fault detection
Compact 1U rackmount form factor with front panel access
Compatible with Telco Systems PBX models and most third-party VoIP gateways

Technical Specifications

Model number: 2420-01
Number of ports: 24 DDI (RJ11)
Operating voltage: 48 VDC +/- 10 percent
Ring voltage range: 40 to 90 volts AC
Line impedance: 600 ohms nominal
Power consumption: max 8 watts
Environmental temperature: 0 to 50 deg C (operating)
Storage temperature: -20 to 70 deg C
Dimensions (H x W x D): 1.75 in x 17.5 in x 12.0 in
Weight: 3.2 lbs

Applications

Enterprise PBX expansions that require additional analog DDI lines
Call centre environments needing reliable inbound line connectivity
Legacy telephony integration for hospitals, schools and government facilities
Hybrid VoIP solutions where PSTN fallback is required
Small to medium business deployments seeking cost-effective line aggregation

The DDI24 RCV Line Interface Unit delivers robust performance, simple management and the flexibility to bridge analog telephone infrastructure with contemporary digital communications platforms.