Lifetime Warranty
Manufacturer: Cisco
Product ID: WS-X6148-RJ-21
Product Description: Catalyst 6500 48-Port 10/100 Upgradable to Voice, RJ-21
Shipping: Typically ships within 2-3 days
Warranty: Lifetime Warranty
Any Questions?
1-800-TO-MULTI or Email
Pre-owned, used and refurbished Cisco WS-X6148-RJ-21

WS-X6148-RJ-21 Ethernet module features 48 ports, four port groups, and a buffer size of 128 KB per port (all variants). Supported by Supervisor Engine 2, 32, 32 PISA, 720, and 720-10Ge, the WS-X6148-RJ-21 gives users the option of PoE support because the module is Field upgradeable to Cisco Prestandard by installing the WS-F6K-VPWR= daughter card.

The Cisco WS-X6148-RJ-21 available from MULTI-LINK (MLCP) isn't the only component in our extensive switch inventory. We maintain a diverse collection of current and previous generation equipment including modular and fixed-configuration switches, interface cards, and other insert components. Regardless of your Cisco switch needs, we'll find it for you.

By maintaining such a large WS-X6148-RJ-21 and overall switch inventory, MULTI-LINK is able to deliver equipment quickly time and again, helping us build long customer relationships. That relationship guides our commitment to quality, and that's why we guarantee all used and refurbished WS-X6148-RJ-21 will be tested to factory specifications by our onsite technicians, and is backed with our standard lifetime warranty.

Want to request a quote for a new, refurbished or used WS-X6148-RJ-21? Simply add it to your quote cart or call us directly at 1-800-TO MULTI (866-8584) and speak with a representative today!

Have surplus WS-X6148-RJ-21 or other network equipment? We'd like to hear from you. Please visit our Investment recapture page to review various buy-back options, list your equipment on our Sell Us Your Surplus form or call us directly for assistance at 1-800-TO MULTI (866-8584).

You might also be interested in VS-S720-10G-3C.

General Information
Manufacturer: Cisco
Product ID: WS-X6148-RJ-21
Product Description: Catalyst 6500 48-Port 10/100 Upgradable to Voice, RJ-21
Product Type: Switching Module
Marketing Information
The Catalyst 6500 48-port 10/100 Fast Ethernet RJ-21 module is designed for the wiring closet. The WS-X6148-RJ-21 is field-upgradeable to support Cisco Inline Power via voice daughter card (WS-F6K-VPWR=), and will support IEEE 802.3af inline power standard in a future upgrade.
Technical Information
Application/Usage: Switching Network
Interfaces/Ports Details: 4 x RJ-21 Connector
  48 x Port 10/100Base-TX Auto-sensing LAN
Media & Performance
Media Type Supported: Twisted Pair
Twisted Pair Cable Standard: Category 5
  Category 5e
  Category 6
Maximum Distance Supported: 328 ft
Maximum Data Transfer Rate: 100 Mbit/s
Physical Characteristics
Height: 1.2"
Width: 14.4"
Depth: 16"
Shipping Weight (Approximate): 11 lb
Additional Information:
  • Forwarding architecture: Use centralized CEF forwarding
  • Distributed forwarding upgrade: None; Classic interface modules cannot be upgraded for distributed forwarding
  • Primary Applications: Base Wiring Closet
  • Interface Module Class: Classic
  • Backplane Connection: Bus
  • Queues per Port (Tx = Transmit, Rx = Receive): Tx-2q2t, Rx-1q4t
  • Voice-capable modules upgradable to Cisco Inline Power or 802.3af
  • Performance/ Forwarding Rate (Mpps): 32 Gbps; 15 Mpps per system
  • Forwarding Engine Architecture: Supervisor engine CPU makes forwarding decision
  • DFC Upgrade Requirements: Not supported
  • Fabric Connections: 32 Gbps shared bus connection (on Supervisor Engine1A, Supervisor Engine 2, and Supervisor Engine 720)
  • Scheduler: Weighted Round Robin (WRR)

    Port Density/Chassis Model:
  • 576 ports (Cisco Catalyst 6513)
  • 384 ports (Cisco Catalyst 6509)
  • Cisco Catalyst 6500 Series

    Supervisor Engine Supported:
  • Supervisor Engine 1A
  • Supervisor Engine 2
  • Supervisor Engine 720

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