Cisco VIC-2FXS Manuel utilisateur

Understanding FXS Voice

Interface Cards

Contents

Introduction

Prerequisites

Requirements

Components Used

Conventions

Product Numbers

Features

Configuration

Platform Support

Pinout Information

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Introduction

A Foreign Exchange Station (FXS) interface connects directly to a standard

telephone, fax machine, or similar device and supplies ring, voltage, and

dial tone. The Cisco FXS interface is an RJ-11 connector that allows

connections to basic telephone service equipment, keysets, and private

branch exchanges (PBXes).

For more information and troubleshooting, refer to the TAC Case Collection ( registered customers only)

tool.

Prerequisites

Requirements

There are no specific requirements for this document.

Com

onents Used

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This document is not restricted to specific software and hardware versions.

The information presented in this document was created from devices in a specific lab environment.

All of the devices used in this document started with a cleared (default) configuration. If your

network is live, make sure that you understand the potential impact of any command before you use

it.

Conventions

For more information on document conventions, refer to the Cisco Technical Tips Conventions.

Product Numbers

Foreign eXchange Station = FXS

Direct Inward Dial = DID

Voice Interface Card = VIC

Note: VIC2 indicates a new generation.

Features

Interface

Card Description

VIC-2FXS Two port FXS VIC

VIC2-2FXS Two port FXS VIC

VIC-2DID Two port DID/FXS Dual Function VIC.

DID mode is default operating mode.

VIC-

4FXS/DID Four port FXS/DID Dual Function VIC.

FXS mode is default operating mode.

Feature Description

Voice Ports Two or Four FXS ports

Connections

Connects to a telephone or fax, or to a

PBX or key set that emulates a telephone.

Uses RJ-11 connectors.

Note: The end-to-end connection between

the CO RJ11 jack and the router voice-port

must be a straight-through connection.

This means that TIP goes to TIP and RING

to RING. Normally the CO provides an

interface for which a standard rolled RJ11

cable can be used since the connection that

results is straight. However, sometimes the

CO cannot reverse the pinouts and

therefore, a straight RJ11 cable is needed.

Configuration

For configuration of Voice features in Cisco IOS Software, refer to Voice over IP for the Cisco 3600

Series.

Note: In Cisco IOS Software, issue the voice-port <slot>/<VIC slot>/<unit> global configuration

command to configure the voice port parameters.

The commands to configure Voice over IP (VoIP) on Cisco routers are very similar on all of the

router platforms shown here.

For configuration of voice features in Catalyst OS (CatOS) on a Catalyst 4000, refer to Configuring

Voice Interfaces.

Platform Support

Note: The table that follows has been split due to spatial concerns.

Defintions:

zPinouts for Rolled RJ11 Cable =>

TIP to RING, RING to TIP

zPinouts for Straight RJ11 Cable=>

TIP to TIP, RING to RING

Note: FXS ground-start services are

polarity-sensitive and undesirable

behavior, such as failed calls, can occur if

proper polarity conventions are not

observed.

Cisco IOS®

Software

Feature Set

Requires a "Plus" or “IPVOICE” feature

set.

Cisco IOS

Software

Support 11750217512,

17602VG200 2600,

3620 2600XM

Carrier

Module Not

Required Not

Required NM-1V

NM-2V NM-1V

NM-2V

NM-HD-

1V, NM-

HD-2V,

NM-HD-

2VE

NM-

HDV2

VIC-2FXS All

versions All

Versions 12.1(3)T,

12.1(3)T All

Versions All

Versions Not

Supported Not

Supported

VIC2-

2FXS Not

Supported

12.2(15)

ZL, 12.3

(4)T,

12.3(4)

Not

Supported Not

Supported

12.2(15)

ZJ, 12.3

(4)T 12.3(7)T

XG,

12.3(5)

VIC-2DID4Not

Supported

12.2(2)

X*, 12.2

(4)X*,

12.2(4)

Y*, 12.2

(8)Y*,

12.2(11)

Y*, 12.2

(13)T,

12.2(13)

Z*, 12.2

(15)Z*

12.1(5)

XM1,

12.2(2)T,

12.2(2)

XT, 12.3

(1)

12.1(5)

XM1,

12.2(2)T,

12.2(2)

XT, 12.2

(11)YT,

12.3(1)

All

Versions

12.2(15)

ZJ, 12.3

(4)T 12.3(7)T

VIC-

4FXS/DID5Not

Supported

12.2(15)

ZL, 12.2

(8)YN,

12.3(2)

T, 12.3

(4)XG,

12.3(5)

Not

Supported Not

Supported

12.2(15)

ZJ, 12.3

(4)T 12.3(7)T

Cisco IOS

Software

Support 136403366032691, 3700 IAD

IAD

Carrier

Module NM-1V

NM-2V

NM-HD-

1V, NM-

HD-2V,

NM-HD-

2VE

NM-1V

NM-2V

NM-HD-

1V, NM-

HD-2V,

NM-HD-

2VE

NM-1V

NM-2V

NM-HD-

1V, NM-

HD-2V,

NM-HD-

2VE

NM-

HDV2 Not

Req

VIC-2FXS 11.3(1)T,

all 12.x Not

Supported All

Versions Not

Supported All

Versions Not

Supported Not

Sup

VIC2-

2FXS Not

Supported

12.2(15)

ZJ, 12.3

(4)T

Not

Supported

12.2(15)

ZJ, 12.3

(4)T

Not

Supported

12.2(15)

ZJ, 12.3

(4)T 12.3(7)T 12.3

(

XD,

(7)T

VIC-2DID4

12.1(5)

XM1,

12.2(2)T,

12.2(2)

XT, 12.2

(11)YT,

12.3(1),

12.3(2)T

12.2(15)

ZJ, 12.3

(4)T

12.1(5)

XM1,

12.2(2)T,

12.2(2)

XT, 12.2

(11)YT,

12.3(1),

12.3(2)T

12.2(15)

ZJ, 12.3

(4)T

All

Versions

12.2(15)

ZJ, 12.3

(4)T 12.3(7)T Not

Sup

1Voice requires a Cisco IOS Software Voice feature set on Cisco 1700 series routers, and a Cisco

IOS Software Plus feature set on the Cisco 2600, 3600, and 3700 series routers.

