Cabletron Systems EPIM F3 Betriebsanweisung PDF herunterladen (Seite 19)

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.

GENERAL

Operating System Memory: 4 MB

Internal Processor: Intel 80C960CA operating at

24 MHz

Ethernet Controller: National Semiconductor

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).

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Cabletron Systems EPIM F3 Betriebsanweisung Seite 19