Specifications

14 Port Interface Card

C613-03023-00 REV P

AT-AR026 4ETH PIC

The AT-AR026 4ETH PIC provides four 10BASE-T/100 BASE-TX auto-

negotiating ports. The ports have RJ-45 connectors and provide wire speed

unmanaged layer 2 switching.

AT-AR026 4ETH PICs are not recommended for use in AT-AR040 or

AT-AR040-B NSM PIC bays because performance of these interfaces is likely to

be reduced and packet loss may occur.

The front panel of the AT-AR026 4ETH PIC is shown in Figure 9, and the

functions of the LEDs are listed in Table 9 on page 14.

Figure 9: AT-AR026 4ETH PIC

The AT-AR026 PIC includes a switch chip that switches independently of the

switch, router, or NSM that the PIC is installed in. The show interface

command will show each correctly installed AT-AR026 as a single interface.

The 10/100 “front side” Ethernet ports will not be shown.

AT-AR026 features include:

■ Five integrated switch ports with physical layer transceivers—four 10/100

Ethernet switch ports, and one fixed 10 Mbps port acting as the PIC to base

unit connector

■ 128 kbytes of frame buffering SRAM

■ 1.4 Gbps high performance memory bandwidth

■ 10BASE-T and 100BASE-TX modes of operation

■ LED indicators for link, activity, full/half duplex, and port speed

■ Hardware based 10/100, full/half duplex, flow control, and auto-

negotiation

Table 9: AT-AR026 4ETH PIC LED functions (two LEDs per port)

LED Function

Left Lit when the port is operating at 100Mbps and full duplex.

Right Lit when a link has been established. Flashing when data is being transmitted

through the port.

10BASE-T/100BASE-TX Ethernet ports

(RJ45 connectors)

AR026FP

LEDs

10/100 ETH