| Slots per chassis | Fixed form factor |
| Rack size | 1 RU |
| Maximum capacity | Up to 60 Gbps |
| Size (H x W x D) | NCS 520 NID: 1.75 x 12.2 x 9 in.
(4.45 x 30.99 x 22.86 cm)
NCS 520 Carrier Ethernet switch: 1.75 x 17.5 x 9 in.
(4.45 x 44.5 x 22.86 cm) |
| Weight | NCS 520 NID: 6.33 lb. (2.87 kg) for DC variant; 6.22 lb. (2.82 kg) for AC variant
NCS 520 Carrier Ethernet switch: 8.16 lb. (3.7 kg) for DC variant; 8.38 lb. (3.8 kg) for AC variant |
| Power | AC or DC
NCS 520 NID: single AC power supply or dual DC power supplies
NCS 520 Carrier Ethernet switch: dual AC or dual DC power supplies |
| Fans | 3 fans (2+1 redundant) |
| Air flow | Front to back |
| Route Switch Processor | - |
| Processor (CPU) | 1-GHz quad-core CPU (LS1043A) |
| Storage | - |
| RAM | 4 GB |
| Software | IOS XE |
