HP Vectra 520 Guia de Instalação Página 78

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Hardware installation: Application Module (SNN/SNN-E) 3-23
Meridian MAX
Installation Guide
Product release 8
Input/output port assignments
There are five versions of the SNN/SNN-E hardware platform based on the
number of MVME332XTS/XT cards configured on the system. An
SNN/SNN-E system can be configured with anywhere from one to five
MVME332XTS/XT cards.
Note: Card 1, Conn 1 on the generic I/O panel connects to the system
console.
Each MVME332XTS/XT, or I/O card, has a maximum of three ports that
can be connected to multiport cables as seen in the “VME multiport cable”
subsection. Each multiport cable has three RS-232 serial port connectors
labeled A, B, and C. The ports in the multiport cable can be connected to
peripherals or a limited choice of other devices, except where noted below.
Cable A of the multiport cable connected to Card 2, Conn 1 must be
connected to the Meridian 1 for use with the High-Speed Link.
Cable C of the multiport cable connected to Conn 3C of each card
cannot be used, and should not be connected to any type of device.
This is caused because each I/O card has only eight serial ports while
the three multiport cables provide nine port connectors.
If your system is equipped with the Configuration Control feature, you
must use one of the cables to connect to the Meridian 1.
If your system has NAC connectivity, you require a port for the
Network Link. Bear in mind that the Network Link can only be
assigned to a single port and reduces the number of printers or
supervisor workstations by one.
At least one supervisor workstation and one printer must be connected
to any I/O card through the multiport cable.
Aside from these restrictions, you can attach the remainder of the cables to
supervisor workstations, printers, or modems.
Note: The Configuration Control feature uses a Load Management
Link that is also referred to as a Configuration Control Link.
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