Cisco LightStream 1010 Manuale utente

CHAPTER

Cabling and Configuring the CES Port Adapter Modules 8-1

Cabling and Configuring the

CES Port Adapter Modules

This chapter describes cabling and conﬁguration procedures for the LightStream 1010

asynchronous transfer mode (ATM) switch circuit emulation service (CES) T1 and E1 port

adapter modules (PAMs). When your switch leaves the factory, it is conﬁgured as speciﬁed

inyourorderandisreadyforinstallationandstartup.Asyourcommunicationrequirements

change, you might want to upgrade your system, add components, or change the initial

conﬁguration.

The following CES T1 and E1 PAMs are described in this chapter:

•CES T1 Twisted-pair Port Adapter Module

•CES E1 Twisted-pair Port Adapter Module

•CES E1 BNC Port Adapter Module

Software and upgrades require speciﬁc document part numbers and other frequently

updated information; therefore, only basic software conﬁguration guidelines are included

in this publication. Detailed, up-to-date instructions are included in the LightStream 1010

ATM Switch Software Conﬁguration Guide and command line interface (CLI) command

descriptions are provided in the LightStream 1010 ATM Switch Command Reference.

This chapter contains the following information:

•Overview of the CES Port Adapter Modules

•Connecting the Interface Cables and Checking the LEDs

•Conﬁguring the Interfaces

8-2 LightStream 1010 ATM Switch PAM Installation Guide

FCC Part 68 Notice

Theportadapter, Model WAI-T1C-4RJ48 used in the ATM/LANswitchcomplieswithPart

68 of the FCC rules. On the bottom of this equipment is a label that contains, among other

information, the FCC registration number. If requested, this information must be provided

to the telephone company.

This equipment cannot be used on telephone company-provided coin services. Connection

to the Party Line Service is subject to State Tariffs.

If this equipment causes harm to the telephone network, the telephone company will notify

you in advance that temporary discontinuance of service may be required. If advance notice

isn’t practical, the telephone company will notify the customer as soon as possible. Also,

you will be advised of your right to ﬁle a complaint with the FCC if you believe it is

necessary.

The telephone company may make changes in its facilities, equipment, operations, or

procedures that could affect the operation of the equipment. If this happens, the telephone

company will provide advance notice in order for you to make the necessary modiﬁcations

in order to maintain uninterrupted service.

If trouble is experienced with this equipment, please contact us for repair and warranty

information. If the trouble is causing harm to the telephone network, the telephone

company may request you remove the equipment from the network until the problem is

resolved.

It is recommended that the customer install an AC surge arrestor in the AC outlet to which

this device is connected. This is to avoid damaging the equipment caused by local lightning

strikes and other electrical surges.

Cabling and Configuring the CES Port Adapter Modules 8-3

Overview of the CES Port Adapter Modules

This equipment uses USOC jacks as listed in Table 8-1:

Table 8-1 USOC Jacks for CES Port Adapter Modules

Overview of the CES Port Adapter Modules

The circuit emulation service (CES) T1 and E1 Port Adapter Modules (see Figure 8-1) are

ideal for links that require constant bit rate (CBR) services such as interconnecting PBXs,

time-division multiplexers, and video conference equipment over campus, public, or

private networks. The four ports on the PAM can be conﬁgured as redundant links using the

switch's routing protocols. The T1 PAMs support UTP connectors and the E1 PAMs

support either twisted-pair, STP, or 75-ohm BNC connectors. Status and carrier detect

LEDs on each port give quick, visual indications of port status and operation. For detailed

network management support, comprehensive statistics gathering and alarm monitoring

capabilities are provided.

Model Name Facility

Interface Code Service Order

Code Jack Type

WAI-T1C-4RJ48 04DU9-BN 6.0N N/A

WAI-T1C-4RJ48 04DU9-DN 6.0N N/A

WAI-T1C-4RJ48 04DU9-1KN 6.0N N/A

WAI-T1C-4RJ48 04DU9-1SN 6.0N N/A

WAI-T1C-4RJ48 04DU9-1ZN 6.0N N/A

8-4 LightStream 1010 ATM Switch PAM Installation Guide

Overview of the CES Port Adapter Modules

Figure 8-1 Typical CES T1 or E1 Port Adapter Module (UTP Port Shown)

Each of the ports on the PAM can be conﬁgured to support the following clocking options:

•self-timing based on a Stratum 4 level clock

•loop timing from the received data stream—ideal for public network connections

•timing synchronized to a selected master clock port, required in order to distribute a

single clock across a network

The plug-and-play mechanisms of the LightStream 1010 allows the switch to come up

automatically. All conﬁguration information for port adapter modules can be saved

between hot swaps and switch reboots, while interface types are automatically discovered

by the switch. This eliminates mandatory manual conﬁguration.

