B-Series

Realize adaptive networking with the cost-effective and flexible B-Series.

The B-Series is a cost-effective, feature-rich, stackable switch family that provides a broad set of features today and will continue to deliver benefits well into the future. The B-Series is a scalable, high-performance Gigabit Ethernet switch that provides support for the bandwidth-intensive and latency-sensitive requirements of today’s demanding business applications. The B5 is an excellent choice for environments that require complete multilayer switching capabilities and support for high-density 10/100/1000 Ethernet ports, cost-effective 10GE uplinks, dual IPv4/IPv6 management, basic routing and policy-based automation capabilities for advanced edge deployments.

Customizable Dynamic Policy with Basic Layer 3 Routing.

  • Future-proofed with 802.3at high-power PoE support
  • Automatic discovery and deployment of VoIP services
  • Dynamic, role-based policy support
  • High-availability stacking assures reliable network operations
  • Automated management features reduce operational costs
  • Investment protection via comprehensive lifetime warranty
Business alignment
  • Aligns network resource utilization with business goals and priorities
  • Reliable network operation for mission-critical applications
Operational efficiency
  • Management automation capabilities reduce network operational expenses
  • Automatic discovery and deployment of VoIP services
  • Role-based policies simplify user management and reduce network operational expenses
Security
  • Audits network for adherence to compliance regulations, such as PCI or HIPAA
  • Securely allocates network resources according to user roles
  • Network security maintained concurrently with user mobility
Support and service
  • Industry-leading customer satisfaction and first-call resolution rates
  • Personalized services, including site surveys, network design, installation, and training
  • Comprehensive lifetime warranty, including feature upgrades and more
Specifications for B5G124-24; B5G124-24P2; B5G124-48; B5G124-48P2
Performance
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
Throughput Capacity wire- speed Mpps
(switch / stack)		 35.7Mpps / 285.7Mpps 35.7Mpps / 285.7Mpps 71.4Mpps / 571.4Mpps 71.4Mpps / 571.4Mpps
Switching Capacity (switch/stack) 48Gbps (35.7Mpps ) / 384Gbps (285.7Mpps) 48Gbps (35.7Mpps ) / 384Gbps (285.7Mpps) 96Gbps (71.4Mpps) / 768Gbps (571.4Mpps) 96Gbps (71.4Mpps) / 768Gbps (571.4Mpps)
Stacking Capacity (switch/stack) 48Gbps (35.7Mpps) / 384Gbps (285.7Mpps) 48Gbps (35.7Mpps) / 384Gbps (285.7Mpps) 48Gbps (35.7Mpps) / 384Gbps (285.7Mpps) 48Gbps (35.7Mpps) / 384Gbps (285.7Mpps)
Aggregate Throughput Capacity
(switch/stack)		 96Gbps (71.4Mpps) / 768Gbps (571.4Mpps) 96Gbps (71.4Mpps) / 768Gbps (571.4Mpps) 144Gbps (107.1Mpps) / 1,152Gbps (857.1Mpps) 144Gbps (107.1Mpps) / 1,152Gbps (857.1Mpps)
PoE Specifications
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
N/A Yes N/A Yes
N/A Yes N/A Yes
N/A 375 watts per switch with up to 30 watts per port
Per-port switch power monitor:
Enable/disable
Priority safety
Overload and short-circuit protection		 N/A 375 watts per switch with up to 30 watts per port
Per-port switch power monitor:
Enable/disable
Priority safety
Overload and short-circuit protection
Physical Specifications
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
Dimensions (H x W x D) H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)		 H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)		 H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)		 H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)
Net Weight 4.92 kg (10.85 lb) 6.10 kg (13.45 lb) 5.31 kg (11.70 lb) 6.49 kg (14.30 lb)
MTBF 394,679 hours 345,093 hours 308,359 hours 260,806 hours
Physical Ports (24) 10/100/1000 auto-sensing, auto-negotiating MDI/MDI-X RJ45 ports
(4) Combo SFP ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector		 (24) 10/100/1000 PoE
(.af + .at) auto-sensing, auto-negotiating MDI/MDI-X RJ45 ports
