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Installation
Table 3-1. LANVIEW LED Activity at First Boot-up (Continued)
LED label
Ring 1 16 Mb
other rings
16 Mb
IN USE (all)
Port (all)
PEN (all)
LNK (all)
Boot-up may take a few minutes. When the Port LEDs turn from RED to
off, boot-up is complete. If the boot-up does not proceed as described
above, refer to Chapter 4, Testing and Troubleshooting.
The LED activity presented above represents a power-up with no
cables connected to the TDRMIM. See Section 4.2 to determine
TIP
appropriate activity for other start-up conditions.
Because port assignments can be made only by a management module, the
TDRMIM goes through a bypass period at each boot-up to provide a
window of opportunity during which a management module may
announce its intention to make these assignments. During this boot-up
period, the TDRMIM holds itself in full bypass mode by setting all ports
to loop-back to prevent them from connecting to any ring. After the
boot-up procedure is complete—the TDRMIM either has been
programmed by management or has gone to default mode—the TDRMIM
returns to normal operations.
3.2.5
Connecting Twisted Pair Cabling
The physical lobe connection from the TDRMIM to the Token Ring station
does not require the use of a crossover cable. To provide the necessary
Page 3-4
At moment of
Power-on
determined by
Switch #1
YELLOW
off
RED
GREEN
off
After
Management
Module
boot-up
determined by
management
determined by
management
off
off
determined by
management
off
After Default
boot-up
(management
module
not present)
determined by
Switch #1
YELLOW
off
off
GREEN
off
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