Lifetime Warranty
Manufacturer: Cisco
Product ID: SPA-4XT3/E3
Product Description: 4-port Clear Channel T3/E3 Shared Port Adapter
Shipping: Typically ships within 2-3 days
Warranty: Lifetime Warranty
Any Questions?
1-800-TO-MULTI or Email

Pre-Owned, Used And Refurbished Cisco SPA-4XT3/E3

The Cisco SPA-4XT3/E3, or 4-Port T3/E3 Serial SPA, is compatible with the Cisco 12000 Series routers, 7300 Series routers, 7600 Series routers, and the 6500 series Switches. The SPA-4XT3/E3 is the recommended replacement part for the now obsolete 7300-6T3 and 7300-6E3.

MULTI-LINK (MLCP) offers a variety of options other than the Cisco SPA-4XT3/E3 in our extensive inventory of switch equipment. If you're interested in requesting a quote for a new, refurbished or used SPA-4XT3/E3, add it to your quote cart. Would you rather talk to us in person? Call a representative directly at 1-800-TO MULTI (866-8584) today!

Because MULTI-LINK maintains a large SPA-4XT3/E3 inventory, we can often ship same day or within 1-2 days of your order. We know that "diversity" within our stock is the key to customer satisfaction, so we provide an extensive selection of current and previous generation equipment from fixed-configuration and modular switches, to interface cards, as well as other insert components. Whatever your Cisco switch requirement, MULTI-LINK is your one-stop source.

We approach every transaction with a commitment to quality and guarantee all used and refurbished SPA-4XT3/E3 isn't shipped until it has been tested to factory specifications by our onsite technicians. We back that promise with our standard lifetime warranty.

Time to upgrade? If you have surplus SPA-4XT3/E3 or other network equipment, 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 WS-C6K-13SLOT-FAN.

General Information
Manufacturer: Cisco
Product ID: SPA-4XT3/E3
Product Description: 4-port Clear Channel T3/E3 Shared Port Adapter
Product Type: Shared Port Adapter
Marketing Information

The Cisco Clear Channel T3/E3 Shared Port Adapter provides an extensible design that enables service prioritization for voice, video and data services. Enterprise and service provider customers can take advantage of improved slot economics resulting from modular port adapters that are interchangeable across Cisco routing platforms. The I-Flex design maximizes connectivity options and offers superior service intelligence through programmable interface processors that deliver line rate performance.

Technical Information
Application/Usage: Data Networking
Interfaces/Ports Details: 4 x BNC T3/E3
Media & Performance
Media Type Supported: Twisted Pair
Maximum Data Transfer Rate: 43
Physical Characteristics
Height: 0.8"
Width: 6.8"
Depth: 7.3"
Weight (Approximate): 12 oz
Additional Information:
  • 1.0/2.3 RF connector (75-ohm impedance)
  • 1.0/2.3 RF to BNC adapter cable option
  • C-bit or M23 framing
  • Binary 3-zero substitution (B3ZS) line coding
  • T3 far-end alarm and control (FEAC) channel support
  • Compliant with E3 pulse mask
  • 16- and 32-bit cyclic redundancy check (CRC), 16-bit default
  • Bit-error-rate-testing (BERT) pattern generation and detection per channel
  • Up to 4 independent T3 or E3 ports configurable as either all T3 or all E3 only
  • Interoperability with all Cisco T3/E3-capable products and from other leading T3/E3 DSU and Frame Relay equipment vendors
  • Cisco 7304 Router
  • Cisco 7600 Series Routers
  • Cisco 12000 Series Routers
  • Cisco XR 12000 Series Routers

You might also be interested in:



CISCO EXCESS - Standalone with Optional Stacking 48 10/100/1000 Ethernet and 4x10G Uplink ports, with 250WAC power supply, 1 RU, IP Base feature set
Learn More


1-p OC12/STM-4 Module:16k/32k cons, 130k/200k cell buff
Learn More


HDM Back Card/RS232D (SDI-RS232D)
Learn More

Newsletter Subscribe

Close X

Sign up for news and special offers