Overview

Network Management

Ethernet Service Aggregation

Multiservices and Wireless Backhaul

Ethernet Access Devices

Ethernet over TDM

Ethernet over SONET/SDH

ISG 140 and ISG 180 - Ethernet over NxT1/E1

• Carrier Ethernet over T1/E1 and NxT1/E1
• Delivers a revolutionary way to reach 90% more customer locations with Ethernet services
• Uses existing T1/E1 facilities and reduces leased access service fees
• Standard MLPPP or PDH/VCAT bonding allows T1s/E1s to be added as bandwidth needs grow
• Perfect for point-to-point and hub-and-spoke deployments
• Plug-and play design—easy to configure; easy to manage
• NEBS 3 certified
  

Most carriers today can deliver Ethernet services to their 'on-net' customers where there are fiber drops from existing network infrastructures. However, only 14% of all U.S. businesses today are reachable via fiber, while the remaining 90% are reachable only by copper (T1 or E1 connections). The ISG 140 and ISG 180 are tailored to reach off-net customers easily and economically using existing T1/E1 lines. The ISG 140 offers highly manageable 10/100 customer access and up to four T1/E1s (eight T1/E1s for the ISG 180) for the network connection. These T1/E1s are bonded using either standard Multilink Point-to-Point Protocol (MLPPP) or Plesiochronous Digital Hierarchy/Virtual Concatenation (PDH/VCAT - offered with ISG 140V and ISG 180V), offering up to 12 Mb/s (T1) or 16 Mb/s (E1) of service. Additional lines can be added as necessary, and with a simple-to-use Graphical User Interface (GUI), provisioning new circuits has never been easier.

Additionally, Overture Networks  EdgeAware™ management suite delivers a robust service that is always up, easy to manage and well-suited to delivering quick problem diagnoses. The EdgeAware  suite provides management tools at the customer demarcation point, including remote loopback testing, as well as cable integrity testing to determine if subscriber-facing Ethernet ports or cables have failed. This allows providers to respond quickly to failures by taking faulty links or ports out-of-service remotely and restoring them when the fault is cleared. The result is significant savings from having to make costly truck rolls to each location for every fault.


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Flexible and Differentiated Ethernet Solutions
The ISG 140 and ISG 180 provide economical point-to-point or, when paired with an ISG 2200, an ISG 5000 or other standards-based switches, hub-and-spoke Ethernet services to customer locations that can only be reached through T1 and E1 circuits. Offering business-class Ethernet services by providing strong Class of Service (CoS) features, the ISG 140 and ISG 180 offer much more than raw Ethernet transport and can be used for:

• Full range of 4,095 Virtual LANs
• Layer 2 Virtual Private Networks (VPNs)
• Traffic prioritization and classification

For example, the advanced traffic classification features of the ISG 140 or ISG 180 can give Voice over IP (VoIP) traffic priority over Internet access traffic. The ISGs support up to ten rule-based classifications based on any of the following inputs: VLAN ID, VLAN P-bits, ToS bits and DiffServ Code Points. In addition to this classification scheme, rate limiting and policing are also provided to round out a full suite of tools for customer provisioning and service.

Easy Fit into Existing OAM&P Infrastructure
With an in-band management VLAN channel, robust GUI and full SNMP connectivity, the ISG 140 and ISG 180 are easy to configure, manage and monitor. Performance monitoring is supported for both the T1/E1 and Ethernet interfaces. The EdgeAware™  suite offers comprehensive fault management through the use of equipment and facility alarms available over both the in-band management channel and through the local management console port.

The ISG 140 and ISG 180 complement the Overture Networks ISG product line, enabling service providers and carriers to create new business revenues by delivering high-margin Ethernet services to all of their customers, no matter where they are located on the network.

Technical Specifications

Interfaces (fixed) - ISG 140M and ISG 180M - MLPPP

• User
  • 1 x 10/100Base-T port
    
  • 1 x 100Base-FX (SM or MM SFP)
    
• WAN
  • 4x T1/E1 interfaces with MLPPP (ISG 140M)
  • 8 x T1/E1 interfaces with MLPPP (ISG 180M)
• Management
  • 1 x 10/100  port

• User
  • 2 x 10/100Base-T port
    
• WAN
  • 4x T1/E1 interfaces with PDH/VCAT (ISG 140V)
  • 8 x T1/E1 interfaces with PDH/VCAT (ISG 180V)
• Management
  • 1 x 10/100  port

Maintenance

• T1/E1 loopbacks and PM
• Ethernet loopbacks and PM
• Ethernet cable testing with TDR

WAN Protocol - ISG 140 and ISG 180

• RFC1661: Point-to-Point Protocol (PPP) and Link Control Protocol (LCP)
• RFC1990: PPP Multilink Protocol (ML-PPP)
• RFC3518: Bridging Control Protocol (BCP)
• Link Quality Monitoring/Reporting (LQM)

• G.7041 - Generic Framing Protocol (GFP)
• G.7042 - Virtual Concatenation (VCAT)
• G.7043 - Link Capacity Adjustment Scheme (LCAS)
• RFC3518: Bridging Control Protocol (BCP)

Ethernet Services

• 802.1p prioritization
• 802.1Q VLAN tagging/switching/stacking
• Rate limiting: 128-500 kb/s increments
• CoS: WRR or strict priority based on VLAN, p-bits or ToS/DSCP

Management

• EdgeAware intelligent management with L2+ Classification
• IP host with DHCP client for automatic address assignment
• In-band management VLAN
• Web-based management interface (GUI)
• SNMP agent supporting standard MIBs, including RMON
• FTP client for download

Power Options

• AC Power: 100-240 V auto ranging, 47-63Hz
• DC Power: Dual DC Feeds
  -48 VDC, nominal (-40 to -60VDC)
  or 24 VDC

Physical

• 1 RU (1.75" x 17" x 7.25")
• Wall-mount or rack-mount (19" and 23")
• Temperature hardened
  -40° to +65°C (operating)
  -40° to +70°C (storage)  

Regulatory

• UL Listed
• EN/UL 60950
• CE Mark
• FCC Part 15 Class B
• NEBS Level 3 certified 
• Full front access (ETSI form factor)

ISG 140 and ISG 180

Need a way to deliver managed Ethernet services over bundled T1 or E1 circuits? The award winning ISG 140 and ISG 180 provide the most cost-effective way to reach those remote offices.

NEW ISG 800

        Overture Networks announces the release of the exciting new ISG 800! Designed for cell tower deployments, this latest ISG offers true multiservice capabilities for pseudo-wires and Ethernet.