NonStop S-Series Hardware Installation and FastPath Guide (G06.28+)

Introduction
HP NonStop S-Series Hardware Installation and FastPath Guide—541880-001
1-37
Installation Overview
Other components, such as ServerNet/FX adapters and ServerNet/DAs, can be
installed in slots 51 and 52. However, installing components besides SEBs or MSEBs
in these slots prevents the attaching of I/O enclosures to the processor enclosure.
In Tetra 16 topologies, slots 53 and 54 contain SEBs or MSEBs if both the following are
true:
•
These slots belong to groups 01 through 04.
•
I/O enclosures are attached to these groups.
IOAM Enclosure Cabling
An IOAM enclosure is mounted in a standard 19-inch rack and connects to the MSEB
of S76000 and later NonStop S-series systems using multimode LC-SC fiber-optic
cables up to a maximum length of 125 meters. The LC connector connects to the
ServerNet switch board, and the SC connector connects to the MSEB.
ServerNet Cables
ServerNet cables connect SEBs, MSEBs, IOMF CRUs, IOMF 2 CRUs, and IOAM
enclosures. These connections form the ServerNet system area network (ServerNet
SAN), which allows enclosures and other devices to communicate.
Cable Compatibilities
Different ServerNet cables connect to different components. When more than one type
of cable can connect to a component, the choice of cable depends on the type of plug-
in card (PIC) connector installed on the component.
Caution. If IOAM enclosures are installed in the field, they must be installed by service
providers trained by HP. All cabling connections, including connections to FCDMs and ESSs,
must be performed by your service provider. Your service provider can refer to the Modular I/O
Installation and Configuration Guide located in the NTL Hardware Service and Maintenance
Collection in the Support and Service Library.