CE1 Frame Relay Port Adapters

This chapter describes the channelized E1(CE1) Frame Relay 2.048-Mbps ATM port adapter that is supported in the following ATM systems:

• Catalyst 8540 MSR
  
  
• Catalyst 8510 MSR
  
  
• LightStream 1010
  
  
• Catalyst 5500
  
  

This chapter includes the following sections:

• About CE1 Frame Relay Port Adapters
  
  
• Cabling CE1 Frame Relay Port Adapters
  
  

About CE1 Frame Relay Port Adapters

The channelized E1 (CE1) Frame Relay port adapter operates at 2.048 Mbps and is subdivided into 30 B channels and 1 D channel. The CE1 Frame Relay port adapter supports Frame Relay and is used for intercampus or wide-area links. The CE1 Frame Relay port adapter supports UTP and RJ-45 connectors.

Interface Ports Supported

The ATM switch router supports any port adapter combination required. Table 12-1 identifies the maximum number of CE1 Frame Relay interface ports supported in each system.

Figure 12-1 shows a CE1 Frame Relay port adapter with UTP connectors.

Figure 12-1: CE1 Frame Relay Port Adapter with UTP Connectors

ATM Connections Supported

The CE1 Frame Relay port adapter provides ATM connectivity to the WAN through T1 or E1 trunk lines. (See Figure 12-2.)

Figure 12-2: CE1 Frame Relay Port Adapter ATM WAN Connections

Cabling CE1 Frame Relay Port Adapters

This section describes supported cabling configurations for the channelized E1 (CE1) Frame Relay 2.048-Mbps ATM port adapter.

Note   All ATM interfaces are full duplex. You must use the appropriate ATM interface cable to connect the ATM BNC or UTP port adapter interface with an external ATM network.

CE1 Frame Relay Port Adapter Supported Interfaces

The CE1 Frame Relay port adapter provides an interface to ATM switching fabrics for transmitting and receiving data at 2.048 Mbps bidirectionally. The actual data rate is determined by the physical layer interface module (PLIM). The CE1 Frame Relay port adapter can support interfaces that connect to the CE1 2.048-Mbps UTP cable with an RJ-48c connector.

Caution   Connect the CE1 Frame Relay ports to a network termination unit (NTU). NTU devices should comply with UL 1950, CSA 950, EN 60950, and IEC 950 standards.

Note   Table B-1 on lists cabling requirements.

CE1 Frame Relay Port Adapter Connectors

For the CE1 trunks, use an RJ-48c connector and UTP cable to connect the CE1 Frame Relay port adapter with the WAN or other switch routers. (See Figure 12-3.)

Note   See the "RJ-48c Connector Pinouts" section for RJ-48c connector information.

Figure 12-3: CE1 Frame Relay Connections and LEDs

CE1 Frame Relay Port Adapter LEDs

The LEDs provide status information for the individual CE1 Frame Relay interface connections. The LEDs are shown in Figure 12-3 and described in Table 12-2.