Cisco Linecards & Modules

8 OC-3c/STM-1c single height BC, SMFIR, LC connectors

2 OC-12c/STM-4c single height BC, SMFIR, SC connectors

1-Port SMF,Intermediate-Range,Double-height Back Card

4-Port,Double-height,OC-48/STM-16 Back Card (No Optics)

8 T3 single height back card, SMB

EtherSwitch 8x 10/100T (4 PoE) ports + 2 100/1000 SFP

Data Compression AIM for the 3660

8 E3 single height back card, SMB

1 port channelized T1/E1 and PRI HWIC (data only)