| Product code | SF250-48HP |
| Device type | Switch, 100 M, 48 ports |
| Enclosure type | Rack-mountable, 1 RU |
| Ports | 48 x 10/100, 2 x Gigabit SFP/RJ-45, 2 x Gigabit SFP |
| Power over Ethernet (PoE) | PoE+ (48 ports, 195W) |
| Performance | 17.6-Gbps switching capacity, 13.1-Mpps forwarding performance (64-byte packet size) |
| MAC address table size | 8k entries |
| Capacity | 256 active VLANs |
| Jumbo frame | Yes |
| Remote management protocol | SNMP, RMON, HTTP, HTTPS, TFTP, Telnet, SSH |
| Features | Layer 2 switching, Layer 3 switching, DHCP support, BOOTP support, VLAN support, IGMP snooping,
Syslog support, port mirroring, DiffServ support, Weighted Round Robin (WRR) queuing, Broadcast Storm Control, IPv6 support, Multicast Storm Control, Unicast Storm Control, SNTP support, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP), Multiple Spanning Tree (MSTP), Trivial File Transfer Protocol (TFTP) support, access control list (ACL) support, quality of service (QoS), jumbo frames support, MLD snooping, SNMP, RMON, SNTP, Cisco Discovery Protocol, Auto SmartPorts |
| Compliant standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q,
IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3af PoE, IEEE 802.3at PoE, IEEE 802.3az |
| RAM | 512 MB |
| Flash memory | 256 MB flash |
| Status indicators | System, link/speed per port |
| Interfaces | 48 x 10BASE-T/100BASE-TX, RJ-45 (PoE+), 2 x Gigabit SFP/RJ-45, 2 x Gigabit SFP |
| Power device | Power supply, internal |
| Voltage required | AC 120/230V (50/60 Hz) |
| Width | 17.3 in (440 mm) |
| Depth | 13.78 in (350 mm) |
| Height | 1.45 in (44 mm) |
| Weight | 10.87 lb (4.93 kg) |
| Mounting kit | Included |
| MTBF | 286,556 hours |
| Compliant standards | UL 60950, FCC Part 15 A, CSA 22.4 |
| Service and support | Limited lifetime warranty |
| Service and support details | Limited warranty: lifetime; technical support (Web): 1 year; technical support (phone consulting): 1 year |
| Minimum operating temperature | 32°F (0°C) |
| Maximum operating temperature | 122°F (50°C) |
| Humidity range operating | 10-90% (noncondensing) |
| Minimum storage temperature | -4°F (-20°C) |
| Maximum storage temperature | 158°F (70°C) |
| Humidity range storage | 10-90% (noncondensing) |
