Cabletron Systems NBR-420 - Manual (Page 68)

Appendix C: Network Planning and Configuration
Page C-6 NBR-SERIES Installation Guide
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.
Figure C-1 The NBR-620 and BRIMs
T1 Connection FDDI Backbone
Port D Port C Port B Port A
Ethernet
Backbone
NBR-620 MULTI PORT BRIDGE ROUTER WITH LANVIEW ®
RECEIVE TRANSMIT COLLISION STAND BY EPIM D C B A
PWR CPU COM 2 COM 1 DISPLAY RESET PORT D PORT C PORT B PORT A
PORT F PORT E
EPIM-A PWR EPIM-A PWR EPIM-A PWR EPIM-A PWR
LNK YEL STB DSR LNK T1/FT1
TST RED SYN CTS TST
SYNC
BRIM-WT1 BRIM-A100
STY LNK XMT RCV
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