Siemens SIMATIC PC 670 Equipment Manual page 157

Release 04/02
2.5" hard disks
CD-ROM drive
LS240
TTY sender/recei-
ver
PS connection for
3.5" hard disk
PS connection for
CPU fan
PS connection for
device fan
Backup battery
Interface to wiring backplane
The computing unit has a wiring backplane with one PCI slot and one 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 265mm (175
mm for shared ISA/PCI modules). All PCI slots can be used as masters. Only 5V
PCI modules are operable.
The bus unit is executed as a purely passive module, i.e. there are only socket
contacts for the expansion cards and any necessary backup capacitors. The power
supply to the expansion cards is effected via the connection of the bus unit with the
basic board. The -5V voltage is not provided for in the power supply and is
produced from the -12V on the bus unit via in-phase voltage control.
Panel PC 670 Computing Unit, Equipment Manual
Internal X4 170h-177h, 1F0h-1F7h, can be disabled
IRQ14, IRQ15, edge-triggered
44 pin, 2mm male connector (2.5" HD, pri-
mary),
a maximum of two drives can be connec-
ted
Internal X3 170h-177h, 1F0h-1F7h, can be disabled
IRQ14, IRQ15, edge-triggered
44 pin, 2mm male connector (CD ROM,
secondary slave with connected LS120,
otherwise secondary master),
a maximum of one drive is operable
Internal X31 170h-177h, 1F0h-1F7h, can be disabled
IRQ14, IRQ15, edge-triggered
1x41 pin (Hirose DF9-41, LS240, secon-
dary master with connected drive),
a maximum of one drive is operable
Internal X70/71 Connection for TTY transmitter/receiver
hybrid (physical interface)
Internal X25 Power supply for 3.5" hard disk,
4 pin, male connector
Internal X29 Power supply for CPU fan,
3 pin, male connector
Internal X28 Power supply for device fan,
2 pin, male connector
Internal X24 Power supply for device fan,
2 pin, male connector
Hardware Information
7-25