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Table of Contents

CES T1 and E1 Port Adapters

CES T1 and E1 Port Adapters

This chapter describes the circuit emulation service (CES) T1 and E1 port adapters that are supported in the following systems:

This chapter includes the following sections:

Overview of the CES T1 and E1 Port Adapters

CES T1 and E1 port adapters are used for links that require constant bit rate (CBR) services such as interconnecting PBXs, time-division multiplexers, and video conference equipment over campus, private, or public networks. The T1 port adapters support unshielded twisted-pair (UTP) connectors and the
E1 port adapters support either twisted-pair, foil twisted-pair (FTP), or 75-ohm BNC connectors.

Interface Ports Supported

The ATM switch supports any port adapter combination required. Table 12-1 identifies the maximum number of CES T1 or CES E1 interface ports supported in each system.


Table 12-1: Maximum Interface Ports Supported by System Type
System Type Max. No. of CES T1 or CES E1 Interface Ports

Catalyst 8540 MSR

64

Catalyst 8510 MSR

32

Catalyst 5500

32

LightStream 1010

32

Figure 12-1 shows a CES T1 or E1 port adapter that supports UTP connectors.


Figure 12-1: CES T1 or E1 Port Adapter with UTP Connectors

ATM Connections Supported

The CES T1 or CES E1 port adapters have four ports that provide the following ATM connections for intercampus or wide-area links, as shown in Figure 12-2 :


Figure 12-2: CES T1 and E1 Port Adapter ATM WAN Connections

FCC Part 68 Notice

The CES T1 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 notifies you in advance that temporary discontinuance of service might be required. If advance notice is not practical, the telephone company notifies you as soon as possible. Also, you are advised of your right to file a complaint with the FCC if you believe it is necessary.

The telephone company can make changes in its facilities, equipment, operations, or procedures that might affect the operation of the equipment. If this happens, the telephone company provides advance notice so you can make the necessary modifications 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 can request that you remove the equipment from the network until the problem is resolved.

We recommend that the customer install an AC surge arrestor in the AC outlet to which this device is connected. This is to avoid equipment damage caused by local lightning strikes and other electrical surges.

This equipment uses Uniform Service Order Code (USOC) jacks as listed in Table 12-2.


Table 12-2: USOC Jacks for CES Port Adapters
Model No. 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

Cabling the CES T1 and E1 Port Adapters

This section describes supported cabling configurations for the CES T1 and E1 ATM port adapters, which provide CES T1 and E1 twisted-pair and CES E1 BNC connections.


Note All CES interfaces are bidirectional. You must use the appropriate CES interface cable to connect the CES BNC or twisted-pair port adapter interface with an external CES network.

CES T1 and E1 Port Adapter Supported Interfaces

The CES T1 and CES E1 port adapters provide an interface to CES switching fabrics for transmitting and receiving data at up to 1.544 Mbps (T1) and 2.048 Mbps (E1) bidirectionally. The CES port adapters can support interfaces that connect to the following physical layers:


Note For descriptions of ATM cabling requirements, see the "ATM Connection Equipment Requirements" section.

CES T1 and E1 Port Adapter Connectors

To connect the CES T1 or CES E1 port adapters to the external CES network, use the following connectors (see Figure 12-3):


Caution Connect T1 and E1 ports to a network termination unit (NTU). NTU devices should comply with UL 1950, CSA 950, EN 60950, and IEC 950 standards.


Note For a description of these connectors, see the "ATM Connection Equipment Requirements" section. (Figure 2-3 shows an RJ-48c connector. Figure 2-4 shows a BNC connector.)


Figure 12-3: CES
T1 and E1 Connections and LEDs

CES T1 and E1 Port Adapter LEDs

The LEDs provide status information for the individual BNC and twisted-pair interface connections. The LEDs are shown in Figure 12-3. Table 12-3 describes the LEDs and Table 12-4 lists the possible status conditions.


Table 12-3: CES T1 and E1 Port Adapter LED Descriptions
LED Description

S1 (status1)
(TX)

Steady green, red, or yellow; flashing green, red, or yellow; or off

S2 (status 2)
(RX)

Steady green, red, or yellow; flashing green, red, or yellow; or off

CD (carrier detect)

Either on (green) or off


Table 12-4: CES T1 and E1 LED Status Conditions
Port Status Indication S1 LED State
(TX)
S2 LED State
(RX)
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


Note During alarm integration, the indicated LEDs flash the "upcoming" or "next" state combination indicated in Table 12-4. For example, when the line conditioning state machine is notified of loss of signal (LOS), S1 (TX) and S2 (RX) flash red because a continued LOS puts the port in the red alarm state.


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Posted: Mon May 8 18:51:39 PDT 2000
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