Siemens 620 appendix Port to the Bus Unit, Cd Rom

Hardware Information

2.5” hard disks	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
CD ROM	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
LS240	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
TTY transmitter/	internal	X70/71	Connection for TTY transmitter/receiver
receiver*			hybrid (physical interface)
PS connection	internal	X25	Power supply for 3.5” hard disk,
for 3.5” hard			4 pin, male connector
disk
PS connection	internal	X29	Power supply for CPU fan,
for CPU fan			3 pin, male connector
PS connection	internal	X28	Power supply for device fan,
for device fan			2 pin, male connector
Backup battery	internal	X24	Power supply for device fan,
			2 pin, male connector

*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	SIMATIC Box PC 620 Manual
	A5E00131465-01