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2.3 OPERATING SPECIFICATIONS
The section provides operating specifications for the RMIMs. Cabletron Systems
reserves the right to change these specifications at any time without notice.
REPEATER FUNCTIONALITY
Preamble
Input:
Output:
JAM Output:
Minimum Packet:
FAULT Protection:
Installation Guide
OPERATING SPECIFICATIONS
Minimum of 40 bits. Maximum is the
number of bits received.
Minimum of 64 bits, last 2 bits are 1, 1.
Maximum is the number of bits received
plus 6.
If a collision occurs on one of the segments,
a pattern of 1, 0 is sent to the other segments.
96 bits including preamble (Packet Repeated
fragments are extended using the JAM [1, 0]
data pattern).
Each segment will disconnect itself from the
other segments if 32 consecutive collisions
occur, or if the collision detector of a
segment is on for longer than approximately
110 s. This FAULT protection will reset
automatically after one packet is transmitted
onto or received from the FAULT protected
segment without causing a collision.
2-11
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