(4) Combo SFP ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector		 (48) 10/100/1000 auto-sensing, auto-negotiating MDI/MDI-X RJ45 ports
(4) Combo SFP ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector		 (48) 10/100/1000 PoE (.af + .at) auto-sensing, auto-negotiating
MDI/MDI-X RJ45 ports
(4) Combo SFP ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector
Power Requirements
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
Normal Input Voltage 100 – 240 VAC 100 – 240 VAC 100 – 240 VAC 100 – 240 VAC
Input Frequency 50 – 60 Hz 50 – 60 Hz 50 – 60 Hz 50 – 60 Hz
Input Current 2 A Max 7.5 A Max 2 A Max 7.5 A Max
Power Consumption 48 watts 93 watts 76 watts 125 watts
Temperature
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
IEC 6-2-1 Standard Operating Temperature 0° C to 50° C (32° F to 122° F) 0° C to 50° C (32° F to 122° F) 0° C to 50° C (32° F to 122° F) 0° C to 50° C (32° F to 122° F)
IEC 6-2-14
Non-Operating Temperature		 -40° C to 70° C (-40° F to 158° F) -40° C to 70° C (-40° F to 158° F) -40° C to 70° C (-40° F to 158° F) -40° C to 70° C (-40° F to 158° F)
Heat Dissipation 164BTUs/Hr 318BTUs/Hr 258BTUs/Hr 427BTUs/Hr
Humidity
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
Operating Humidity 5% to 95% non-condensing 5% to 95% non-condensing 5% to 95% non-condensing 5% to 95% non-condensing
Vibration
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
IEC 68-2-6, IEC 68-2-36 IEC 68-2-6, IEC 68-2-36 IEC 68-2-6, IEC 68-2-36 IEC 68-2-6, IEC 68-2-36
Shock
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
IEC 68-2-29 IEC 68-2-29 IEC 68-2-29 IEC 68-2-29
Drop
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
IEC 68-2-32 IEC 68-2-32 IEC 68-2-32 IEC 68-2-32
Altitude
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
Operating 10,000 ft (3,048 m) 10,000 ft (3,048 m) 10,000 ft (3,048 m) 10,000 ft (3,048 m)
Non-operating 15,000 ft (4,572 m) 15,000 ft (4,572 m) 15,000 ft (4,572 m) 15,000 ft (4,572 m)
Acoustics
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
Front of switch (normal operation) 44.5 dB 45 dB 45.5 dB 44.5 dB
Agency and Regulatory Standard Specifications
B5G124-24
B5G124-24P2
B5G124-48
B5G124-48P2
Safety UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1 UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1 UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1 UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1
EMC FCC Part 15 (Class A), ICES-003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3 FCC Part 15 (Class A), ICES-003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3 FCC Part 15 (Class A), ICES-003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3 FCC Part 15 (Class A), ICES-003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3
Environmental 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS) 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS) 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS) 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS)
Specifications for B5K125-24; B5K125-24P2; B5K125-48; B5K125-48P2
Performance
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
Throughput Capacity wire-speed Mpps
(switch/stack)		 65.5Mpps / 523.8Mpps 65.5Mpps / 523.8Mpps 101.2Mpps / 809.5Mpps 101.2Mpps / 809.5Mpps
Switching Capacity (switch/stack) 88Gbps (65.5Mpps) / 704Gbps (523.8Mpps) 88Gbps (65.5Mpps) / 704Gbps (523.8Mpps) 136Gbps (101.2Mpps) / 1,088Gbps (809.5Mpps) 136Gbps (101.2Mpps) / 1,088Gbps (809.5Mpps)
Stacking Capacity (switch/stack) 48Gbps (35.7Mpps) / 384Gbps (285.7Mpps) 48Gbps (35.7Mpps ) / 384Gbps (285.7Mpps) 48Gbps (35.7Mpps) / 384Gbps (285.7Mpps) 48Gbps (35.7Mpps) / 384Gbps (285.7Mpps)
Aggregate Throughput Capacity
(switch/stack)		 136Gbps (101.2Mpps) / 1,088Gbps (809.5Mpps) 136Gbps (101.2Mpps) / 1,088Gbps (809.5Mpps) 184Gbps (136.9Mpps) / 1,472Gbps (1,095.2Mpps) 184Gbps (136.9Mpps) / 1,472Gbps (1,095.2Mpps)
PoE Specifications
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
802.3af Interoperable N/A Yes N/A Yes
802.3at Interoperable N/A Yes N/A Yes
System Power N/A 375 watts per switch with up to 30 watts per port
Per-port switch power monitor:
Enable/disable
