Siemens Simatic PC Panel PC 870, Руководство по эксплуатации оборудования

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Hardware Information
Release 11/02
7-17
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
7.5.3 Assignment of the internal ports on the motherboard
Interface Posi-
tion Connec-
tor Description
Memory X3, X4,
X5 3 SO-DIMM sockets, 64 bit
Processor X1 Socket for FCPGA processor
Bus expansion X20 Socket for bus expansion, assigned with ISA and
PCI bus signals)
Power supply X50 20-pin cable connector for power supply
Floppy X26 Two drives are possible (82078 compatible)
360 kB, 720 kB, 1.2 MB, 1.44 MB
3F0h – 3F7h, 370h – 377h, can be disabled
IRQ 6, edge-triggered
34-pin, socket for standard floppy drive
3.5” hard disk
inter-
X7 170h-177h, 1F0h-1F7h, can be disabled
IRQ 14, IRQ 15, edge-triggered
40-pin, 2.54 mm plug connector (3.5” HD, primary);
a maximum of 2 drives is possible
CD-ROM drive
nal
X10 170h-177h, 1F0h-1F7h, can be disabled
IRQ 14, IRQ 15, edge-triggered
44-pin, 2 mm plug connector (CDROM, secondary
master);
a maximum of one drive is possible
V.24/TTY module X28, X29 Connection for V.24/TTY hybrid (physical interface)
Power supply
connection for
CPU fan X41 Power supply for CPU fan,
3-pin, plug connector
Power supply
connection for
device fan X42 Power supply for device fan,
3-pin, plug connector
Backup battery X49 Connection for backup battery,
2-pin, plug connector
Port to bus module (X20)
The computer unit has a bus module with a PCI expansion slot and a shared
ISA/PCI slot. Expansion boards can be installed complying with ISA specification
(Rev. 3.1) and PCI specification (Rev. 2.0) with a maximum length of 265 mm
(175 mm for shared ISA/PCI modules) (see Chapter 4). All PCI slots can be used
as masters. Only 5 V PCI modules can be operated.
The power supply of the expansion boards runs via the connection of the bus
module to the basic board. The -5 V voltage is not provided by the power supply
and is generated from the -12 V on the bus module using in-phase control.
The connection to the basic board is established by a gold-plated ’EISA’ type
two-part connector. All the necessary bus signals (ISA and PCI) are applied to this
connector. The following table shows the connector pin assignment.