Name: Contivity 1-Port T1 CSU/DSU Card 2500/
Brand: Nortel
Availability: InStock

Nortel DM2111004 Contivity 1-Port T1 CSU/DSU Card 2500/

The Nortel DM2111004 Contivity 1-Port T1 CSU/DSU Card 2500 is a high-performance interface module designed to connect your Contivity 2500 router to a T1 line. This compact, single-port card provides reliable circuit-switched communication for voice, ... Read More

price

$0.00

Direct ship item. 2-3 week lead time.

In Stock: 1
Manufacturer: Nortel
Model or Part: DM2111004
Condition: Refurbished
Weight: 15.00lb

Qty

Add to Cart

Buy Now

Get a Price Quote

This Nortel DM2111004 is ready to ship from our partner network. Because market pricing on this part fluctuates, we want to ensure you get the lowest rate possible. Enter your email and our team will get back to you with a custom quote.

Add to Wish List

Shipping Information

United States Shipping

Orders over $200 qualify for Free Super-Saver Shipping! We ship at our discretion via the most cost-effective method using FedEx, UPS, or USPS.

To ensure your order is processed efficiently, all shipping charges must be pre-paid at checkout. We are unable to bill directly to third-party shipper accounts or use customer-provided labels for domestic shipments.

International Shipping

International orders begin processing as soon as payment is confirmed.

Pre-paid Shipping: For your convenience, you can select and pay for international shipping directly at checkout.
Carrier Accounts: Alternatively, we can bill transport costs directly to your FedEx account number. (Note: We cannot bill to DHL, TNT, or UPS accounts).
Customer Labels: We are also happy to ship internationally using pre-paid labels provided by you for any carrier.

Expedited and Rush Shipping

Need it faster? HardwareJet.com offers 1 or 2-day expedited shipping options during checkout for eligible items.

To get your order to the front of the line, expedited orders include a small rush fee in addition to the carrier's shipping charges. If an item is not available for expedited shipping, these options will not appear in your cart.

Product Information

Item Condition

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

To bring you an even wider selection, some of our items are shipped directly from our trusted partners. Delivery times may vary for these items.

Description

Overview
The Nortel DM2111004 Contivity 1-Port T1 CSU/DSU Card 2500 is a high-performance interface module designed to connect your Contivity 2500 router to a T1 line. This compact, single-port card provides reliable circuit-switched communication for voice, data, and video services, delivering seamless integration into existing Nortel environments. Its robust design ensures continuous operation in mission critical settings such as enterprise backbones, call centers, and remote office sites.

Key Features

Single T1 (1.544 Mbps) CSU/DSU interface for point-to-point connectivity
Built-in line coding and framing (ESF, D4) for flexible network compatibility
Automatic alarm detection and reporting to the router for rapid fault isolation
Support for loopback testing and diagnostics to simplify maintenance
Low power consumption and fan-less operation for quiet installation
Hot-swap capable for minimal downtime during upgrades or replacements

Technical Specifications

Model/Part Number: DM2111004
Interface: T1 (PRI) 1.544 Mbps
Line Coding: AMI, B8ZS
Framing Options: ESF, D4
Impedance: 75 ohms
Supply Voltage: 12 VDC
Power Consumption: less than 5 watts
Operating Temperature: 0 deg to 55 deg C
Dimensions: standard 3U rack height, 1.75 in width
Connector Type: RJ48C

Applications

Enterprise WAN links that require reliable T1 connectivity
Voice over IP gateways and traditional PBX integrations
Remote office or branch office extensions using T1 circuits
Data backup and disaster recovery sites that need dedicated bandwidth
Service provider environments delivering leased line services

By choosing the Nortel Contivity 1-Port T1 CSU/DSU Card 2500, you gain a trusted solution that simplifies network architecture, reduces latency, and enhances overall system stability. Its seamless compatibility with existing Contivity routers makes it an ideal upgrade path for organizations seeking to modernize their telecommunications infrastructure while protecting their investment.