Enterasys mrxi-22 User Guide
INSTALLATION REQUIREMENTS/SPECIFICATIONS
2-7
2.4
OPERATING SPECIFICATIONS
The operating specifications for the MRXI are described in this section.
Cabletron Systems reserves the right to change these specifications at any
time without notice.
Cabletron Systems reserves the right to change these specifications at any
time without notice.
GENERAL
Operating System Memory:
4 MB
Internal Processor:
Intel 80C960CA operating at
24 MHz
24 MHz
Ethernet Controller:
National Semiconductor
DP83932
DP83932
Static RAM:
128 KB with battery back-up
EPROM:
128 KB
FLASH MEMORY:
2 MB
Delay Times (Start of Packets):
Twisted Pair to EPIM- A
900 nsec.
Twisted Pair to Twisted Pair
1 msec.
EPIM-A to Twisted Pair
750 nsec.
Delay Times (JAM):
Twisted Pair to EPIM-A
1.16 msec.
Preamble:
Input:
Minimum of 40 bits required.
Output:
64 bits min. (last 2 bits are 1, 1).