Introduction; Spu Physical Description; I/O Extender Physical Description - HP 3000 Installation Manual

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INTRODUCTION
The HP 3000 Series 37XE system, product number 324S0A, is made up of the HP 3000 Series 37 System
Processing Unit (SPU), the I/O Extender, and the system cabinet. Each of the components is described
below.
SPU PHYSICAL DESCRIPTION
The Series 37 SPU consists of a five-slot card cage, a power supply, and battery backup circuitry. The
boards that make up the SPU are installed in the following slots:
Slot 5 Central Processing Unit (CPU)
*
Slot 4 Peripheral Interface Processor (PIC) or
Advanced Terminal Processor (ATP37)
**
Slot 3 5 12k byte Memory, A TP 3 7, PIC, or empty
***
Slot 2 5 12k byte or 2048k byte Memory
*
Slot 1 ATP37
*
*
Must be installed in this'slot.
**
Do not move the PIC PCA unless four ATP37 PCAs and
two Memory PC As are installed in the system.
***
This slot can be empty if one 2048k byte Memory PCA is installed.
When running some of the diagnostic programs, you may see messages that refer to the TIC. The acronym
refers to the Terminal Interface Controller. The TIC PCA is synonymous with the A TP 37 PCA.
1/0 EXTENDER PHYSICAL DESCRIPTION
The I/O Extender provides five additional slots for ATP37, PIC, INP, or other interface PCAs. The
backplanes, power supplies, battery packs, and rear panels of the SPU and I/O Extender are identical.
The differences between the SPU and the I/O Extender are:
• The CPU board and the Memory boards cannot be installed in the I/O Extender.
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