Cisco 4500 Series Switch WS-C4503E-S7L+48V+ Overview
Cisco 4500 Series Switch WS-C4503E-S7L+48V+ is a genuine campus and data-center switching product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco 4500 Series family, the WS-C4503E-S7L+48V+ unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is suited to access-layer and edge deployments, where reliable wiring-closet operation and straightforward management are the priorities.
From a specification standpoint, it offers 48 ports for client, server or uplink connectivity; Power over Ethernet support. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
Typical deployments include access-layer deployments for user, phone and AP connectivity, distribution and core aggregation in campus networks, and top-of-rack and end-of-row switching in data centers. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “4503-E Chassis, One WS-X4648-RJ45V+E, Sup7L-E, LAN base Image, 1300W power supply”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the WS-C4503E-S7L+48V+. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise Campus
High-density ports power users, phones and APs at the access layer.
Branch Office
Stackable units simplify branch deployment and management.
Wireless & IoT
PoE budget supports dense wireless and IoT endpoints.
Buying a Pre-Owned WS-C4503E-S7L+48V+
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
WS-C4503E-S7L+48V+ Specification | |
| General | |
| Device Type | Switch - 48 ports - managed - with Cisco Catalyst 4500 Supervisor Engine 7L-E, Cisco Line Cards (WS-X4648-RJ45V+E) |
| Enclosure Type | Rack-mountable 7U |
| Subtype | Gigabit Ethernet |
| Ports | 48 x 10/100/1000 + 2 x X2 |
| Power Over Ethernet (PoE) | PoE |
| Performance | Bandwidth: 48 Gbps ¦ IPv4 switching: 225 Mpps ¦ IPv6 switching: 110 Mpps |
| Processor | : 1.5 GHz |
| RAM | 2 GB SDRAM |
| Flash Memory | 1 GB |
| Status Indicators | Port status, power, link OK, status of modules, link/activity |
| Expansion / Connectivity | |
| Interfaces | 1 x console - RJ-45 management ¦ 1 x 10Base-T/100Base-TX/1000Base-T - RJ-45 management ¦ 48 x 10Base-T/100Base-TX/1000Base-T - RJ-45 PoE ¦ 2 x 10Gb Ethernet - X2 ¦ 1 x USB Type A |
| Expansion Slots | 3 (total) / 1 (free) x expansion slot ¦ 1 (total) / 1 (free) x CompactFlash Card |
| Installed Modules Qty (Max) | 2 (installed) / 3 (max) |
| Power | |
| Power Device | Internal power supply - hot-plug |
| Installed Qty | 0 (installed) / 2 (max) |
| Power Redundancy | Optional |
| Power Redundancy Scheme | 1+1 (with optional power supply) |
| Miscellaneous | |
| Rack Mounting Kit | Included |
| Compliant Standards | NEBS level 3, FCC Class A certified, EN 60950, EN 61000-3-2, EN55022, VCCI Class A ITE, IEC 60950, EN 61000-3-3, EN55024, EN55022 Class A, UL 60950, EN50082-1, CSA 22.2 No. 60950, EN 61000-6-1, ACA TS001, AS/NZS 3260, FCC Part 68, AS/NZ 3548 Class A, JATE, ICES-003 Class A, CS-03, FCC CFR47 Part 15, EN300-386 |
| Dimensions & Weight | |
| Width | 17.3 in |
| Depth | 12.5 in |
| Height | 12.2 in |
WS-C4503E-S7L+48V+ - Deployment Notes
This WS-C4503E-S7L+48V+ switch is suited to wiring-closet, distribution, or core roles depending on the port density and uplink options of the specific model. The port configuration is a key consideration when planning power budgets for attached devices such as IP phones and access points.
For a refresh or expansion, confirm the IOS/NX-OS software release supported by this specific SKU, the fan and power requirements, and the uplink modules that match your existing infrastructure. Our team can verify revision levels and software compatibility before you order.
Every unit at LinkNewNet is inspected and tested before dispatch, and this WS-C4503E-S7L+48V+ variant is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Volume requirements can be staged with configuration checks.
WS-C4503E-S7L+48V+ - Cisco Series Notes
This listing is part of the Cisco enterprise networking product family, sourced and tested by LinkNewNet for enterprise deployment. Cisco Catalyst or Nexus switch is typically deployed in campus access, distribution, or data-center roles. It provides reliable Layer 2/3 switching for user, server and uplink connectivity, and integrates with Cisco DNA Center or traditional CLI-based management.
Deployment guidance: When planning this WS-C4503E-S7L+48V+ unit into a network, confirm the software image (IOS/IOS-XE/NX-OS) required, the power and cooling profile, and the upstream/downstream interface types that match your existing infrastructure. For a like-for-like refresh, match the feature set of the units already in service so management and automation behave consistently.
Our Cisco reconditioning process: Every pre-owned Cisco unit at LinkNewNet passes a documented reconditioning flow before dispatch - visual inspection, internal cleaning, firmware verification, port-by-port testing, and configuration reset to factory defaults. This ensures the unit you receive operates reliably and integrates cleanly with your existing Cisco management tools.
Related models in this family: WS-C4500X-16SFP+, WS-C4500X-32SFP+, WS-C4507R+E, WS-C4506-E, WS-C4506. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.
