DS3i-N-12


The 12-port DS3i-N-12 card provides 12 ITU-T G.703, ITU-T G.704, and Telcordia GR-499-CORE compliant DS-3 ports per card. Each port operates at 44.736 Mbps over a 75-ohm coaxial cable. The DS3i-N-12 card supports 1:1 or 1:N protection with the proper backplane EIA. Four sets of three adjacent DS-3 signals (Port 1 through Port 3, Port 4 through Port 6, Port 7 through Port 9, and Port 10 through Port 12) are mapped to VC3s into a VC4 and transported as an STC-3c.

The DS3i-N-12 can also aggregate DS3 and E1 traffic and transport it between SONET and SDH networks through AU4/STS 3 trunks, with the ability to add and drop DS3s to an STS3 trunk at intermediate nodes.The DS3i-N-12 card tab contain the following subtabs: