| Hardware Specifications |
| Hardware Version |
2.0 |
| VDSL Interface |
8 VDSL2 RJ11 interfaces
8 POTS RJ11 interfaces |
| Copper Ports |
2 10/100/1000BASE-T RJ45 auto-MDI/MDI-X ports |
| SFP/mini-GBIC Slots |
2 1000BASE-X SFP interfaces, shared with Port-9 and Port-10 |
| Console |
1 RS232-to-RJ45 serial port (115200, 8, N, 1) |
| Transient Voltage Suppressor |
IEC 61000-4-2 (ESD): ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT): 40A (5/50ns)
IEC 61000-4-5 (Lightning): 24A (8/20μs) |
| Switch Architecture |
Store-and-Forward |
| Switch Fabric |
5.6Gbps/non-blocking |
| Switch Throughput |
4.16Mpps @64 bytes |
| Address Table |
8K entries |
| Shared Data Buffer |
256K bytes |
| Maximum Frame Size |
9K bytes |
| Flow Control |
Back pressure for half-duplex
IEEE 802.3x pause frame for full-duplex |
| LED |
VDSL2, PWR, SYS, LNK/ACT, 1000 |
| Reset Button |
< 5 sec: System reboot
> 10 sec: Factory default |
| Dimensions (W x D x H) |
404 x 174 x 44.5 mm, 1U height |
| Weight |
2.4 kg |
| Power Requirements |
100~240V AC, 50-60 Hz |
| Power Consumption/ Dissipation |
36 watts (max.)/112.8 BTU/hr |
| VDSL2 |
| VDSL2 Standard |
Complies with ITU-T G.993.1 and G.993.2.
Supports provisioning the VDSL optional band (25K to 138K Hz) usage |
| Band Plan |
Selectable band plan for each VDSL line on a per port basis
Band Plan A:
– Profile 998, Annex A of G.993.1; optimized for symmetric services
Band Plan B:
– Profile 997, Annex B of G.993.1; optimized for asymmetric services |
| Profile |
Selectable spectrum profile of 8a/b/c/d, 12a/b, 17a, and 30a for frequency bands (Annex A, B and C) defined in G.993.2 |
| Encoding |
VDSL-DMT |
| VDSL2 Features |
Selectable rate limit control
Selectable target SNR (Signal to Noise Ratio) mode
POTS voices passthrough |
| Layer 2 Function |
| Management Interface |
Console, Telnet, Web browser, SSL, SNMP v1, v2c, v3 |
| Gigabit Port Configuration |
Port disable/enable
Auto-negotiation
10/100/1000Mbps full and half duplex mode selection
Flow control disable/enable |
| Gigabit Port Status |
Display each port’s speed duplex mode, link status and flow control status
Auto-negotiation status, trunk status |
| Port Mirroring |
TX/RX/both
1 to 1 monitor |
| Bandwidth Control |
Ingress/Egress rate limit control
Gigabit Port:
• Allow to configure per 128Kbps
VDSL2 Port:
• Allow to configure per 5Mbps |
| VLAN |
IEEE 802.1Q tag-based VLAN, up to 256 VLANs groups, out of 4094 VLAN IDs
Port-based VLAN
GVRP, up to 128 dynamic VLAN groups
Q-in-Q tunneling
Private VLAN Edge (PVE/Protected port) with two protected port groups |
| Link Aggregation |
Static port trunk
IEEE 802.3ad LACP (Link Aggregation Control Protocol)
Supports 13 groups with 8 ports per trunk |
| QoS |
4 priority queue
Traffic classification based on
– Port priority
– 802.1p priority
– DSCP/TOS field in IP Packet
VoIP QoS by application protocol no. |
| IGMP Snooping |
IGMP (v1, v2) Snooping, up to 256 multicast groups |
| Access Control List |
IP-based Layer 3/Layer 4 ACL
Up to 220 ACL rule entries |
| Security |
Port Security (Disable per port of MAC address learning)
Static MAC, MAC filter, IP/MAC binding |
| SNMP MIBs |
RFC 1213 MIB-II
RFC 2863 Interface MIB
RFC 2665 EtherLike MIB
RFC 1493 Bridge MIB
RFC 2819 RMON MIB (Group 1, 2, 3,9) |
| Standards Conformance |
| Regulatory Compliance |
FCC Part 15 Class B, CE, VCCI |
| Standards Compliance |
IEEE 802.3: 10BASE-T
IEEE 802.3u: 100BASE-TX
IEEE 802.3z: 1000BASE- SX/LX
IEEE 802.3ab: 1000BASE-T
IEEE 802.3x: Flow control and back pressure
IEEE 802.3ad: Port trunk with LACP
IEEE 802.1D: Spanning Tree Protocol
IEEE 802.1w: Rapid Spanning Tree Protocol
IEEE 802.1p: Class of Service
IEEE 802.1Q: VLAN Tagging
IEEE 802.1x: Port Authentication Network Control
ITU-T:
G.993.1 (VDSL)
G.997.1
G.993.2 VDSL2
RFC 768: UDP
RFC 793: TFTP
RFC 791: IP
RFC 792: ICMP
RFC 2068: HTTP
RFC 1112: IGMP v1
RFC 2236: IGMP v2 |
| Cables |
• VDSL2: twisted-pair telephone wires (AWG24 or better) up to 1km
• 10/100BASE-TX: 2-pair UTP Cat.5, up to 100m (328ft)
• 1000BASE-T: 4-pair UTP Cat.5E, up to 100m
• 1000BASE-SX: 50/125µm and 62.5/125µm fiber-optic cable, up to 550m
• 1000BASE-LX: 9/125µm fiber optic cable, up to 10km 50/125µm and
62.5/125µm fiber-optic cable, up to 550m |
| Environment |
| Operating |
Temperature: -10 ~ 50 degrees C
Relative Humidity: 10~ 90% (non-condensing) |
| Storage |
Temperature: -20 ~ 70 degrees C
Relative Humidity: 10~ 90% (non-condensing) |
VC-820Mは、世界で長く使われ続けているVDSLスイッチです。既存の電話線を使用し、ホテル、旅館、マンション等のネットワークをVDSL方式で容易に構築することができます。LANの新設屋内工事の必要が無いため費用を抑えることができます。
