Features of Cisco SM-X Double-Wide Service Module

Cisco SM-X double-wide service module has 72 FXS port network voice module.

The features of the SM-X-72FXS are as follows:

■Number of FXS Ports—72 (Port 0 to Port 71)

■Number of Ports Configurable as FXS-E—16 for 72FXS mode and 56 for 56FXS-E mode

■Max RENs/Port—5 REN/FXS Port and 2 REN/FXS-E Port

■Total REN: 72FXS—40 and 56FXS-E—30

■RJ-21 Connectors—3

The following table provides information about Cisco SM-X double-wide service module SKU:

The slot, bay, and port information for Cisco SM-X double-wide FXS service module is as follows:

Platform and Software Requirements

Cisco SM-X double-wide service module is supported on Cisco 4000 Series Integrated Services Routers effective with Cisco IOS XE Release 16.7.1 and later.

Features and Benefits

The new generation of Cisco High-Density Analog Voice and Fax Service Modules improves upon the previous high-density analog and digital extension modules (EVMs). These improvements are as follows:

■ On-board Digital Signal Processor (DSP)— The FXS service module contains an onboard DSP and don’t require the router to have a dedicated packet voice DSP module (PVDM) on the motherboard. The DSP on the voice module is necessary for the voice features. It also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions.

■ Support for Online Insertion and Removal (OIR)— The FXS service module supports Online Insertion and Removal (OIR), reducing the downtime required for new or replacement modules. The service modules can be inserted into the SM-X slot on Cisco 4000 Series Integrated Services Routers without powering off the router.

■ FXS-E (extended loops) support— FXS ports on the new modules support FXS-E with the following details:

–Higher loop current (35 mA) to accommodate specialty phones

–Longer loop length for loops with 26 AWG wire, up to 11,000 feet (3400 meters)

–Higher ringing voltage (65 Vrms, no load)

Note: Switching between the modes requires reload of the ISR chassis.

In addition to the above features, the service modules supports the following features:

■Caller line ID

■G.711, G.729a, and G.726

■G722, iLBC, GSMAMR-NB, and Internet Speech Audio Codec (iSAC)

■Fax detection, pass-through, and relay (T.38)

■Modem pass-through

■DTMF detection

■Echo cancellation

■Voice activity detection

■Comfort noise generation

■Real-Time Control Protocol (RTCP)

■Acoustic shock protection

■Real-Time Transport Protocol (RTP)

■RFC 4733 Digit Relay

■Noise reduction is on the roadmap

The FXS features include:

■Support for either FXS or DID functionality

■Message-Waiting Indicator (MWI)

■Cable detection: GR909 line test

Analog Phone Connectivity

Cisco High-Density Analog Voice and Fax Service Modules are ideal for analog phone deployments ranging from centralized to sparsely concentrated or distributed topologies. Cisco 4000 Series Integrated Services Routers offer many supplementary analog calling features, depending on the call control and signaling type used. All supplementary analog features are supported through the FXS service module. The analog interface on Cisco 4000 Series also supports Feature Access Codes (FACs) for invoking supplementary services.

Fax and Modem Connectivity

FXS ports on the Cisco High-Density Analog Voice and Fax Service Modules support fax machines and modems. When using fax machines, the gateways support T.38 fax relay and fax pass-through. T.38 fax relay technologies allow transfer of faxes across the network with high reliability using less bandwidth than a voice call. All modems can be connected to the Cisco VG Series Gateways and are transferred over the network using modem pass-through.

