RAD Data comm ASM-20 Especificações descarregar pdf (Página 67)

ASM-40 Ver. 1.0 Introduction C-1

Appendix C

IR-ETH/QN (IR-ETH/Q)

Interface Module

C.1 Introduction

The IR-ETH/QN interface module includes a high performance self-learning Fast

Ethernet bridge, which is connected to the LAN via a single 10BaseT or 100BaseT

port, operating in full or half duplex and providing simple and cost-effective

interconnection between 10/100BaseT LANs. The IR-ETH/QN interface module

also supports IEEE 802.1/P frames and IEEE 802.1/Q frames, enabling VLAN

applications.

ASM-40 units ordered with the IR-ETH/Q interfaced are supplied with the

functionally equivalent IR-ETH/QN interface.

The module automatically learns MAC addresses of the LAN to which it is

connected. Its LAN table stores up to 1,024 addresses with 5-minute automatic

aging.

Filtering and forwarding is performed at the maximum theoretical rate of

150,000 packets per second (wire speed). The buffer with 0.512 Mbit SRAM can

hold 85 frames with a throughput latency of one frame. The forwarding of the

multicast messages from LAN to WAN can be disabled.

Figure C-1

shows a typical application using ASM-40 with IR-ETH/QN module.

ASM-40 ASM-40

Figure C-1. Typical Application of ASM-40 with IR-ETH/QN Module

Note

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 115 116

Sem comentários

RAD Data comm ASM-20 Especificações Página 67