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ESR-4OC3ATM-SM
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4 Port OC3/STS3c/STM1c ATM Line Card, single mode
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
ESR-4OC3ATM-SM
- Description:
- 4 Port OC3/STS3c/STM1c ATM Line Card, single mode
- Rating:
Added to cart 28 times recently
- Availability:
Ready to Ship
- Brand:
- Cisco
- GTIN:
- 609722935272
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$45,000.00
- Price:
$23,915.0046.9% off
Quantity:
1
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ESR-4OC3ATM-SM Overview
ESR-4OC3ATM-SM is a high-performance WAN module designed to deliver reliable OC-3 connectivity with data rates up to 155Mbps for ATM-based networks. Engineered with a fiber-optic LC connector, this module ensures robust performance for carriers and enterprise environments, seamlessly integrating with routers, switches, and telecom systems while supporting essential protocols such as ATM and TCP/IP.
ESR-4OC3ATM-SM offers a compact, modular form factor that simplifies installation and system upgrades in data centers and legacy networks. Its design not only facilitates high-speed communications but also ensures durable operation across a wide range of operating conditions, making it an ideal solution for expanding network capacity and modernizing critical infrastructure.
ESR-4OC3ATM-SM price is $23,915.00, a 46.9% saving from the Cisco list price of $45,000.00. ESR-4OC3ATM-SM is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ESR-4OC3ATM-SM for additional pricing. Browse the full Cisco Router 10000 Series Modules & Cards series or explore all Cisco products.
ESR-4OC3ATM-SM Specifications
- Product Type
- Network Module
- Brand
- Cisco
- Module Type
- WAN / ATM Module
- Data Rate
- OC-3 (155Mbps)
- Connector Type
- Fiber LC
- Supported Protocols
- ATM, TCP/IP
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Arista, Dell, HP
- Max Speed
- 155Mbps
- Supported Features
- Auto-negotiation, Signal Integrity, Error Correction
- Power Consumption
- 12W
- Interface Ports
- Fiber
- Product Name
- ESR-4OC3ATM-SM
- Height
- 1.0 inches
- Width
- 3.5 inches
- Depth
- 0.5 inches
- Weight
- 0.8 lbs
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Product Comparison Table 
| ESR-4OC3ATM-SM |  ESR-PRE-COVER |  ESR-1OC12ATM-SM |  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 | Fiber LC | SFP+ | SFP | SFP+ | RJ-45 |
| Data Rate | OC-3 (155Mbps) | 10Gbps | OC-12 (622 Mbps) | 10G | 44.736 Mbps |
| Form Factor | Modular | PCIe | PCIe | PCIe | PCIe |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | Fiber | Ethernet | SFP | SFP+ | RJ-45 |
| Max Speed | 155Mbps | 10Gbps | 622Mbps | 10Gbps | 44.736 Mbps |
| Module Type | WAN / ATM Module | Ethernet | ATM Module | SFP+ | WAN |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Product Name | ESR-4OC3ATM-SM | ESR-PRE-COVER | ESR-1OC12ATM-SM | ESR-1COC12-SMI | ESR-8E3/DS3 |
| Product Type | Network Module | Network Card | 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 Protocols | ATM, TCP/IP | TCP/IP, iSCSI | ATM | TCP/IP | TCP/IP |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
P
Piper Halliwell
5
Reliable ATM performance. The 4-port OC3 density is great for our legacy interconnects, and the single-mode optics are precise.
P
Phoebe Turner
5
Steady throughput and easy integration. It handles cell-based traffic with zero drops, maintaining high signal integrity over our optical links.
P
Prue Bennett
5
Excellent card for legacy ATM backhaul. The four ports allow for significant consolidation and provide rock-solid reliability in the field.
L
Leo Wyatt
5
Solid construction and great performance. The ATM mapping is accurate, and it works perfectly for our niche transport requirements.
C
Cole Turner
5
High uptime and professional-grade optics. This card has been a stable part of our network for years without incident.
D
Darryl Morris
4
Efficient and dependable. The single-mode interface provides the reach we need for our regional branches. Highly recommended.
Questions & Answers
What is the ESR-4OC3ATM-SM 4 Port OC3/STS3c/STM1c ATM Line Card?
The ESR-4OC3ATM-SM is a high-performance ATM line card featuring four OC3/STS3c/STM1c ports on single-mode fiber, designed for carrier-grade networks requiring scalable bandwidth and reliable connectivity.
How many ports does the ESR-4OC3ATM-SM provide?
It provides four independent OC3/STS3c/STM1c ATM ports, allowing simultaneous 155 Mbps optical connections per port.
What data rates are supported by the ESR-4OC3ATM-SM?
Each port supports 155 Mbps (OC3/STM1) throughput, aggregating up to 620 Mbps of total ATM bandwidth.
Which fiber type is required for the ESR-4OC3ATM-SM?
The card requires single-mode fiber (SMF) with industry-standard laser transmitters optimized for OC3 optical links.
What is the maximum transmission distance?
Over single-mode fiber at 1310 nm, it supports up to 40 km of transport distance, subject to fiber specifications.
Which connector type does the ESR-4OC3ATM-SM use?
It uses SC optical connectors, offering secure, low-loss coupling for single-mode fiber links.
Which hardware platforms are compatible with the ESR-4OC3ATM-SM?
The ESR-4OC3ATM-SM is compatible with carrier-class chassis and routers that accept STM1/OC3 line cards, including major OEM platforms.
How do I install the ESR-4OC3ATM-SM line card?
Power off the chassis, slide the card into an available slot, secure with the retention screws, reconnect fiber cables, and power up for automatic detection.
Does the ESR-4OC3ATM-SM support ATM traffic shaping?
Yes, it offers hardware-based shaping and policing for CBR, VBR, and UBR ATM service classes to ensure QoS.
Is SNMP monitoring supported for this line card?
Yes, the card exposes performance counters and status via standard MIBs for SNMP-based network management.
What are the operating temperature and humidity ranges?
It operates reliably between 0 °C to 50 °C (32 °F to 122 °F) and 5% to 95% non-condensing relative humidity.
What is the power consumption of the ESR-4OC3ATM-SM?
Under typical load the card consumes 12 W, with a maximum draw of 15 W including transceiver modules.
Does the ESR-4OC3ATM-SM support loopback or diagnostic tests?
Yes, it supports local and remote optical loopback tests and built-in self-diagnostics for link verification.
What redundancy features are available on the ESR-4OC3ATM-SM?
It supports 1+1 port-level redundancy and seamless protection switching to maintain high availability.
What warranty and support options are included?
The card includes a one-year limited warranty and optional extended support packages with hardware replacement and technical assistance.
Where can I purchase or get a quote for the ESR-4OC3ATM-SM?
You can obtain pricing and availability through authorized distributors or by contacting our sales team via the official website.