| Selection Dimensions | reason |
| Power supply design | Built-in power supply is preferred. It is crucial to verify the total PoE power (e.g., 65W or 120W) to ensure it can power all connected devices (such as cameras and access points). |
| BOSA (Optical Interface) | Match terminals by color: Blue connectors correspond to SC/UPC (pure data-driven), green connectors correspond to SC/APC (commonly used for CATV television services). |
| Number of electrical ports | Procurement should be made on demand, with appropriate reserves. The required number of gigabit ports should be clearly defined (e.g., 1GE or 4GE), and 1-2 extra ports should be reserved for areas with expansion needs. |
| Lightning protection level | Consider the deployment environment: 2KV is sufficient for indoor computer rooms; if deployed outdoors, in factories, or on monitoring poles, be sure to choose a high lightning protection standard of 4KV or even 6KV. |
