Cisco Systems ONS 15454 SDH specifications 5.4 G1000-4Card, 3 G1000-4Faceplate and Block Diagram

Chapter 5 Ethernet Cards

5.4 G1000-4 Card

5.4 G1000-4 Card

The ONS 15454 SDH uses G1000-4 cards for Gigabit Ethernet (1000 Mbps). The G1000-4 card provides four ports of IEEE-compliant, 1000-Mbps interfaces. Each port supports full-duplex operation for a maximum bandwidth of STM-16 on each card.

The G1000-4 card uses GBIC modular receptacles for the optical interfaces. For details, see the “5.8 GBICs and SFPs” section on page 5-14.

Figure 5-3shows the card faceplate and the block diagram of the card.

Figure 5-3 G1000-4 Faceplate and Block Diagram

G1000

4

FAIL

ACT

RX

1

TX

ACT/LINK

RX

2

TX

ACT/LINK

RX

3

TX

ACT/LINK

RX

4

Flash	DRAM		CPU	Decode	To FPGA, BTC,
				PLD
					MACs
									B
									a
				Mux/	Inter-			Protect/	c
	Trans-		Ethernet			POS	BTC	Main	k
GBICs	ceivers	MACs/switch		Demux	face	Function		Rx/Tx	p
				FPGA	FPGA			BPIAs	l
									a
									n
									e
Power			Clock
		Generation
					Buffer
					memory				67863

TX

ACT/LINK

The G1000-4 Gigabit Ethernet card provides high-throughput, low latency transport of Ethernet encapsulated traffic (IP and other Layer 3 protocols) across a SDH network. Carrier-class Ethernet transport is achieved by hitless (< 50 ms) performance in the event of any failures or protection switches (such as 1+1 automatic protection switching [APS], SNCP ring, or MS-SPRing. Full provisioning support is possible via Cisco Transport Controller (CTC) or Cisco Transport Manager (CTM). Each G1000-4 card performs independently of the other cards in the same shelf.

Cisco ONS 15454 SDH Reference Manual, R5.0

April 2008 5-7