VWIC 1MFT T1, VWIC 2MFT T1,

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Using VWIC−1MFT−T1, VWIC−2MFT−T1, and

VWIC−2MFT−T1−DI Interface Cards for Data on

Cisco 1700, 2600, 3600 and 3700 Platforms

Introduction

This document provides an overview of the VWIC−1MFT−T1, VWIC−2MFT−T1, and

VWIC−2MFT−T1−DI family of interface cards and provides sample configurations for using this card for data on Cisco 1700, 2600, 3600, and 3700 router platforms.

Note: The sample configurations are applicable for data (but not necessarily voice) scenarios.

Product Numbers

Product Description

VWIC−1MFT−T1 1−Port RJ−48 Multiflex Trunk − T1 VWIC−2MFT−T1 2−Port RJ−48 Multiflex Trunk − T1

VWIC−2MFT−T1−DI 2−Port RJ−48 Multiflex Trunk − T1 With Drop and Insert

Features

The Multi−Flex Trunk (MFT) provides physical layer T1 access. The capabilities of this T1 interface are determined by the host it is plugged into.

High Density Voice − When you use the Multi−Flex Trunk in a high density voice network module, each DS0 can contain voice calls. The voice network module, not the Multi−Flex Trunk, determines the T1 signaling capability (T1 CAS, ISDN PRI).

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2600 WIC Slot − When you use the Multi−Flex Trunk in the WAN interface card (WIC) slot of the Cisco 2600 routers, you can configure each T1 into a single channel group as a serial interface. You can have at most two channel groups per VWIC.

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3700 WIC Slot – When you use the Multi−Flex Trunk in the WIC slot of the Cisco 3700 routers, you can configure each T1 into a single channel group as a serial interface. You can have at most two channel groups per VWIC.

NM−1E2W, NM−1E1R2W, and NM−2E2W − The 3600 NM−1E2W, NM−1E1R2W, and NM−2E2W support one serial channel group per WIC slot, thus the VWIC−2MFT−T1 is not supported. The VWIC−2MFT−T1−DI is supported, but with one serial channel group.

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NM−1FE2W, NM−1FE1R2W, NM−2FE2W, and NM−2W − The NM−1FE2W, NM−1FE1R2W, NM−2FE2W and NM−2W support at most two serial channel groups per WIC slot.

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Two channel groups on one port − This requires Cisco IOS® Software Release 12.1(1)T or later on Cisco 2600 routers. This requires Cisco IOS Software Release 12.1(2)X, 12.1(3)T or later releases on Cisco 3620, 3640, and 3660 routers. On the Cisco 3700 routers Cisco IOS Software Release 12.2(8)T or later releases is required.

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Two channel groups on one port are supported in Cisco 2600 and Cisco 3700 chassis WIC slots. This is not supported on NM−1E2W, NM−2E2W or NM−1E1R2W but is supported on NM−1FE2W, NM−2FE2W, NM−1FE1R2W and NM−2W. The WIC slot still supports a maximum of two serial channel groups. When the two channel group mode is enabled only one physical port is supported by the WIC slot. Add and drop multiplexing is still supported in this mode since only one port terminates on the router.

Other Features

The drop and insert feature on the VWIC−2MFT−T1−DI interface card allows you to take DS0 timeslots off one T1 interface and insert them into time slots of the other T1 interface. This feature is available in Voice interface card (VIC) and WIC applications. Future applications may include T1 ATM and T1 ATM CES interfaces. Bit error rate testing (BERT) support requires Cisco IOS Software Release 12.1(1)T or later. V.54 loopback requires Cisco IOS Software Release 12.1(1)T or later.

Supported Platforms

IOS Support VWIC−1MFT−T1 VWIC−2MFT−T1 VWIC−2MFT−T1−DI

1600 not supported not supported not supported

1700 12.2(4)YB 3_, 12.2(8)YJ 12.2(4)YB3, 12.2(8)YJ 12.2(4)YB 3_{, 12.2(8)YJ} 2600 Chassis WIC Slot 12.0(5)XK, 12.0(7)T, 12.1, 12.1T, 12.2, 12.2T 12.0(5)XK, 12.1, 12.1T, 12.2, 12.2T 12.0(5)XK, 12.1, 12.1T, 12.2, 12.2T NM−2W 12.0(7)XK, 12.1(1)T, 12.2, 12.2T 12.0(7)XK, 12.1(1)T, 12.2, 12.2T 12.0(7)XK, 12.1(1)T, 12.2, 12.2T High Density Voice NM 12.0(5)XK, 12.1, 12.1T, 12.2, 12.2T 12.0(5)XK, 12.1, 12.1T, 12.2, 12.2T 12.0(5)XK, 12.1, 12.1T, 12.2, 12.2T 2600XM Chassis WIC

