Cisco Systems 12000 series specifications Port OC-3c/STM-1 ATM Line Card Overview

Product Overviews

4-port OC-3c/STM-1 ATM Line Card Overview

The 4-port OC-3c/STM-1 ATM line card interfaces with the switch fabric of the Cisco 12000 Series Router. It provides four 155-Mbps OC-3c/STM-1c duplex SC single-mode or multimode SONET/SDH connections. This connection is concatenated, which provides for increased efficiency by eliminating the need to partition the bandwidth.

Figure 2 shows the single-mode, intermediate-range 4-port OC-3c/STM-1 ATM line card.

Figure 2 4-port OC-3c/STM-1 ATM Line Card

ACTIVECARRIERRXPKT

0

12

ACTIVECARRIERRX	ACTIVECARRIERRX		ACTIVECARRIERRX
PKT	PKT		PKT
1	2	3	Q OC-3/STM-1 SM IR POS
3			4	101925

1	Ejector lever	3	Status LEDs
2	Port 0	4	Display LEDs

4-port OC-12c/STM-4c ATM Line Card Overview

The 4-port OC-12c/STM-4c ATM line card provides the Cisco 12000 Series Router with four 622-Mbps ATM interfaces. The card interfaces to the router’s switch fabric and provides four OC-12c/STM-4c SC connectors for duplex single-mode or multimode SONET/SDH connections.

Figure 3 illustrates the single-mode, intermediate-range 4-port OC-12c/STM-4c ATM line card. There are four ports, numbered 0 to 3, on each line card. Each port has a set of status LEDs. Each SONET connection is concatenated, which provides for increased efficiency by eliminating the need to partition the bandwidth.

Figure 3 4-port OC-12c/STM-4c ATM Line Card—Intermediate-Range

0

12

ACTIVE	ACTIVE
CARRIER	CARRIER
RX CELL	RX CELL
	1

3

2

ACTIVE	ACTIVE
CARRIER	CARRIER
RX CELL	RX CELL
	3

OC-12/STM-4 SM-SC ATM

3 101923

1	Ejector lever	3	Status LEDs
2	Port 0	4	Display LEDs

ATM Line Card Installation and Configuration

OL-13004-01 5