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| Cisco 1720 Router Specifications |
| Fixed LAN Ports (connections) | 1-port autosensing 10/100 Mbps Ethernet (10/100 BaseT) |
| Fixed WAN Ports (connections) | None |
| Modular Slots | 2 WAN slots |
| Processor Speed (type) | 48 Mhz (RISC) |
| Dimensions (HxWxD) | 3.1 x 11.2 x 8.7 in. |
| Service Category | 4 |
| WAN Interface Cards (WICs) | 1-port serial sync/async 2 port serial sync/async 2-port low-speed serial (up to 128 kbps) 1-port ISDN BRI (S/T) 1-port ISDN BRI (U) with integrated NT-1) 1-port serial with integrated 56/64 kbps DSU/CSU 1-port serial with integrated T1/Fractional T1 DSU/CSU |
| Voice Interface Cards (VICs) | None |
| Flash Memory | 4 MB (default) 16 MB (max) |
| DRAM Memory | 16 MB (default) 48 MB (max) |
| | Cisco 1750 Router Specifications |
| Fixed LAN Ports (connections) | 1-port autosensing 10/100 Mbps Ethernet (10/100 BaseT) |
| Fixed WAN Ports (connections) | None |
| Modular Slots | 3 slots (2 WAN or Voice slots and 1 Voice slot) |
| WAN Interface Cards (WICs) | 1-port serial sync/async 2 port serial sync/async 2-port low-speed serial (up to 128 kbps) 1-port ISDN BRI (S/T) 1-port ISDN BRI (U) with integrated NT-1) 1-port serial with integrated 56/64 kbps DSU/CSU 1-port serial with integrated T1/Fractional T1 DSU/CSU |
| Voice Interface Cards (VICs) | 2-port voice - FXS voice/fax interface card 2-port voice E&M voice/fax interface card 2-port FXO voice/fax interface card 2-port FXO voice/fax card for Europe 2-port FXO voice/fax card for Australia |
| Processor Speed (type) | 48 Mhz (RISC) |
| Flash Memory | 1750 base model: 4 MB (default); 16 MB (max) |
| DRAM Memory | 16 MB (default); 48 MB (max) |
| Dimensions (HxWxD) | 4.0 x 11.2 x 8.7 |
| Service Category | 4 |
| | Cisco 1750- Cisco 1750-2V Router Specifications |
| Fixed LAN Ports (connections) | 1-port autosensing 10/100 Mbps Ethernet (10/100 BaseT) |
| Fixed WAN Ports (connections) | None |
| Modular Slots | 3 slots (2 WAN or Voice slots and 1 Voice slot) |
| WAN Interface Cards (WICs) | 1-port serial sync/async 2 port serial sync/async 2-port low-speed serial (up to 128 kbps) 1-port ISDN BRI (S/T) 1-port ISDN BRI (U) with integrated NT-1) 1-port serial with integrated 56/64 kbps DSU/CSU 1-port serial with integrated T1/Fractional T1 DSU/CSU |
| Voice Interface Cards (VICs) | 2-port voice - FXS voice/fax interface card 2-port voice E&M voice/fax interface card 2-port FXO voice/fax interface card 2-port FXO voice/fax card for Europe 2-port FXO voice/fax card for Australia |
| Processor Speed (type) | 48 Mhz (RISC) |
| Flash Memory | 1750-2V multiservice-ready configuration: 24 MB |
| DRAM Memory | 1750-2V multiservice-ready configuration: 24 MB |
| Dimensions (HxWxD) | 4.0 x 11.2 x 8.7 |
| | Cisco 1750-4V Router Specifications |
| Fixed LAN Ports (connections) | 1-port autosensing 10/100 Mbps Ethernet (10/100 BaseT) |
| Fixed WAN Ports (connections) | None |
| Modular Slots | 3 slots (2 WAN or Voice slots and 1 Voice slot) |
| WAN Interface Cards (WICs) | 1-port serial sync/async 2 port serial sync/async 2-port low-speed serial (up to 128 kbps) 1-port ISDN BRI (S/T) 1-port ISDN BRI (U) with integrated NT-1) 1-port serial with integrated 56/64 kbps DSU/CSU 1-port serial with integrated T1/Fractional T1 DSU/CSU |
| Voice Interface Cards (VICs) | 2-port voice - FXS voice/fax interface card 2-port voice E&M voice/fax interface card 2-port FXO voice/fax interface card 2-port FXO voice/fax card for Europe 2-port FXO voice/fax card for Australia |
| Processor Speed (type) | 48 Mhz (RISC) |
| Flash Memory | 1750-4V multiservice-ready configuration: 24 MB |
| DRAM Memory | 1750-4V multiservice-ready configuration: 24 MB |
| Dimensions (HxWxD) | 4.0 x 11.2 x 8.7 |
| Service Category | 3 |