Slot all IOS versions all IOS versions all IOS versions NM−2W 12.2(13),

12.2(8)T1

12.2(13),

12.2(8)T1 12.2(13), 12.2(8)T1 High Density

Voice NM all IOS versions all IOS versions all IOS versions

3620, 3640, 3660 NM−1E2W, NM−1E1R−2W, NM−2E2W 12.0(5)XK2, 12.0(7)T, 12.1, 12.1T, 12.2, 12.2T not supported 12.0(5)XK 1_,2_, 12.0(7)T, 12.1, 12.1T, 12.2, 12.2T NM−1FE2W, NM−1FE1R2W, NM−2FE2W, NM−2W 12.0(7)XK, 12.1(1)T, 12.2, 12.2T 12.0(7)XK, 12.1(1)T, 12.2, 12.2T 12.0(7)XK, 12.1(1)T, 12.2, 12.2T High Density Voice NM 12.0(5)XK, 12.0(7)T, 12.1, 12.1T, 12.2, 12.2T 12.0(5)XK, 12.0(7)T, 12.1, 12.1T, 12.2, 12.2T 12.0(5)XK, 12.0(7)T, 12.1, 12.1T, 12.2, 12.2T 3631 Chassis WIC

Slot all IOS versions all IOS versions all IOS versions all IOS versions all IOS versions all IOS versions

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2691, 3725, 3745 Chassis WIC Slot NM−1FE2W, NM−1FE1R2W, NM−2FE2W, NM−2W

all IOS versions all IOS versions all IOS versions

High Density Voice NM

all IOS versions all IOS versions all IOS versions

1_{Only one serial channel group is supported.}

2_{Not supported in NM−1E1R2W, NM−1E2W, NM−2E2W on the Cisco 3660 in any Cisco IOS software}

version.

3_{Only for voice applications (v3 image) or voice and data (v8 image) in 1751, 1760. For data use in}

1721/1751/1760, use 12.2(8)YJ.

Sample Configuration

The sample configuration below is for a VWIC−2MFT−T1 card where the first T1 controller (T1 0/0) has timeslots 1−20 (1280k) configured for serial data, and timeslots 21−24 (256k) configured for serial data on the second T1 controller (T1 0/1).

Note: Once you configure the channel−group 0 timeslot command, a serial interface is created. Configuration

!−− Below is the configuration for the first T1 controller

controller T1 0/0 framing esf

clock source internal linecode b8zs

channel−group 0 timeslots 1−20 speed 64

!−− Below is the configuration for the second T1 controller

channel−group 0 timeslots 21−24 speed 64

!−− This serial interface was created from T1 controller 0/0

interface Serial0/0:0

ip address 10.1.1.1 255.255.255.0 encapsulation ppp

no shut

!−− This serial interface was created from T1 controller 0/1

interface Serial0/1:0

ip address 10.1.2.1 255.255.255.0 encapsulation ppp

no shut

Drop−and−Insert

The sample configuration below is for a VWIC−2MFT−T1−DI card where the first T1 controller (T1 0/0) has timeslots 1−8 cross−connected with timeslots 17−24 on the second T1 controller (T1 0/1).

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Note: The following example is for drop−and−insert of timeslots carrying data. There may be additional configuration options if the timeslots are carrying voice traffic; see the type option for the tdm−group command in the command reference.

Configuration

!−− Below is the configuration for the first T1 controller

controller T1 0/0 framing esf clock source line linecode b8zs

tdm−group 1 timeslots 1−8

!−− Below is the configuration for the second T1 controller

tdm−group 2 timeslots 17−24

!−− Now tie the two tdm−groups together

!−− xconnect is simply an arbitrarily−chosen tag name

connect xconnect T1 0/0 1 T1 0/1 2

Related Information

Cisco 1600 Series Routers

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Overview of Cisco WAN and Voice Interface Cards

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Installing WAN and Voice Interface Cards

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Connecting WAN and Voice Interface Cards to a Network

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