Accton Technology VM2548 User Manual Page 16
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About the VDSL Switch-VS2512A
1-4
Traffic Priority
This switch provides Quality of Service (QoS) by prioritizing each packet based on
the required level of service, using four distinct categories with Weighted Round
Robin Queuing. It uses IEEE 802.1p and 802.1Q tags to prioritize incoming traffic
based on input from the end-station application. These functions can be used to
provide independent priorities for delay-sensitive data and best-effort data.
Description of Hardware
VDSL Switch-VS2512A
Accton’s VDSL Switch-VS2512A together with the VDSL Splitter-VM2524/VM2548
combines data and voice signals for delivery over standard telephone cable to
multiple users in residential or commercial buildings. Ethernet data signals are
received on the switch uplink port and passed to 12 VDSL lines via 12 internal
Ethernet ports. These 12 VDSL lines are then passed to the splitter via the RJ-21
connector on the rear panel.
The switch supports the following optional modules: 1-port 1000BASE-T, 1-port
1000BASE-SX, 1-port 1000BASE-LX, 1-port 1000BASE-X GBIC, 4-port
100BASE-FX multimode and single-mode, 1-port 100BASE-FX mutimode, 1-port
10/100BASE-TX, or 4-port 10/100Base-TX. The fiber module ports can provide
direct connection to your ISP with fiber optic cable. In a switch stack, any of the
module ports can also function as uplinks to the backbone, or as regular switch ports
for networking.
Speed, duplex mode, and flow control for the optional module, and GBIC transceiver
ports are shown below.
Note: If the attached device does not support auto-negotiation, you will have to manually
configure the other device to match the duplex mode and speed, otherwise it will
default to half duplex.
The switch also includes a DB-9 console port on the front panel for switch
configuration. It also has two FireWire (IEEE 1394) ports that can be used to stack
up to 8 units for common management access. When multiple units are stacked
together, you can manage the entire stack by connecting to the console port on the
Master unit in the stack. The push button on the front panel is used to select the
Master unit in the stack.
Note: Only one unit in the stack can act as Master.
Port Type Speed Duplex Mode Flow Control
100BASE-FX 100 Mbps full duplex auto
10/100BASE-TX auto (10/100 Mbps) auto auto
1000BASE-T auto (10/100/1000 Mbps) full duplex at 1000 Mbps
full/half duplex at 10/100 Mbps
auto
1000BASE-SX 1000 Mbps full duplex auto
1000BASE-LX 1000 Mbps full duplex auto
1000BASE-LH 1000 Mbps full duplex auto
- VDSL Switch-VS2512A 1
- VDSL Splitter-VM2524 1
- VDSL Splitter-VM2548 1
- Installation Guide 1
- Accton Technology Corporation 5
- Limited Warranty 6
- Taiwan BSMI Class A 8
- Safety Compliance 9
- Contents 11
- Overview 13
- About the VDSL Switch-VS2512A 14
- VDSL Technology 14
- Management Options 15
- Switch Architecture 15
- Description of Hardware 16
- Expansion Module 17
- 100-240V ~ 50-60 Hz 1A 17
- Ethernet-over-VDSL CPE 18
- Status LEDs 19
- VM2512A-1LX-SC-S 20
- 1000BASE-LX Singlemode Module 20
- VM2512A-1GX-GBIC 20
- 1000BASE-X GBIC Module 20
- VM2512A-1GT 21
- 1000BASE-T Module 21
- 10/100BASE-TX Module 21
- VM2512A-1TX 21
- VM2512A-4FX-MTRJ-S 23
- 100BASE-FX Singlemode Module 23
- Key Features 24
- Chapter 2: Network Planning 27
- Network Planning 28
- Internet Connections 28
- Sample Applications 29
- Making VLAN Connections 29
- Application Notes 30
- Preparing the Site 31
- Equipment Checklist 31
- Mounting 32
- VDSLSwitch 33
- Installing a GBIC Transceiver 36
- Powering On the Switch 37
- Twisted-Pair Devices 39
- ES2002-TS 40
- VDSL CPE 40
- Fiber Optic Devices 41
- Making Network Connections 42
- Appendix A: Troubleshooting 43
- Installation 44
- In-Band Access 44
- Appendix B: Cables 45
- 1000BASE-T Pin Assignments 47
- 1000BASE-T Cable Requirements 47
- RJ-21 Port Pin Assignments 48
- Console Port Pin Assignments 49
- Appendix C: Specifications 51
- Specifications 52
- Switch Features 52
- VDSL Switch 53
- Management Features 53
- Standards 53
- Compliances 53
- VDSL Splitter 54
- Slide-in Modules 55
- 1000BASE-T Extender Module 56
- 100BASE-FX Extender Modules 56
- Ordering Information 62
- Glossary 63
- VM2524, VM2548 72
- E072002-R01 72
- 150000010100A 72
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