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Implementing
international standard-based ITU-T/ETSI G.SHDSL transmission
(G.991.2) with robust IP routing, concurrent bridging
functions and built-in 4-port Ethernet switch, NBG400
Series Business Gateways are perfect for mission-critical
applications such as campus networking, multimedia
services and network gateway access.
Interoperating with NexComm's Ethernet-based SHDSL Mini-DSLAM NS4024G, the
NBG400 Series provide a cost-effective altemative of Ethernet networking of
Point to Multi-Point application for SMBs that have multiple buildings in a
campus-like environment. By leveraging Tag-based VLAN an STP capabilities of
the NBG400 Series, the campus ensures a highly secure and reliable network.
By utilizing the Ethernet-based QoS capabilities the campus can take advantage
of voice and video applications. This application requires no new infrastructure,
and results in a low-cost, plug-and-play solution with low management overhead.
Features
of Tag-based VLAN
| - |
Fully complying with IEEE
802.1P/Q |
| - |
Supporting 16 concurrent
VLANs & 4 Levels of QoS |
| - |
Traffic control for QoS
demand for advanced services such as Voice
over IP (VoIP) and video conferencing |
| - |
Suitable for Metro Ethernet
Service provisioning |
 View Datasheet
Features
Product
Line
| * |
NBG420 2-Wire SHDSL Business
Gateway |
| - |
SHDSL speeds to 2.3Mbps |
| - |
Broadband single copper
pair connectivity with TC-PAM full-duplex high
speed
symmetric data rates and distances exceeding
7.2 kilometers |
| * |
NBG440 4-wire SHDSL Business
Gateway |
| - |
Inverse Multiplexing(iMUX)
2 copper pair connectivity |
| - |
Boosting up SHDSL speeds
to 4.6 Mbps |
| - |
2-pair SHDSL line protection |
Extra Performance Benefits
| * |
Ethernet-based architecture:
Providing 10% greater throughput without paying
cell tax(ATM Cell Overhead) |
| * |
Maximizing full bandwidth
wire-speed performance |
NAT, DHCP, STP, Security
| * |
Powerful routing and
concurrent bridging functing with IP filtering
make shared
Internet connectivity simple and secure |
| * |
Work as both bridge and
router |
Advanced Romote Management
| * |
Remote installation,
operation and management |
| * |
Once NBG400 Series are
configured to NS4024G, NBG400 Series can be
managed
and monitored for operation and traffic status
remotely
|
| * |
Capability to download and
restore the latest configuration of NBG400
Series from
NS4024G by utilizing proprietry protocol without the need of IP
|
| * |
Plug-and-play with auto
configuration, No truck-roll required |
IP Multicast
| * |
IGMP Snooping |
| * |
Real-time multimedia
application such as video conferencing, corporate
communication, distance learning, and distribution
of software, stock quotes and
news |
Interoperable Nexpeed DSLAM Series
| * |
NS4024G : 24-port SHDSL
Mini-DSLAM |
| * |
NS3048 : 48-port SHDSL
DSLAM |
| * |
NR104G : 4-port SHDSL iMUX
Router / Concentrator |
Specification
POWER REQUIREMENT
External power supply module
- Input : AC 85 to 264V, 45 to 65Hz
- Output : DC +5V, 2Av
MECHANICAL
Size : 238mm(W) x 182mm(D) x 47mm(H)
Weight : 511g
Mount : Stackable desktop
ENVIRONMENT
Operating Temp. 0°C to 50°C
Storage Temp. -20°C to 70°C
Humidity 5%~95%, non-condensing
LINE INTERFACE
| SHDSL : |
One pair SHDSL (RJ-45 Jack)
for NBG420GH |
| |
Two-pair SHDSL (RJ-45 Jack)
for NBG440GH |
| LAN : |
10/100 Base-T with RJ45, MDI/MDI-X
4 Ports |
| |
Full support of maximum wire-speed
performance |
DATA RATE
| NBG420 : |
200Kbps to 2.3Mbps at 64Kbps
step |
| NBG440 : |
384Kbps to 4.6Kbps at 128Kbps
step |
| |
Two-Pair SHDSL Line Protection & Load
balancing
|
Diagnostic LED
Power : On/Off
4W On (4 wire mode only for NBG440)
LAN Activity, Link (1~4), WAN Sync1, Sync2, ACT
Bridging
1K MAC addresses
MAC address filtering
MAC address limiting
Flooding control
Spanning Tree Protocol (802. 1d)
Rapid Spanning Tree Protocol (802.1w)*
Per VLAN Spanning Tree (PVST) support
IP Multicast (IGMP snooping)*
Routing
Numbered/Unnumbered WAN interface
Dynamic & Static IP, RIP1 & RIP2
Proxy ARP, NAT, DHCP Server/Relay
PAP, CHAP for Security
VLAN
Port-based VLAN
IEEE 802.1Q Tag-based VLAN
No. of IEEE 802.1Q tag-based VLAN : 16
GVRP support*
QoS
Traffic Classification Based on :
- Port-based priority
- VLAN priority field in VLAN tagged frame
- DS/TOS field in IP packet
2 strict priority queues
Traffic control for each queue
MANAGEMENT
Local consol with DB-9 port
SNMP v1, Telnet
Web-based management
Automatic CPE management
- Remote Monitoring & Configuration
BACK PANNEL
 |
ⓐ To
Power : DC connector
ⓑ Power Switch
ⓒ To LAN : 4 Ports RJ-45 Jack
ⓓ To Control Terminal (Console) : DB-9 port
ⓔ To Line : RJ-45 Jack |
All future options are marked with
'*'. Please contact NexComm's sales division or authorized
dealer in your location for futher details.
Interoperability
NEXPEED NBG 400 Series is interoperable with major IP based DSLAM vendors.
Please contact your authorized resellers for the latest interoperability
information.
Warranty
NexComm Systems, Inc. warrants NEXSPEED product family to be free from defects in workmanship and materials, under normal use and service, for a period of one year from the date of purchase for NexComm Systems Inc. or its Authorized Resellers.
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NEXPEED is registered trademark of NexComm Systems Inc. All other trademarks are property of their respective owners. Specifications are subject to change without prior notice.
Quality Management
NexComm Systems, Inc has been certified ISO9001 from European Quality Assurance Ltd. authorized agent of International Standard Organization(ISO)9001 Quality Management Standard.
 
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