The Cisco® IAD2435-8FXS Integrated Access Device is part of the Cisco IAD2400 Series of smart Integrated Access Devices. These devices offer best-in-class customer premises equipment (CPE) to service providers delivering managed, integrated voice and data services to small and medium-sized businesses (SMB).
The Cisco IAD2435-8FXS (Figure 1) is a secure, cost-effective device that can help accelerate migration from traditional time-division multiplexing (TDM) voice to voice over IP (VoIP) by supporting quality of service (QoS) and IP service-level agreements (IP SLAs). A quiet, space-saving desktop form factor makes it ideal for small business deployments.
Powered by Cisco IOS® Software, the Cisco IAD2435-8FXS supports both analog voice and VoIP, with multiple call-control protocols, including Session Initiation Protocol (SIP), Media Gateway Control Protocol (MGCP), and H.323, along with diverse VoIP codecs. In addition to industry-leading voice features, the Cisco IAD2435-8FXS uses the features of Cisco IOS Software to provide IP routing, an on-board encryption engine, Dynamic Host Configuration Protocol (DHCP), Network Address Translation (NAT), and advanced security features.
The Cisco IAD2435-8FXS is a fixed-configuration platform; Table 1 lists the standard features of the device.
Table 1. Standard Features of the Cisco IAD2435-8FXS Integrated Access Device
Fast Ethernet Ports
Two 10/100 Mbps
The model also comes with one console/auxiliary port for troubleshooting and an external 60W power supply.
Primary Features and Benefits to Service Providers
Cisco IOS Software enables the Cisco IAD2435-8FXS to deliver the same rich IP feature set that powers more than 80 percent of the Internet infrastructure. These proven voice and data features allow service providers to effectively deploy profitable, value-added services to small and medium-sized businesses. Auto-installation technology in the Cisco Configuration Express tool makes true plug-and-play installation possible at the service provider's customer site.
Transparent Service Migration
The Cisco IAD2435-8FXS enables service providers to migrate end customers transparently from TDM-based GR.303 voice services to call agent-based packet voice services without the need for a truck roll to the customer site. The provider can choose between H.323, MGCP, and SIP for VoIP protocols, based on the services that will be delivered to the customer.
The Cisco IAD2435-8FXS offers both analog and packet voice support, with rich support for VoIP signaling protocols. Combined with the option for call agent and softswitch-based network designs, the Cisco IAD2435-8FXS offers unrivaled flexibility for the design of next-generation multiservice networks.
The Cisco IAD2435-8FXS increases operational efficiencies by reducing or eliminating complete hardware upgrades, warehousing, truck rolls, and involvement by highly skilled technicians. When deployed with other Cisco equipment and Cisco IOS Software, service providers can cost-effectively extend training, administration, and maintenance activities across the entire network.
Compatibility with a wide range of industry-leading softswitches and voice gateways, combined with the world-class data features of Cisco IOS Software, enables service providers to deploy a highly efficient, highly scalable end-to-end multiservice network. The Cisco IAD2435-8FXS is an integral part of Cisco packet voice solutions.
Primary Benefits to End Users
Robust Voice Quality
Cisco experience in delivering products that provide toll-quality packet-voice services helps ensure that the Cisco IAD2435-8FXS provides the clear, robust voice quality end users have come to expect from telephony services.
Cisco products are renowned for their exceptional reliability, earned through years of proven industry service. The Cisco IAD2435-8FXS extends the same standards to managed service environments to provide end users with the high levels of reliability and availability.
Today's rapidly changing business environment leads to constant change in the network requirements of small and medium-sized businesses. The Cisco IAD2435-8FXS simplifies such changes by allowing service providers to add or remove service offerings remotely based on end-user needs.
The Cisco IAD2435-8FXS is designed primarily for managed service offerings from service providers. Its feature flexibility provides an advantage to service providers, as they can standardize on one model of CPE that can be deployed in various architectures:
• Integrated data and voice access offering (Figure 2)
Figure 3. Managed SIP Trunking for IP/PBX Interconnections
Figure 4. Hosted VoIP Offering
Features and Benefits
The Cisco IAD2435-8FXS architecture has been designed specifically to meet the expanding requirements of service providers delivering managed services to commercial offices and SMBs for current and future applications. The Cisco IAD2435-8FXS provides T1/E1 connectivity options combined with leading-edge availability and reliability features. In addition, Cisco IOS Software provides support for a complete suite of transport protocols, QoS tools, advanced security, and voice applications for managed deployments. Table 2 lists the features and benefits of the Cisco IAD2435-8FXS.
Table 2. Features and Benefits
The IAD2435-8FXS is a desktop unit with front LEDs and I/O ports at the back. As it does not require cooling fans, it operates quietly in office environments.
