Case 8000 Series - Chapter 2 Installation; 2.1 Hardware Description

2 Installation
This chapter is provided as a supplement to the full installation guides for
Series 8000, knowledge of and reference to which is assumed throughout.
2.1 Hardware Description
The Router software can be loaded onto one of two hardware variants: the
TGate/Router card for use within the 8325 card frame, and the
TGate/Router module for use in either the 8425 or 8525 card frame.
Whichever variant is in use, TGate/Router provides a single IEEE 802.3
compliant interface. Various physical LAN interfaces are available as
LPIMs (LAN Port Interface Modules). The interfaces available are
standard AUI, 10Base2 (Cheapernet), and 10BaseT (twisted pair). Each
TGate/Router carries a unique 48-bit Ethernet address which is stored in
the Ethernet PROM.
The following subsections give a brief description of the two TGate/Router
hardware variants.
2.1.1 The 8325 TGate/Router Card
Figure 2-1 8325 TGate/Router Card Rear Panel
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SAFETY WARNING - See instructions for use
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Green LED
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LPIM Location
The rear panel carries four centrally-mounted 25-way D-type female
connectors, all of which are reserved for future use. On the left is the AUI
port 15-way D-type female connector. Next to the AUI is the LPIM site for
an optional 10Base2 or 10BaseT interface to the same port. The card also
contains an 8-pin diagnostic port for use by Cray engineers only.
X870-300351 Issue 1 2-1 Rev.0