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INSTALLATION REQUIREMENTS/SPECIFICATIONS
2.6 OPERATING SPECIFICATIONS
The operating specifications for the SEHI are described in this section.
Cabletron Systems reserves the right to change these specifications at
any time without notice.
GENERAL
Operating System Memory:
Internal Processor:
Ethernet Controller:
Non-Volatile RAM:
EPROM:
FLASH MEMORY:
Delay Times (Start of Packets):
Twisted Pair to EPIM- A
Twisted Pair to Twisted Pair
EPIM-A to Twisted Pair
Delay Times (JAM):
Twisted Pair to EPIM-A
Preamble:
Input:
Output:
1.5 MB
Intel i960 operating at 16 MHz
National Semiconductor
DP83916
32 KB with battery back-up
64 KB
1 MB
1.10 microseconds
1.00 microseconds
1.00 microseconds
960 nanoseconds
Minimum of 40 bits required
64 bits min. (last 2 bits are 1, 1)
Page 2-17
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