Priority safety
Overload and short-circuit protection		 N/A 375 watts per switch with up to 30 watts per port
Per-port switch power monitor:
Enable/disable
Priority safety
Overload and short-circuit protection
Physical Specifications
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
Dimensions (H x W x D) H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)		 H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)		 H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)		 H: 4.4 cm (1.73”)
W: 44.1 cm (17.36”)
D: 36.85 cm (14.51”)
Net Weight 4.92 kg (10.85 lb) 6.10 kg (13.45 lb) 5.31 kg (11.70 lb) 6.49 kg (14.30 lb)
MTBF 374,029 hours 328,905 hours 297,808 hours 252,940 hours
Physical Ports (24) 10/100/1000 auto-sensing, auto-negotiating MDI/MDI-X RJ45 ports
(2) Combo SFP ports
(2) 10GE ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector		 (24) 10/100/1000 PoE (.af + .at) auto-sensing, auto-negotiating MDI/MDI-X RJ45 ports
(2) Combo SFP ports
(2) 10GE ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector		 (48) 10/100/1000 auto-sensing, auto-negotiating MDI/MDI-X RJ45 ports
(2) Combo SFP ports
(2) 10GE ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector		 (48)10/100/1000 PoE (.af + .at) auto-sensing, auto-negotiating MDI/MDI-X RJ45 ports
(2) Combo SFP ports
(2) 10GE ports
(2) dedicated stacking ports
(1) DB9 console port
(1) RPS connector
Power Requirements
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
Normal Input Voltage 100-240 VAC 100-240 VAC 100-240 VAC 100-240 VAC
Input Frequency 50–60Hz 50–60Hz 50–60Hz 50–60Hz
Input Current 2A Max 7.5A Max 2A Max 7.5A Max
Power Consumption 59 watts 98 watts 94 watts 125 watts
Temperature
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
IEC 6-2-1 Standard Operating Temperature 0° C to 50° C (32° F to 122° F) 0° C to 50° C (32° F to 122° F) 0° C to 50° C (32° F to 122° F) 0° C to 50° C (32° F to 122° F)
IEC 6-2-14
Non-Operating Temperature		 -40° C to 70° C (-40° F to 158° F) -40° C to 70° C (-40° F to 158° F) -40° C to 70° C (-40° F to 158° F) -40° C to 70° C (-40° F to 158° F)
Heat Dissipation 200BTUs/Hr 335BTUs/Hr 321BTUs/Hr 427BTUs/Hr
Humidity
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
Heat Dissipation 200BTUs/Hr 335BTUs/Hr 321BTUs/Hr 427BTUs/Hr
Vibration
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
IEC 68-2-6, IEC 68-2-36 IEC 68-2-6, IEC 68-2-36 IEC 68-2-6, IEC 68-2-36 IEC 68-2-6, IEC 68-2-36
Shock
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
IEC 68-2-29 IEC 68-2-29 IEC 68-2-29 IEC 68-2-29
Drop
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
IEC 68-2-32 IEC 68-2-32 IEC 68-2-32 IEC 68-2-32
Acoustics
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
Front of switch (normal operation) 45.5 dB 45 dB 46 dB 45.5 dB
Altitude
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
Operating 10,000 ft (3,048 m) 10,000 ft (3,048 m) 10,000 ft (3,048 m) 10,000 ft (3,048 m)
Non-operating 15,000 ft (4,572 m) 15,000 ft (4,572 m) 15,000 ft (4,572 m) 15,000 ft (4,572 m)
Agency and Regulatory Standard Specifications
B5K125-24
B5K125-24P2
B5K125-48
B5K125-48P2
Safety UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1 UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1 UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1 UL 60950-1, CSA 22.1 60950, EN 60950-1, and IEC 60950-1
EMC FCC Part 15 (Class A), ICES- 003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3 FCC Part 15 (Class A), ICES- 003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3 FCC Part 15 (Class A), ICES- 003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3 FCC Part 15 (Class A), ICES- 003 (Class A), BSMI, VCCI V-3, AS/NZS CISPR 22 (Class A), EN 55022 (Class A), EN 55024, EN 61000-3-2, and EN 61000-3-3
Environmental 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS) 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS) 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS) 2002/95/EC (RoHS Directive), 2002/96/EC (WEEE Directive), Ministry of Information Order #39 (China RoHS)
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