Siemens PC 670 manual Interface to wiring backplane

Release 04/02 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 can be connec-
			ted
CD-ROM drive	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, secon-
			dary master with connected drive),
			a maximum of one drive is operable
TTY sender/recei-	Internal	X70/71	Connection for TTY transmitter/receiver
ver			hybrid (physical interface)
PS connection for	Internal	X25	Power supply for 3.5” hard disk,
3.5” hard disk			4 pin, male connector
PS connection for	Internal	X29	Power supply for CPU fan,
CPU fan			3 pin, male connector
PS connection for	Internal	X28	Power supply for device fan,
device fan			2 pin, male connector
Backup battery	Internal	X24	Power supply for device fan,
			2 pin, male connector

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

mmfor 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 7-25