Assignment Of The Internal Ports On The Motherboard - Siemens SIMATIC Box PC 620 Manual

Hardware Information
Internal Serial Port COM2 (V.24), X26
This port is connected in parallel to the external COM2 port. Both ports can
therefore only be used alternatively. The assignment is executed in such a way
that a 1:1 connection to a 9 pin subminiature Cannon socket can be made when
using insulation piercing connecting devices. The maximum cable length is 100cm
with a data transfer rate of 9.6 kBaud.
Pin no.
1
2
3
4
5
6
7
8
9
10
8.7.3

Assignment of the Internal Ports on the Motherboard

Port
Memory
Processor
Bus extender
Power supply
Floppy
3.5" hard disk
2.5" hard disks
8-30
Signal
DCD Receiving signal level (E)
DSR Readiness for operation (E)
RxD Received data (E)
RTS Switch on transmitter (A)
TxD Transmitted data (S)
CTS Ready to transmit status (E)
DTR Terminal ready (S)
RI Incoming callf (E)
GND GND
P5V +5V power supply
Position Connector
internal X19, X20
internal X12
internal X1
internal X14
internal X5
internal X41
internal X4
Meaning
Description
2 SO-DIMM slot, 64Bit
Socket for MMC2 mobile processor
Socket for bus extender, assigned with ISA
and PCI bus signals
40 pin connector for DC signals
two drives are possible (82078 compatible)
360kB, 720kB, 1.2MB, 1.44MB
3F0h-3F7h, 370h-377h, can be disabled
IRQ 6, edge-triggered
26 pin, socket for flex-lead (notebook
connection)
170h-177h, 1F0h-1F7h, can be disabled
IRQ14, IRQ15, edge-triggered
40 pin, 2.54mm male connector
(3.5" HD, primary),
a maximum of two drives are operable
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
SIMATIC Box PC 620 Manual
C79000-G7076-C639-04