| CBS250-48T-4G-EU Datasheet |
| Feature |
Description |
| Capacity in millions of packets per second (mpps) (64-byte packets) |
77.38 |
| Switching capacity in gigabits per second (Gbps) |
104.0 |
| RJ-45 ports |
48 10/100/1000 ports |
| Combo ports (RJ-45 + SFP) |
4 Gigabit SFP |
| Flash |
256 MB |
| CPU |
800 MHz ARM |
| CPU memory |
512 MB |
| Packet buffer |
3 MB |
| Unit dimensions (W x H x D) |
445 x 273 x 44 mm (17.5 x 10.73 x 1.73 in) |
| Unit weight |
3.95 kg (8.71 lb) |
| Power |
100 to 240V 50 to 60 Hz, internal |
| System power consumption |
110V=48.27W
220V=48.64W |
| Heat dissipation (BTU/hr) |
165.96 |
| Certification |
UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A |
| Operating temperature |
23° to 122°F (-5° to 50°C) |
| Storage temperature |
-13° to 158°F (-25° to 70°C) |
| Operating humidity |
10% to 90%, relative, noncondensing |
| Storage humidity |
10% to 90%, relative, noncondensing |
| Fan (number) |
1 |
| Acoustic noise |
25°C: 29.7 dBA |
| MTBF at 25°C (hours) |
1,452,667 |
| Layer 2 switching |
| Spanning Tree Protocol (STP) |
Standard 802.1d spanning tree support
Fast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by default
Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported
Per-VLAN Spanning Tree Plus (PVST+); 126 instances are supported
Rapid PVST+ (RPVST+); 126 instances are supported |
| Port grouping/link aggregation |
Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
Up to 4 groups
Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad Link Aggregation Group (LAG) |
| VLAN |
Support for up to 255 active VLANs simultaneously
Port-based and 802.1Q tag-based VLANs
Management VLAN
Guest VLAN |
| Voice VLAN |
Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver networkwide zero-touch deployment of voice endpoints and call control devices |
| Layer 3 routing |
| IPv4 routing |
Wire-speed routing of IPv4 packets
Up to 32 static routes and up to 16 IP interfaces
|
| IPv6 routing |
Wire-speed routing of IPv6 packets |
| Layer 3 interface |
Configuration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interface |
| Dynamic Host Configuration Protocol (DHCP) relay at Layer 3 |
Relay of DHCP traffic across IP domains |
| User Datagram Protocol (UDP) relay |
Relay of broadcast information across Layer 3 domains for application discovery or relaying of Bootstrap Protocol (BootP)/DHCP packets |
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