Cabling the 25-Mbps Port Adapter

This chapter describes supported cabling configurations for the 12-port, 25-Mbps ATM port adapter, and is organized into the following sections:

For detailed, up-to-date configuration instructions, see the following publications:

Catalyst 8540 MSR Software Configuration Guide
LightStream 1010 ATM Switch and Catalyst 8510 MSR Software Configuration Guide
Catalyst 5000 Series Software Configuration Guide

For command-line interface (CLI) command descriptions, see the following publications:

Catalyst 8540 MSR Command Reference
LightStream 1010 ATM Switch and Catalyst 8510 MSR Command Reference
Catalyst 5000 Series Command Reference

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

25-Mbps Port Adapter Supported Interfaces

The 25-Mbps port adapters provide an interface to ATM switching fabrics for transmitting and receiving data at up to 25 Mbps bidirectionally over 12 interfaces.

Note For descriptions of ATM cabling requirements, refer to the section "ATM Connection Equipment Requirements" in the chapter "Installing ATM Port Adapters."

25-Mbps Port Adapter Connectors

Use the 96-pin Molex connector to connect the 12 RJ-45 UTP to the end workstations. (See Figure 9-1 .)

For UTP traffic, use the RJ-45 connector to connect the 25-Mbps port adapter to the workstations.

Note For a description of these connectors, see the section "ATM Connection Equipment Requirements" in the chapter "Installing ATM Port Adapters." (Figure 2-6 shows a 96-pin Molex connector. Figure 2-3 shows an RJ-45 connector.)

Figure 9-1: 25-Mbps Port Adapter UTP Connections and LEDs

25-Mbps Port Adapter LEDs

The LEDs provide status information for the individual 25-Mbps interface connections, and they are described in Table 9-1 and shown in Figure 9-1 .

Table 9-1: 25-Mbps Port Adapter LED Descriptions
LED Description

(receive)

Off---No receive line activity
Flashing green---Cells being received: blinks every five seconds and pulse rate increases with data rate
Flashing yellow---Loopback
Steady yellow---Alarm FERF¹
Red---Alarm (Line Code Error or LCD²)

¹FERF = far-end receive failure.
²LCD = loss of cell delineation.

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