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Updated:March 10, 2009
Document ID:1518934720093550
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The Cisco® 4-Port Clear Channel T1/E1 High-Speed WAN Interface Card provides n x T1/E1 connectivity in a compact form factor and reduces deployment and management costs for the Cisco 2800, 3800, 2900 and 3900 Series Integrated Services Routers.
As more data and voice services are enabled in branch offices, the demand for WAN bandwidth increases accordingly. Multilink Point-to-Point Protocol (PPP) and Multilink Frame Relay enable customers to scale their leased lines from single T1/E1 to multiples of T1/E1, adding bandwidth as their needs increase. The Cisco 4-Port Clear Channel T1/E1 High-Speed WAN Interface Card (HWIC) integrates four T1/E1 ports in a singlewide HWIC to facilitate n x T1/E1 connectivity in a compact form factor (Figure 1).
With the Cisco 4-Port Clear Channel T1/E1 HWIC with integrated channel service unit and data service unit (CSU/DSU), you can consolidate customer premises equipment (CPE). The modules support balanced and unbalanced E1 connectivity and conform to G.703 and G.704 standards for unframed and framed E1 modes. The module supports both T1 and E1 modes, selectable by software configuration.
Features At-A-Glance
• 4 ports of RJ-48 connectors
• Cisco IOS® Software configurable for T1 or E1 operation
• Integrated CSU/DSU per port
• Balanced or unbalanced E1 termination in the same module
• E1 unframed and framed modes (G.703 and G.704)
• Independent clocking for each port
• Multilink PPP or Multilink Frame Relay (FRF.16) for T1/E1 ports on the same module and across different modules
Key Benefits
Reduced Footprint
If you are using multiple 1- or 2-port T1/E1 modules for n x T1/E1 connectivity, you can now replace the modules with a single Cisco 4-Port Clear Channel T1/E1 HWIC, and you can make the HWIC slots available for other interfaces and services. If you use a single T1/E1 today and plan to scale up to 4 T1/E1 modules in the future, you can install the 4-port HWIC today and turn on the additional T1/E1 ports as you need them.
Deployment Flexibility
The Cisco 4-Port Clear Channel T1/E1 HWIC is software-configurable between E1 or T1 operation, balanced or unbalanced E1 termination, and CSU/DSU. You no longer need to buy a specific module for T1 support and then another card for E1 connectivity. If you have branch offices across the world, ordering, inventory and management are much simplified.
Reliability
Integrating the external E1/T1 terminating device (CSU/DSU) increases the overall system reliability. Possible points of failure are reduced by eliminating the second power supply, additional fans, extra cabling, and other equipment that accompany a "two-box" solution. This increase in reliability allows service providers to more easily and cost-effectively meet the requirements of their customers' service-level agreements (SLAs) and offers enterprises maximum equipment uptime.
Product Numbers and Ordering Information
Table 1 lists the product numbers of the Cisco 4-Port Clear Channel T1/E1 HWIC and the cables for balanced and unbalanced E1.
Table 1. Product Numbers of Cisco 4-Port Clear Channel T1/E1 HWIC and E1 Converter Cables
Product Number
Description
HWIC-4T1/E1
4 Port Clear Channel T1/E1 High Speed WAN Interface Card
CAB-E1-RJ45BNC
E1 Cable RJ-45 to Dual BNC (Unbalanced)
Platform Support
Software and Memory Requirements
Refer to the software release notes or the Cisco IOS Software Upgrade Planner, or ask your local Cisco representative for information about software and memory requirements. Table 1 shows the minimum Cisco IOS Software requirements for each platform.
Table 2. Minimum Cisco IOS Software Requirements
Cisco 2821, 2851, and 3800 Series
Cisco 2911, 2921, 2951, and 3900 Series
Minimum IOS Release
12.4(20)T
15.0(1)M
Minimum IOS Technology Package
IP Base
IP Base
Supported Platforms and Number of Modules per Platform
Table 3 shows the platform support and the maximum number of Cisco 4-Port Clear Channel T1/E1 HWICs supported on each platform.
Table 3. Number of Cisco 4-Port Clear Channel T1/E1 HWICs Supported per Platform
Cisco Integrated Services Router Platform
Cisco 2821, 2851
Cisco 2911
Cisco 2921, 2951
Cisco 3825, 3845, 3925, 3945
Cisco 3925, 3925E, 3945, 3945E
Cisco 3925E, 3945E
Number of 4-port Clear Channel T1/E1 HWICs Supported
2
1
2
4
4
3
Software and Management Features
Table 4 shows the software and management features for the Cisco 4-Port Clear Channel T1/E1 HWIC.
Table 4. Software and Management Features of Cisco 4-Port Clear Channel T1/E1 HWIC
Feature
Description
Diagnostic Loopback Support
• E1 loopback modes
• Controller local loopback
• Interface local loopback
• T1 loopback modes
• Interface local loopback
• Interface remote loopback
• Controller local loopback
• Controller remote loopback
• CSU loopback modes for T1 CSU
• Data terminal equipment (DTE) loopback
• Network loopback
• Payload loopback
Alarm Detection
• Yellow alarm: Receive/send from/to network
• Blue alarm: Receive alarm indication signal (AIS) from network
• Red alarm: Loss of network signal
Relevant MIB Support
• RFC1406-MIB
• CISCO-ICSUDSU-MIB
Remote Management
• Supported by Cisco WAN Access Performance Management System (WAPMS)
• Cisco CNS 2100 Series Intelligence Engine (IE2100)
• CiscoWorks
Signaling Debugging
• ISDN Q.921 and Q.931 decode
• All other previously existing applicable Cisco IOS Software debugs
Hardware Specifications
Table 5 shows the hardware specifications for the Cisco 4-Port Clear Channel T1/E1 HWIC.
When installed in a Cisco 2800, 2900, or 3800 or 3900 Series Integrated Services Router, the Cisco 4-Port Clear Channel T1/E1 HWIC does not change the standards (safety, EMC, telecom, network homologation, power, environmental requirements, or regulatory approvals) of the router itself. Refer to the Cisco 2800 and 3800 Series data sheets for additional information about mechanical, environmental, and agency certifications.
Refer to the following URL or contact your local Cisco representative for country-specific approval status (Cisco.com login required)
http://www.ciscofax.com.
Cisco and Partner Services for the Branch
Services from Cisco and our certified partners can help you transform the branch experience and accelerate business innovation and growth in the Borderless Network. We have the depth and breadth of expertise to create a clear, replicable, optimized branch footprint across technologies. Planning and design services align technology with business goals and can increase the accuracy, speed, and efficiency of deployment. Technical services help improve operational efficiency, save money, and mitigate risk. Optimization services are designed to continuously improve performance and help your team succeed with new technologies. For more information, visit
http://www.cisco.com/go/services.
1For more information, visit the Cisco Compliance home page (listed later in this document in the section "Country Support") or consult your local Cisco representative for further details.
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