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SM-D-72FXS

by Cisco
Product Line: Cisco ISR 4000 Series Routers
Product Type: Network Module
Original price $0.00 - Original price $244.00
Original price
$244.00
$0.00 - $244.00
Current price $244.00
Title: Used

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Product Description

The SM-D-72FXS Cisco module features 72 Foreign Exchange Station (FXS) ports and supports Cisco IOS Software Release 15.2(4)M2 or later, providing a versatile solution for connecting analog devices. It offers advanced voice services with on-hook voltage of -44 V, off-hook loop current of 25 mA for short-loop-length ports and 35 mA for long-loop-length ports, and FXS loop length up to 3,000 ft for short-loop-length ports and up to 11,000 ft for long-loop-length ports, ensuring reliable communication over various distances. Compatibility with Cisco 3945, 3945e, 3925, 3925e, and 2951 platforms, along with RJ-21 and RJ-11 physical connectors, facilitates seamless integration into existing network infrastructures.

Key Feature for the SM-D-72FXS

  • What are the types of ports available on this device?
    The device offers 72 Foreign Exchange Station (FXS) ports, 3 of which can be configured as FXS-Extended Loop Length ports, 2 Foreign Exchange Office (FXO) Bypass Ports, and it includes 3 RJ-21 connectors.
  • Which Cisco IOS Software Release is required for optimal performance?
    Cisco IOS Software Release 15.2(4)M2 or later is required for optimal performance.
  • What is the maximum FXS loop length supported?
    The device supports an FXS loop length of up to 3000 ft for Short-Loop-Length Ports and up to 11,000 ft for Long-Loop-Length Ports.
  • What type of physical connectors does the device use?
    The device utilizes RJ-21 and RJ-11 physical connectors.
  • What are the ring voltage specifications?
    Ring voltage is 54 Vrms into 5REN at zero loop length for short-loop-length ports, and 62 Vrms into 2REN at zero loop length for long-loop-length ports.
  • How many DWSM slots are available and in which platforms?
    Slot 4 is available in Cisco 3945 and 3945e, while Slot 2 is available in Cisco 3925, 3925e, and 2951 platforms.
  • What signaling formats are supported for FXS?
    The device supports Loop-Start and Ground-Start signaling formats for FXS.
  • What is the maximum FXS loop resistance supported?
    The device supports up to 600 Ohms loop resistance for Short-Loop-Length Ports and up to 1400 Ohms for Long-Loop-Length Ports.
  • Which platforms are supported by this device?
    Supported platforms include Cisco 3945, Cisco 3945e, Cisco 3925, Cisco 3925e, and Cisco 2951.
  • How is the caller ID transmitted?
    Caller ID is transmitted on-hook using Frequency-Shift-Keying.

Product Review

The Cisco SM-D-72FXS module offers a high density of 72 FXS ports, providing an efficient solution for connecting analog devices to a VoIP network. Its support for both short and long-loop-length ports, with up to 11,000 ft for the latter, allows flexibility in deployment over varied distances. However, the module requires Cisco IOS Software Release 15.2(4)M2 or later and is only compatible with specific Cisco platforms, which may limit its application in diverse network environments.

Overview

The Cisco SM-D-72FXS module is designed to expand the capabilities of Cisco Integrated Services Routers, providing advanced voice and fax services. It features 72 Foreign Exchange Station (FXS) ports, which connect directly to standard telephones, fax machines, or similar devices. This module is ideal for large-scale deployments in business environments requiring a high density of voice connections. The module supports both short and long loop lengths, with the capacity to handle up to 3000 ft for short-loop-length ports and up to 11,000 ft for long-loop-length ports. This flexibility ensures compatibility with a variety of infrastructure layouts, including those in larger facilities. The hardware is equipped with three RJ-21 connectors, facilitating streamlined cabling and installation processes. Key specifications include: - The ability to configure ports as FXS-Extended Loop Length. - Two Foreign Exchange Office (FXO) bypass ports for failover connectivity. - Compatibility with Cisco IOS Software Release 15.2(4)M2 or later, ensuring up-to-date software support. Furthermore, the module provides on-hook voltage of -44 V and offers adjustable off-hook loop current settings of 25 mA for short-loop-length ports and 35 mA for long-loop-length ports. It supports ring frequencies of 20, 25, 30, and 50 Hz, with a sine wave ring waveform in the absence of DC offset. This ensures clear and reliable signaling for connected devices. For cabling, the module is compatible with both Category 3 and Category 5 cables, and it includes physical connectors for RJ-21 and RJ-11, accommodating a wide range of installation requirements. Its double-wide form factor ensures it fits securely in the designated slots within supported platforms, including Cisco 3945, 3945e, 3925, 3925e, and 2951 routers. The module adheres to strict immunity standards, including EN 55024, CISPR 24, EN50082-1, and EN 61000, safeguarding against electrical interference and ensuring consistent performance in diverse operating environments. Key features include: - Ringer Equivalence Number (REN) loading of 5REN per port for short-loop-length ports and 2REN per port for long-loop-length ports, providing flexibility in connecting multiple devices. - High ring voltage capacity, offering 54 Vrms into 5REN at zero loop length for short-loop-length ports, and 62 Vrms into 2REN at zero loop length for long-loop-length ports, ensuring effective signal transmission. - Support for both loop-start and ground-start signaling formats, enhancing compatibility with various telecommunication standards. Additionally, the module supports on-hook transmission of Frequency-Shift-Keying for Caller ID, allowing users to identify incoming calls. Ring tones are configurable to meet the requirements of different countries, ensuring global usability. With support for FXS loop resistance up to 600 Ohms for short-loop-length ports and up to 1400 Ohms for long-loop-length ports, the module is designed to maintain high-quality voice transmission even in challenging electrical environments. The Cisco SM-D-72FXS module is a comprehensive solution for expanding voice services in enterprise environments, offering a blend of high density, flexibility, and reliability.

Specifications

Part Number and ManufacturerCisco SM-D-72FXS
CapacityHigh
FXS Ports Total72
Adjustable PortsFXS with Extended Loop Capability: 3
Connector TypeRJ-21: 3 units
FXO Bypass Connections2
Required Cisco IOSVersion 15.2(4)M2 or higher
Voltage When On-Hook-44 Volts
Loop Current (Off-Hook)25 mA for Short, 35 mA for Long Loops
Ring Signal Frequency20, 25, 30, 50 Hz Options
Ring Signal ShapeSine Wave, No DC Bias
Short Loop ReachUp to 3000 feet
Long Loop ReachUp to 11,000 feet
Compatible CablingCategory 3, Category 5
Connector OptionsRJ-21, RJ-11
Module SizeDouble-width
Electromagnetic CompatibilityEN 55024, CISPR 24, EN50082-1, EN 61000
Compatible Cisco PlatformsCisco 3945, 3945e, 3925, 3925e, 2951
Ringer Load Capacity5REN: Short, 2REN: Long Loops
Ring Voltage Capability54 Vrms at 5REN (Short), 62 Vrms at 2REN (Long) at zero loop
Supported Signal TypesLoop-Start, Ground-Start
Module Slot CompatibilitySlot 4 for 3945/3945e, Slot 2 for 3925/3925e/2951
Caller IdentificationFrequency-Shift-Keying On-Hook
Customizable Ring TonesYes, per country regulations
Loop Resistance LimitsUp to 600 Ohms (Short), Up to 1400 Ohms (Long)

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