Embedded security hardware acceleration
Standard embedded hardware cryptography accelerators; optional Cisco IOS Software upgrade to help enable WAN link security and VPN services.
Integrated Dual-Port Fast Ethernet
Two 10/100 Fast Ethernet ports
Support for Cisco IOS Software
Full support for the latest Cisco IOS Software-based QoS, bandwidth management, and security features.
Onboard VPN encryption acceleration
IPSec Digital Encryption Standard (DES), Triple DES (3DES), Advanced Encryption Standard (AES) 128, AES 192, and AES 256 cryptology.
1 RJ-21 connector providing 8 FXS analog voice ports for connecting analog phones, fax machines, and modems.
Support for industry-standard VoIP protocols including SIP, MGCP, and H.323; interoperability with majority of softswitch vendors
Fixed digital signal processors (DSPs) on motherboard
DSP modules deliver support for analog voice, transcoding, and secure Real-Time Transport Protocol (RTP) applications.
Note: Cisco Unified Communications Manager and Cisco Unified Communications Manager Express are not supported on the Cisco IAD2435-8FXS.
Summary and Conclusion
As companies strive to lower the cost of running their network and increase the productivity of their end users, more intelligent solutions are required. The Cisco IAD2435-8FXS is designed to consolidate the functions of many separate devices into a single, compact package, enabling service providers to simply and effectively deploy managed services to small and medium-sized businesses. The Cisco IAD2435-8FXS Integrated Access Device delivers a flexible, adaptable infrastructure to meet customer requirements today and tomorrow.
Table 3 lists the hardware specifications for the Cisco IAD2435-8FXS.
Table 3. Hardware Specifications
• Default: 256 MB
• Maximum: 256 MB
• Default: 128 MB
• Maximum: 128 MB
Onboard LAN ports
Two 10/100 Mbps
Integrated hardware-based encryption
VPN hardware acceleration (on motherboard)
DES, 3DES, AES 128, AES 192, and AES 256
Console/Aux port (up to 115.2 kbps)
Minimum Cisco IOS Software release
Yes, using Cisco brackets
AC input voltage
100 to 240V AC, autoranging
AC input frequency
AC input current
2A (110V) 1A (230V)
AC input surge current
50A maximum, one cycle (-48V power included)
60W (205 BTU/hr)
32° to 104°F (0° to 40°C)
4° to 149°F (-20° to 65°C)
Maximum operating temperature at altitude
• 40°C at sea level
• 31°C at 6000 ft (1800 m)
• 25°C at 10,000 ft (3000 m)
Note: Derate 1.5°C per 1000 ft
10% to 85% noncondensing
(H x W x D)
1.72 x 10.31 x 8.13 in.
43.7 x 262 x 207 mm
1 rack unit (1RU)
Weight (fully configured)
Noise level (min/max)
• No fan
• 0 dBA
• UL 60950
• C22.2 No. 60950
• IEC 60950
• EN 60950-1
• AS/NZS 60950
• EN 300386
• EN 55024/CISPR 24
• EN 50082-1
• EN 61000-6-1
Electromagnetic compatibility (EMC)
• FCC Part 15 Class A
• ICES-003 Class A
• EN 55022 Class A
• CISPR 22 Class A
• VCCI Class A
• EN 300386 Class A
• EN 61000-3-3
• EN 61000-3-2
• The IAD2435-8FXS platform complies with FCC Part 68, CS-03, JATE Technical Conditions, European Directive 99/5/EC, and TBR 4, 12, and 13 and other standards.
Table 4 lists the specifications for the FXS voice port on the Cisco IAD2435-8FXS.
Table 4. FXS Voice Port Specifications
Power denial (calling-party control, far-end disconnect)
On-hook transmission of frequency-shift-keying data
FXS loop resistance
Up to 600 ohms (including phone or terminal equipment)
Off-hook loop current
25 mA (max)
Configurable for different country requirements
67V into 1 Ringer Equivalence Number (REN) at zero loop length (balanced)
20 Hz, 25 Hz, 30 Hz, and 50 Hz
5 REN/port, 12 REN/system (max)
Address signaling formats
In-band dual tone multifrequency (DTMF) or pulse dialing (8-12pps)
FXS signaling formats
Loop-start and ground-start
The Cisco IAD2435-8FXS was orderable in late October 2008, with first customer shipments in mid-November 2008.
To place an order, visit the Cisco Ordering Home Page Cisco Ordering Home Page. Table 5 provides ordering information for the Cisco IAD2435-8FXS, Table 6 gives software ordering information, and Table 7 gives licensing information.
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For More Information
For more information about the Cisco IAD2435-8FXS, visit http://www.cisco.com/go/iad or contact your local Cisco account representative.