Cabletron Systems NBR-620 manual C.2 TRANSCEIVER REQUIREMENTS, C.3 THE NBR AS A MULTIPORT ROUTER

Appendix C: Network Planning and Configuration

C.2 TRANSCEIVER REQUIREMENTS

When you connect an external network segment to an EPIM-A in your hub through a transceiver, that transceiver must meet IEEE 802.3 standards or Ethernet version 1.0 or 2.0 requirements. The transceiver must also have SQE disabled.

C.3 THE NBR AS A MULTIPORT ROUTER

An NBR routing image allows you to set up the module as a multi-port router. For information on how to upgrade the NBR to perform routing functions, and how to configure the NBR as a multi-port router, refer to Cabletron Systems Routing Services Configuration Guide.

C.4 THE NBR-420/NBR-620 AND BRIMS

The example in Figure C-1 illustrates just one possible NBR-620 BRIM configuration. The NBR620/BRIM combination provides various connection possibilities, depending on the BRIM(s) you use. Refer to individual BRIM manuals and/or Cabletron Systems Routing Services Configuration Guide to better understand the capabilities of each device.

T1 Connection FDDI Backbone

NBR-620MULTI PORT BRIDGE ROUTER	WITH	LANVIEW®	T1/FT1	SYNC
				BRIM-WT1	PORT E
				PORT F

		RECEIVE
		TRANSMIT
	PWR	COLLISION
	CPU	STAND BY
COM 2	COM 1	D C B A EPIM	PORT D	PORT C

PORT B

BRIM-A100

PORT A

Port D

Port C

Port B Port A

Ethernet

Backbone

1092_05

Figure C-1 The NBR-620 and BRIMs

Page C-6 NBR-SERIES Installation Guide