| | Cisco 2501 Router Specifications |
| Fixed LAN Ports (connections) | 1-port Ethernet |
| Fixed WAN Ports (connections) | 2-port sync serial |
| Slots | None |
| Dimensions (HxWxD) | 1.75 x 17.5 x 10.56 |
| Service Category | 4 |
| Processor Speed (type) | 20 MHz (68030) |
| Flash Memory | 8-MB dual Flash bank option (default)
16 MB (max) |
| DRAM Memory | 4 MB, upgrades to 8 or 16 MB |
| Power Supply | AC, with optional DC or redundant power supply (RPS) |
| | Cisco 2502 Router Specifications |
| Processor Speed (type) | 20 MHz (68030) |
| Flash Memory | 8-MB dual Flash bank option (default)
16MB (max) |
| DRAM Memory | 4MB, upgrades to 8 or 16 MB |
| Power Supply | AC, with optional DC or redundant power supply (RPS) |
| Fixed LAN Ports (connections) | 1-port Token Ring |
| Fixed WAN Ports (connections) | 2-port sync serial |
| Slots | None |
| Dimensions (HxWxD) | 1.75 x 17.5 x 10.56 in. |
| Service Category | 4 |
| | Cisco 2503 Router Specifications |
| Processor Speed (type) | 20 MHz (68030) |
| Flash Memory | 8-MB dual Flash bank option (default)
16 MB (max) |
| DRAM Memory | 4 MB, upgrades to 8 or 16 MB |
| Power Supply | AC, with optional DC or redundant power supply (RPS) |
| Fixed LAN Ports (connections) | 1-port Ethernet |
| Fixed WAN Ports (connections) | 2-port sync serial
1-port ISDN BRI(S/T) |
| Slots | None |
| Dimensions (HxWxD) | 1.75 x 17.5 x 10.56 |
| Service Category | 4 |
| | Cisco 2504 Router Specifications |
| Processor Speed (type) | 20 MHz (68030) |
| Flash Memory | 8-MB dual Flash bank option (default)
16 MB (max) |
| DRAM Memory | 4 MB, upgrades to 8 or 16 MB |
| Power Supply | AC, with optional DC or redundant power supply (RPS) |
| Fixed LAN Ports (connections) | 1-port Token Ring |
| Fixed WAN Ports (connections) | 2-port sync serial
1-port ISDN BRI(S/T) |
| Slots | None |
| Dimensions (HxWxD) | 1.75 x 17.5 x 10.56 |
| Service Category | 4 |
| | Cisco 2505 Router Specifications |
| Processor Speed (type) | 20 MHz (68030) |
| Flash Memory | 8-MB dual Flash bank option (default)
16 MB (max) |
| DRAM Memory | 4 MB, upgrades to 8 or 16 MB |
| Power Supply | AC, with optional DC or redundant power supply (RPS) |
| Fixed LAN Ports (connections) | 8-port Ethernet hub |
| Fixed WAN Ports (connections) | 2-port sync serial |
| Slots | None |
| Dimensions (HxWxD) | 1.75 x 17.5 x 10.56 |
| Service Category | 4 |
| | Cisco 2507 Router Specifications |
| Processor Speed (type) | 20 MHz (68030) |
| Flash Memory | 8-MB dual Flash bank option (default)
16 MB (max) |
| DRAM Memory | 4 MB, upgrades to 8 or 16 MB |
| Power Supply | AC, with optional DC or redundant power supply (RPS) |
| Fixed LAN Ports (connections) | 16-port Ethernet hub |
| Fixed WAN Ports (connections) | 2-port sync serial |
| Slots | None |
| Dimensions (HxWxD) | 1.75 x 17.5 x 10.56 |
| Service Category | 4 |
| | Cisco 2509 Router Specifications |
| Processor Speed (type) | 20 MHz (68030) |
| Flash Memory | 8-MB dual Flash bank option (default)
16 MB (max) |
| DRAM Memory | 4 MB, upgrades to 8 or 16 MB |
| Power Supply | AC, with optional DC or redundant power supply (RPS) |
| Fixed LAN Ports (connections) | 1-port Ethernet |
| Fixed WAN Ports (connections) | 2-port sync serial
8-port async |
| Slots | None |
| Dimensions (HxWxD) | 1.75 x 17.5 x 10.56 |
| Service Category | 4 |
