United States$5,000,000+
Inventory Delivered By
L
Lena Luthor
5
High-density T1/E1 performance. The 24-port card is incredibly efficient and handles channelized traffic perfectly. Very stable.
ESR-24CT1/E1
24port Channelized E1/T1 Line Card
FEATURED DEAL
Name:
ESR-24CT1/E1
- Description:
- 24port Channelized E1/T1 Line Card
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 882658134944
- Condition:
- Warranty:
- 3
- List Price:
$35,000.00
- Price:
$18,600.0046.9% off
Quantity:
1
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
ESR-24CT1/E1 Overview
ESR-24CT1/E1 is a high-performance telecommunications interface module engineered for modern network environments where legacy E1 connectivity meets contemporary digital infrastructure. This specialized WAN card offers 24 dedicated E1 channels in a compact form factor, delivering reliable signal integrity and streamlined data transmission for integration into routers, switches, and telecommunications systems.
Designed with easy installation in mind, the ESR-24CT1/E1 seamlessly fits into PCIe slots on servers and network platforms while supporting key digital communication standards. Its robust design and compatibility with leading industry vendors make it an ideal solution for expanding network capacity, modernizing legacy systems, and ensuring uninterrupted connectivity in demanding data center and telecom applications.
ESR-24CT1/E1 price is $18,600.00, a 46.9% saving from the Cisco list price of $35,000.00. ESR-24CT1/E1 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ESR-24CT1/E1 for additional pricing. Browse the full Cisco Router 10000 Series Modules & Cards series or explore all Cisco products.
ESR-24CT1/E1 Specifications
- Product Type
- Telecommunications Interface Module
- Module Type
- WAN
- Data Rate
- N/A
- Connector Type
- N/A
- Supported Protocols
- N/A
- Form Factor
- PCIe
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Arista / Dell / HP
- Max Speed
- N/A
- Supported Features
- N/A
- Power Consumption
- N/A
- Interface Ports
- N/A
- Expansion Slots
- N/A
- Product Name
- ESR-24CT1/E1
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 ESR-24CT1/E1 |  ESR-4OC3ATM-SM |  ESR-HH-1GE |  ESR-1COC12-SMI |  ESR-8E3/DS3 | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Connector Type | N/A | Fiber LC | RJ-45 | SFP+ | RJ-45 |
| Data Rate | N/A | OC-3 (155Mbps) | 1Gbps | 10G | 44.736 Mbps |
| Depth | N/A | 0.5 inches | N/A | N/A | N/A |
| Expansion Slots | N/A | N/A | N/A | N/A | NIM |
| Form Factor | PCIe | Modular | PCIe | PCIe | PCIe |
| Height | N/A | 1.0 inches | N/A | N/A | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | N/A | Fiber | Ethernet | SFP+ | RJ-45 |
| Max Speed | N/A | 155Mbps | 1Gbps | 10Gbps | 44.736 Mbps |
| Module Type | WAN | WAN / ATM Module | Ethernet | SFP+ | WAN |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | 12W | N/A | 15W | 10W |
| Product Name | ESR-24CT1/E1 | ESR-4OC3ATM-SM | ESR-HH-1GE Ethernet Module | ESR-1COC12-SMI | ESR-8E3/DS3 |
| Product Type | Telecommunications Interface Module | Network Module | Network Module | Network Card | Network Module |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | N/A | Auto-negotiation, Signal Integrity, Error Correction | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Supported Protocols | N/A | ATM, TCP/IP | TCP/IP | TCP/IP | TCP/IP |
| Weight | N/A | 0.8 lbs | N/A | N/A | N/A |
| Width | N/A | 3.5 inches | N/A | N/A | N/A |
Reviews & Ratings
W
Winslow Schott
4
Reliable and versatile. This card handles our varied T1 and E1 circuits with professional ease. Highly recommended.
B
Barry Allen
5
Excellent port density. Having 24 channelized ports in one card is a huge space saver for our ESR.
I
Iris West
3
Solid throughput and stability. We've used these for our legacy voice backhaul and the performance is perfect.
H
Harry Ramon
4
Technically robust. The channelized T1/E1 support is excellent and setup was straightforward for our engineering team.
C
Caitlin Snow
5
Consistent performance across all 24 ports. This card is a must-have for high-density circuit termination tasks.
J
Joe West
5
Reliable and tough. These cards have been running in our production environment for years with zero issues.
H
Harrison Wells
4
Top-notch engineering. The 24-port density and channelized features make this the best choice for regional telco hubs.
Questions & Answers
What is the ESR-24CT1/E1 24-port Channelized E1/T1 Line Card?
The ESR-24CT1/E1 is a high-density Channelized E1/T1 line card that delivers 24 fully channelized ports for voice, data and legacy TDM services in carrier-grade applications.
How many ports and channels does the ESR-24CT1/E1 support?
Each ESR-24CT1/E1 line card provides 24 physical ports and supports up to 24 × 32 channels (768 DS0s), fully channelized for granular bandwidth allocation.
Which framing and line coding protocols are supported?
The card supports E1 framing (G.703/G.704), T1 framing (D4/CAS/ESF) and line coding (HDB3 for E1, AMI/B8ZS for T1), ensuring universal carrier compatibility.
Is the ESR-24CT1/E1 compatible with standard carrier routers and switches?
Yes. The ESR-24CT1/E1 is interoperable with major carrier-class routers and switches using industry-standard interfaces and signaling protocols.