This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Privacy Policy.
2025 IT Superhero Awards—Nominate your IT Superheroes by July 7, 2025!

Cisco 1-port Channelized STM-1 OC-3c to DS0 SPA, Version 2

Print page
Item#: 31499764 // MFG Part#: SPA-1CHSTM1/OC3V2 // By: Cisco
Cisco SPA-1CHSTM1/OC3V2 Main Image from Right-angle
Rollover to Zoom
NOTE: Images may not be exact; please check specifications.
  • Temporarily Out-of-Stock
  • Call for next available delivery
Ordering Information
$38,836.79 
Qty:
When the Cisco 1-Port Channelized STM-1/OC-3 SPA Version 2 is configured in SDH framing mode, it supports channelization into 63 independent E1 channels (VC-12 mapping). When configured for SONET framing mode, the SPA supports channelization into 84 independent T1 channels (VT1.5 mapping or CT-3 mapping into STS-1).

Multilink Point-to-Point Protocol (MLPPP) is supported in hardware to enable link aggregation greater than T1. Up to 12 individual T1s can be combined within a multilink bundle that appears to be a single IP link. This feature allows service providers to provision greater-than-T1 bandwidth on an incremental basis, without requiring migration of the circuit and customer-premises-equipment (CPE) infrastructure to T3 facilities. A maximum of 42 multilink bundles can be configured on each SPA, with at least two T1 links in each bundle.

The Cisco 1-Port Channelized STM-1/OC-3 SPA Version 2 is hot-swappable and supports service-transparent online insertion and removal (OIR), allowing removal of the SPA without affecting the carrier card and other SPAs.
15