The LightStream 1010 supports any combination of port adapter modules. Customers can

conﬁgure their switches with only the number and type of interfaces required, with up to

32 CES T1 or CES E1 interface ports.

This section describes the following:

•CES T1 and E1 PAM Features

•CES T1 and E1 PAM Applications

H8803

CES E1 120Ω

Cabling and Configuring the CES Port Adapter Modules 8-5

Overview of the CES Port Adapter Modules

CES T1 and E1 PAM Features

The CES T1 and E1 PAMs provide the following features:

•4-port T1 or E1 CBR port adaptor module (PAM)

•Structured and unstructured CBR processing

•Adaptive, Synchronous Residual Time Stamp (SRTS), and synchronous clocking for

CBR trafﬁc

•Clear Channel and Channelized with CAS signaling on CBR ports

•On-line Insertion and Removal

•Clear Channel Circuit Emulation

•IOS CLI (Command Line Interface)

•Global network clock synchronization (Nettime)

•Dynamic ATM addressing for CBR channel-groups

CES T1 and E1 PAM Applications

The CES T1 and E1 Port Adapter Modules have four ports and are ideal for intercampus or

wide-area links. Figure 8-2 is an example of the CES T1 and CES E1 PAM applications.

8-6 LightStream 1010 ATM Switch PAM Installation Guide

Overview of the CES Port Adapter Modules

Figure 8-2 CES T1 and E1 Port Adapter Module Applications

The CES T1 or CES E1 PAM provides the following ATM connections:

•Interconnecting PBXs

•Time-division multiplexer connections

•Video conference connections

NM3991

T1 between

buildings

or to WAN CODEC

ATM Switch

Video

Telephone

Time Division

Multiplexer

Cabling and Configuring the CES Port Adapter Modules 8-7

Connecting the Interface Cables and Checking the LEDs

All CES interfaces are bidirectional. You must use the appropriate CES interface cable to

connect the CES BNC or twisted-pair PAM interface with an external CES network.

This section describes the following:

•CES Connection Equipment

•Connecting the Interface Cables and Checking the LEDs

CES Connection Equipment

For CES trafﬁc over twisted-pair, use the RJ-48C connect to connect the CES T1 PAM or

CES E1 PAM to the external CES network. See the section “Preparing Network

Connections” in the chapter “Preparing for Installation” for a description of an RJ-48C

connector and twisted-pair and shielded twisted-pair cable.

For coaxial trafﬁc, use the BNC connector to connect the CES E1 PAM with the external

CES network. See the section “Preparing Network Connections” in the chapter “Preparing

for Installation” for a description of a BNC connector and coaxial cable.

CES T1 and E1 PAM Network Connections and LEDs

The CES T1 and CES E1 PAMs provide an interface to CES switching fabrics for

transmitting and receiving data at up to 1.544 Mbps (T1) and 2.048Mbps (E1)

bidirectionally. The PAM LEDs provide status information for the port adapter module’s

individual interface connections.

Caution T1 and E1 port must be connected to an NT1 device.

CES Network Connections

All CES T1 and CES E1 interfaces are bidirectional. You must use the appropriate CES

interface cable to connect the CES T1 or CES E1 PAM with an external CES network.

8-8 LightStream 1010 ATM Switch PAM Installation Guide

Connecting the Interface Cables and Checking the LEDs

The CES PAM can support interfaces that connect to the following physical layers:

•E1 G.703 with HDB3 coding

•E1 2.048 Mbps coaxial cable

Connect the CES interface cables as shown in Figure 8-3. For detailed descriptions of ATM

cabling requirements, refer to the sections “Distance Limitations” and “ATM Connection

Equipment” in the chapter “Preparing for Installation.”

CES T1 and E1 Module LEDs

This section describes the LEDs on the faceplate of the CES modules, shows their possible

illumination states, and deﬁnes the operational status of the associated ports, given certain

illumination patterns of the LEDs.

The LEDs provide status information for the port adapter module’s individual BNC and

twisted-pair interface connections. The LEDs are shown in Figure 8-3.

Cabling and Configuring the CES Port Adapter Modules 8-9

Connecting the Interface Cables and Checking the LEDs

Figure 8-3 CES T1 and E1 Connections and LEDs

The LEDs for the CES T1 and CES E1 modules exhibit the illumination states shown in

Table 8-2.

H9220

CES E1 75

Ω

TX 0

TX 1

TX 0

TX 1

BNC connectors

CES E1 120Ω

RJ-48c connectors

CES T1

RJ-48c connectors

8-10 LightStream 1010 ATM Switch PAM Installation Guide

Connecting the Interface Cables and Checking the LEDs

Table 8-2 LED Illumination States of CES T1 or CES E1 PAMs

Table 8-3 shows the possible status conditions of a CES T1or CES E1 port, as indicated by

certain settings of associated port LEDs.

Table 8-3 Port Status Conditions Indicated by CES T1 or CES E1 LEDs

Note During alarm integration, the indicated LEDs will ﬂash the “upcoming” or “next”

state combination indicated in Table 8-3. For example, when the line conditioning state

machine is notiﬁed of loss of signal (LOS), it will cause S1 and S2 to ﬂash red, since a

continued LOS will put the port in the red alarm state.

Port LEDs Illumination States

S1 (status1) Steady green, red, or yellow; ﬂashing green, red, or yellow; or off.

S2 (status2 Steady green, red, or yellow; ﬂashing green, red, or yellow; or off.

CD (carrier detect) Either on (green) or off.

Port Status Indication S1 LED State S2 LED State CD LED State

Port not conﬁgured Off Off Off

Port administratively down Off Off Off

Normal Green Green Green

Red alarm due to framing error Red Red Off

Red alarm due to loss of cells Red Red Green

Yellow alarm Yellow Off Green

Blue alarm Off Yellow Green

Port in loop state Flashing green Flashing green Green

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