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| Part Number | Description | |
| NM-1GE | 1 Port GE Network Module | |
| PA-MC-E3 | 1 port Multi-Channel E3 port adapter | |
| PA-MC-STM-1SMI | 1 port multichannel STM-1 single mode port adapter | |
| PA-MC-STM-1MM | 1 port multichannel STM-1multimode port adapter | |
| PA-MC-STM-1MM | 1 port multichannel STM-1multimode port adapter | |
| PA-MC-T3 | 1 port multichannel T3 port adapter | |
| PA-MC-T3 | 1 port multichannel T3 port adapter | |
| PA-POS-1OC3 | 1 Port Packet/SONET OC3c/STM1 Port Adapter | |
| PA-VXA-1TE1-24+ | 1 Port T1/E1 Digital Voice Port Adapter with 24 Channels | |
| PA-VXA-1TE1-24+ | 1 Port T1/E1 Digital Voice Port Adapter with 24 Channels | |
| PA-VXA-1TE1-30+ | 1 Port T1/E1 Digital Voice Port Adapter with 30 Channels | |
| PA-VXA-1TE1-30+ | 1 Port T1/E1 Digital Voice Port Adapter with 30 Channels | |
| PA-T3+ | 1 Port T3 Serial Port Adapter Enhanced | |
| PA-T3+ | 1 Port T3 Serial Port Adapter Enhanced | |
| SPA-1XTENGE-XFP | 1-port 10Gigabit Ethernet Shared Port Adapter XFP based | |
| VWIC2-1MFT-T1/E1 | 1-Port 2nd Gen Multiflex Trunk Voice/WAN Int. Card - T1/E1 | |
| VWIC2-1MFT-G703 | 1-Port 2nd Gen Multiflex Trunk Voice/WAN Int. Card - G.703 | |
| WIC-1DSU-56K4 | 1-port 4-WIRE 56/64 KBPS WAN INTERFACE CARD | |
| WIC-1DSU-56K4 | 1-port 4-WIRE 56/64 KBPS WAN INTERFACE CARD | |
| WIC-1ADSL | 1-port ADSL WAN Interface Card |