Table of Contents

FCC Part 68 Notice
Overview of the CES Port Adapter Modules

CES T1 and E1 PAM Features
CES T1 and E1 PAM Applications

Connecting the Interface Cables and Checking the LEDs

CES Connection Equipment
CES T1 and E1 PAM Network Connections and LEDs

CES Network Connections
CES T1 and E1 Module LEDs

Configuring the Interfaces

Default ATM Interface Configuration Without Autoconfiguration

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 in your order and is ready for installation and startup. As your communication requirements change, you might want to upgrade your system, add components, or change the initial configuration.

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.

• Overview of the CES Port Adapter Modules

• Connecting the Interface Cables and Checking the LEDs

• Configuring the Interfaces

FCC Part 68 Notice

The port adapter, Model WAI-T1C-4RJ48 used in the ATM/LAN switch complies with Part 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.

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

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.

• CES T1 and E1 PAM Features

• CES T1 and E1 PAM Applications

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.

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.

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.

The LEDs for the CES T1 and CES E1 modules exhibit the illumination states shown in Table 8-2.

Table 8-3 shows the possible status conditions of a CES T1or CES E1 port, as indicated by certain settings of associated port LEDs.

Configuring the Interfaces

When the switch is powered on initially without any previous configuration data, the ATM interfaces are automatically configured on the physical ports. ILMI and the physical card type are used to automatically derive the ATM interface type, UNI version, maximum virtual path identifier (VPI) and virtual channel identifier (VCI) bits, ATM interface side, and ATM UNI type.

Default ATM Interface Configuration Without Autoconfiguration

If ILMI has been disabled or if the connecting end node does not support ILMI, the following defaults are assigned to all CES T1 and CES E1 interfaces:

• ATM interface type = UNI

• UNI version = 3.0

• Maximum VPI bits = 8

• Maximum VCI bits = 14

• ATM interface side = network

• ATM UNI type = private

• Loopback = no loop

• Signaling mode = no signaling

• Clock-source = network derived

• Data format = clear channel

• Timing = synchronous

• Line build out = 0 to 110 feet

• Cell delay variation = 2,000 microseconds

• Channel associated signaling = false

• Partial fill = 47

The following PAM types have specific defaults assigned:

CES T1 PAM:

• Framing = ESF

• Line coding = B8ZS

• Line state = no alarm

CES E1 PAM:

• Line type = E1

• Line coding = HDB3

• International bits = 0x3

• National bits = 0x1f

• Multi-frame spare bits = 0xb

The following defaults apply for all versions of the CES modules, unless you change them manually by means of specific CLI commands issued during module configuration:

• CES-IWF AAL1 service unstructured---This default setting automatically establishes unstructured (clear channel) CES services for a CES module.

• CES-IWF AAL1 clock source synchronous---This default setting automatically establishes synchronous clocking for all CES-IWF operations.

This concludes the explanation of the CES T1 and CES E1 port adapter module cabling and configuration.

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