Protocols Supported

The voice gateways support the following protocols:

■SCCP

■H.323v4

■MGCP

■SIP

■Real-Time Transport Protocol (RTP)

■Secure Real-Time Transport Protocol (SRTP)

■Trivial File Transfer Protocol (TFTP)

■HTTP server

■Simple Network Management Protocol (SNMP)

■Telnet

■Dynamic Host Configuration Protocol (DHCP)

■DNS

■Cisco Unified Communications Manager or Cisco Unified Communications Manager Express redundancy support using Hot Standby Router Protocol (HSRP)

■Call survivability: MGCP failover to an H.323 connection to the Survivable Remote Site Telephony (SRST) router

■T.38 fax relay and modem pass-through

■Codec support: G.711, and G.729a

■RADIUS and TACACS+ for Telnet and authorization

The following table lists the feature specifications for Cisco SM-X single-wide service module.

Cisco SM-X-72-FXS Service Module Specifications

Physical Description and LEDs

All interface ports and LEDs are on the rear of the chassis.The following figure illustrates their locations.

Figure 1 Cisco SM-D-72 FXS Service Module LEDs

Technical and Compliance Specifications

The following table details the technical specifications of Cisco SM-X double-wide service modules.

The following table details the compliance specifications of Cisco SM-X double-wide service modules.

Platform and Software Requirements

Cisco High-Density Analog Voice and Fax Service Modules are supported on Cisco 4000 Series Integrated Services Routers effective with Cisco IOS XE Fuji 16.7.1 or later. The service modules provide gateway services for Cisco Unified Communications using Cisco Unified Communications Manager with SRST or Cisco Unified Communications Manager Express. The following table provides information about the software version that is compatible with FXS service module.

Table 6 Compatible Software Versions with FXS Service Module

Port Numbering Conventions

The voice port numbering conventions for Cisco SM-X double-wide service module begins at 1/0/0 to 1/0/71 for 72FXS mode and 1/0/0 to 1/0/55 for 56FXS-E mode.

Configuration Methods

After Cisco SM-X double-wide service module is operating and able to communicate, use the procedures in Cisco SM-X single-wide service module Software Configuration Guide to configure the specific services and functions or to make changes to the existing configuration.

There are multiple methods for configuring Cisco SM-X double-wide service module:

■System configuration dialog

■Configuration mode—Cisco IOS software CLI

■setup command facility—Remote configuration through a LAN

■SNMP-based application—CiscoView or HP OpenView

■HTTP-based configuration server—Provides access to the CLI from a web browser

Safety Precautions

This section contains the following warning statements. A warning means danger. You are in a situation that could cause bodily injury. Before working on an equipment, be aware of the hazards involved with electrical circuitry and standard safety practices to prevent accidents.

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.

SAVE THESE INSTRUCTIONS

Warning: Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001

Warning: To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021

Warning: Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the unit first. Statement 1026

Warning: This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do not touch the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11 port, or the associated circuit-board when the ringer is active. The ringer is activated by an incoming call. Statement 1042

Warning: For connections outside the building where the equipment is installed, the following ports must be connected through an approved network termination unit with integral circuit protection.
FXS Statement 1044

Prerequisites

■Obtain two-wire line service from your service provider or from a PBX.

■Complete your company’s dial plan.

■Establish a working telephony network based on your company’s dial plan.

■Establish a working connection to the network.

■Install appropriate voice interface hardware on the router

■Gather the following information about the telephony connection of the voice port:

–Telephony signaling interface: FXS

–Locale code (usually the country) for call progress tones

■If you are connecting a voice-port interface to a PBX, it is important to understand the PBX’s wiring scheme and timing parameters. You can gather this information from your PBX vendor or the reference manuals that accompany your PBX.

Configuring an FXS Interface

Perform this task to configure the Single-wide High Density Analog Voice Service Module as an FXS interface.

Examples

The following example shows a partial running configuration of an FXS interface.

The following is a sample output from the show voice port summary command.

Converting Cisco SM-X-72FXS Service Module to Support 56 Long Loop FXS

Perform this task to convert Cisco SM-X-72FXS service module to support 56 long loop FXS and DID ports.

Examples

The following is a sample example where 56 voice ports are created for the service module after the sm-type 56FXS-E command is executed.

Related Documents

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