2On the Cisco 1700 voice platforms, one or more packet voice and data modules (PVDMs) are

needed to support Voice interface card (VICs,) or voice ports may be missing in the active

configuration. The PVDMs hold digital signal processors (DSPs) that make the VICs fully

functional, and are installed on the motherboard of the Cisco 1700 series. For more information,

refer to Troubleshooting Unrecognized Voice Interface Cards on Cisco 1750, 1751, and 1760

Routers. On the Cisco VG200, 2600, 2600XM, 2691, 3600, and 3700 series routers, the carrier

network modules (NM-1V, NM-2V, NM-HD-1V, NM-HD-2V, NM-HD-2VE, NM-HDV2) come

with the DSPs installed on the module.

3Voice is not supported on Cisco 3631 series router.

4The VIC-2DID card can operate in both DID (default setting) and FXS modes on the Cisco 1751

and 1760, and when installed in the NM-1V and NM-2V on other voice platforms. When installed in

a NM-HD-1V, NM-HD-2V, NM-HD-2VE, and NM-HDV2, the VIC-2DID card only operates in

DID mode until the IOS 12.4(3) release when both DID and FXS modes are supported.

5The VIC-4FXS/DID card can operate in both FXS (default setting) and DID modes on the Cisco

1751 and 1760. On other voice platforms the VIC-4FXS/DID card only operates in FXS mode when

installed in a NM-HD-1V, NM-HD-2V, NM-HD-2VE, and NM-HDV2 until the IOS 12.3(14)T

release where both modes of operation are available.

1Voice requires a minimum of a Cisco IOS Software IPVOICE feature set on the Cisco Integrated

Services Router

(

ISR

)

latforms.

VIC-

4FXS/DID5Not

Supported

12.2(15)

ZJ, 12.3

(4)T

Not

Supported

12.2(15)

ZJ, 12.3

(4)T

Not

Supported

12.2(15)

ZJ, 12.3

(4)T 12.3(7)T 12.3

(

XD,

(7)T

Cisco IOS

Software

Support1280122811, 2821, 285123825, 3845

Carrier

Module Not

Required Chassis

Slot NM-1V

NM-2V

NM-HD-

1V, NM-

HD-2V,

NM-HD-

2VE

NM-

HDV2 Chassis

Slot NM-1V

NM-2V

NM-

1V,

HD-

NM-

2VE

VIC-2FXS Not

Supported Not

Sup

VIC2-

2FXS 12.3(8)T4 12.3(8)T4 Not

Supported 12.3(8)T4 12.3(8)T4 12.3(11)T Not

Supported 12.3

(

VIC-2DID312.3(8)T4 12.3(8)T4 Not

Supported 12.3(8)T4 12.3(8)T4 12.3(11)T Not

Supported 12.3

(

VIC-

4FXS/DID412.3(8)T4 12.3(8)T4 Not

Supported 12.3(8)T4 12.3(8)T4 12.3(11)T Not

Supported 12.3

(

2On the Cisco 2801, 2811, 2821, 2851, 3825, and 3845 voice platforms, one or more PVDM2 DSP

cards are needed to support VIC and VWICs if they are installed on the chasis WIC slots, or voice

orts may be missing in the running configuration. The PVDM2 DSP cards hold DSPs that make the

VICs fully functional, and are installed on the motherboard of these ISR platforms. If VICs and

VWICs are installed in a Network Module, the Module itself must have some DSPs.

3The VIC-2DID card can operate in both DID (default setting) and FXS modes on the Cisco 2801.

DID mode is supported from IOS 12.3(8)T4 onwards, while FXS mode is supported in IOS 12.3(11)

T onwards. On other ISR platforms, the VIC-2DID card only operates in DID mode until the IOS

12.4(3) release where both DID and FXS modes are supported.

4The VIC-4FXS/DID card can operate in both FXS (default setting) and DID modes on the Cisco

2801. On other ISR platforms, the VIC-4FXS/DID card only operates in FXS mode until the IOS

12.3(14)T release where both modes of operation are available for the VIC-4FXS/DID card on the

Cisco 2811, 2821, 2851, 3825, and 3845 ISR platforms.

Pinout Information

Port zero on the VIC-2FXS card is designed to accommodate a United States style two-line phone,

instead of the usual European style one-line phone.

This means that in addition to pins three and four in use, pins two and five are also monitored. In

some handsets it is possible that pins two and five are wired up to allow last-number recall or call-

forwarding. If this is the case, port zero on the VIC assumes you have a two-line phone, and port 1 is

shutdown.

In order to check this, use only two wires in the cable from the VIC to the phone and verify that port

1 becomes active again.

zPin 1—No Connection

zPin 2—line two tip

zPin 3—line—one ring

zPin 4—line—one tip

zPin 5—line—two ring

zPin 6—line—No Connection

Note: The Cisco IOS Software versions provided are typically the minimum version required to

support the platform, module, or feature in question. In order to find a complete list of Cisco IOS

Software versions a feature, module, interface card, or chassis is supported in, use the Software

Advisor ( registered customers only) tool.

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