Quick tech specs
- serial
- 2 ports
- for Cisco 17XX
- 1841 2-pair
- 2811 2-pair
- 28XX 4-pair
- serial
- refurbished
- 1841
- 1841 4-pair
- 28XX
- 38XX; IAD 24XX
Know your gear
Cisco offers a variety of connectivity, expansion and upgrade modules and cards to accommodate the customer specific needs. Cisco's components are easily and inexpensively upgradeable as customer requirements change. With a wide range of different upgrade solutions and options Cisco supports your investment in its products!