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5-100-00211028

02/12

F o r   m o r e   p r o d u c t   i n f o r m a t i o n ,   v i s i t   u s   o n   t h e   w e b   a t   w w w . Z y X E L . c o m

Copyright © 2012 ZyXEL Communications Corp. All rights reserved. ZyXEL, ZyXEL logo are registered trademarks of 
ZyXEL Communications Corp. All other brands, product names, or trademarks mentioned are the property of their 
respective owners. All specifications are subject to change without notice.

GS-105B v2

GS-108B v2

xDSL/Cable 

Modem

P-600 ser

ies

L

AN

DSL

INTERN

ET

1

2

3

4

PWR/SY

S

High-Priority Port

Medium-Priority Ports

General Ports

2-Bay Power Plus 
Media Server

NSA325

2-Bay Power Plus 
Media Server

NSA325

xDSL/Cable 

Modem

P-600 ser

ies

L

AN

DSL

INTERN

ET

1

2

3

4

High-Priority Ports

Medium-Priority Ports

General Ports

PC

Laptop

IP Phone

IP Phone

PC

Laptop

PC

Laptop

PC

Laptop

Data

VoIP

Internet/Data

Data

VoIP

Internet/Data

GS-105B v2

GS-108B v2

5/8-Port Desktop Gigabit 
Ethernet Switch

GS-105B v2

GS-108B v2

5/8-Port Desktop Gigabit 
Ethernet Switch

Green switch saves energy

Compliant with the IEEE 802.3az Energy Efficient Ethernet standard, the GS-105B v2/GS-108B v2 provides power-saving benefits without compromising 

performance. The GS-105B v2/GS-108B v2 can automatically adjust power consumption according to the number of active, connected network devices and 

cable length; that is, it consumes less power if fewer network devices are connected and active, or when the length of Ethernet cable is shorter.

System Specifications

Standard

• IEEE 802.3 10BASE-T Ethernet

• IEEE 802.3u 100BASE-TX Fast Ethernet

• IEEE 802.3ab 1000BASE-T Gigabit Ethernet

• IEEE 802.3 Nway auto-negotiation

• IEEE 802.3x full duplex operation and flow  

 control

• IEEE 802.3az Energy Efficient Ethernet

Performance

• Data transfer rate (half duplex/full duplex):

 

 Ethernet: 10/20 Mbps

 

 Fast Ethernet: 100/200 Mbps

 

 Gigabit Ethernet: 1000/2000 Mbps

• MAC address table: 

 

 GS-105B v2: 2 K

 

 GS-108B v2: 8 K

• Memory buffer:

 

 GS-105B v2: 128 KB

 

 GS-108B v2: 128 KB

• Switching fabric (non-blocking):

 

 GS-105B v2: 10 Gbps

 

 GS-108B v2: 16 Gbps

Features

• Auto-MDI/MDIX in all ports

• Transmission method:

 

 Store-and-forward architecture

• Loop detection support

• Port-based QoS support

• Jumbo frame support up to 9 KB

• IGMP snooping v1/v2 support (GS-105B v2)

Hardware Specifications

Interface

• GS-105B v2: Five RJ-45 10/100/1000 Mbps   

  Ethernet ports with auto MDI/MDIX support

• GS-108B v2: Eight RJ-45 10/100/1000 Mbps  

  Ethernet ports with auto MDI/MDIX support 

QoS Ports

• GS-105B v2: One high-priority QoS port and  

  two medium-priority QoS ports 

• GS-108B v2: Two high-priority QoS ports and  

  two medium-priority QoS ports  

LED Indicator

• PWR: Power

• Per port: Link/Activity

Power Supply

• GS-105B v2:

 

 Input: 100-240 V AC

 

 Output: 9 V DC, 0.6 A 

• GS-108B v2:

 

 Input: 100-240 V AC

 

 Output: 9 V DC, 0.85 A

Power Consumption

• GS-105B v2: 3.5 watt max.

• GS-108B v2: 5.5 watt max. 

Physical Specifications

• Item dimensions (WxDxH):

 

164 x 98 x 26 mm (6.46” x 3.86” x 1.02”)

• Item weight:

 

 GS-105B v2: 369 g (0.81 lb.)

 

 GS-108B v2: 392 g (0.86 lb.)

• Packing dimensions (WxDxH): 

 

170 x 108 x 92 mm (6.70” x 4.25” x 3.62”) 

• Packing weight: 

 

 GS-105B v2: 537 g (1.18 lb.)

 

 GS-108B v2: 559 g (1.23 lb.)

Environmental Specifications

Operating Environment

• Temperature: 0°C to 40°C (32°F to 104°F) 

• Humidity: 10% to 90% (Non-condensing)

Storage Environment

• Temperature: -40°C to 70°C (-40°F to 158°F)

• Humidity: 5% to 90% (Non-condensing)

Certification

• CE, FCC Class B, C-Tick, BSMI

Package Contents

• Gigabit switch 

• Power adapter 

• Quick start guide 

• Warranty card

Specifications

Application Diagram

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