Siemens Simatic 620 Owner's Manual page 156

Hardware Information
2.5" hard disks
CD ROM
LS240
TTY transmitter/
*
receiver
PS connection
for 3.5" hard
disk
PS connection
for CPU fan
PS connection
for device fan
Backup battery
* Optional product feature
Port to the Bus Unit
The Box PC has a bus unit with a PCI slot and a shared ISA /PCI slot. Expansion
cards can be installed to 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
the 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.
7-24
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 are operable
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, secondary
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
SIMATIC Box PC 620 Manual
A5E00131465-01