Siemens SIMATIC Rack PC 840 - Page 182

Technical Specifications
B-4
SIMATIC Rack PC 840 Manual
A5E00104826-03
Ports
COM1 *
4
Serial port 1 (V.24 / TTY), 25 pin subminiature Cannon con-
nector
COM2 Serial port 2 (V.24), 9 pin subminiature Cannon connector
LPT1 Parallel port (standard, EPP and ECP mode)
Connection for printer with parallel port
VGA Connection for external monitor
Keyboard PS/2 keyboard connection
Mouse PS/2 mouse connection
USB 3 channels (2x internal, 1x external)
MPI/DP12 port, potentially isolated *
5
• Transfer rate
• Operating mode
• Physical port
• Memory address area
• Interrupts
9 pin subminiature Cannon socket
• 9.6 Kbps to 12 Mbps, configurable by SW
• potentially isolated*:
- data lines A,B
- control lines RTS AS, RTS_PG
- 5V supply voltage (max. 90 mA)
• connected to ground:
- shield of the DP12 connecting line
• RS485, potentially isolated*
• to be configured automatically
• to be configured automatically
Ethernet Ethernet port (RJ45), Controller Intel 82562
Function Indicators (LEDs)
SIMATIC Rack PC 840 FAN
TEMP
WATCHDOG
ETHERNET
PROFIBUS/MPI
HARDDISK
POWER
FD access
CD ROM access
* Optically isolated within the safety extra-low voltage circuit (SELV)
*
1
Restrictions for drives in the front drive holder:
When operating with stands the following values must not be exceeded: 0,019 mm from 10 to 58Hz
and 3 m/s2 from 58 to 500 Hz.
When fitting the device using telescopic rails, make sure that the device is free from mechanical distur-
bances.
*
2
Restrictions for drives in the front drive holder:
When operating with stands 30m/s2 must not be exceeded.
When fitting the device using telescopic rails, make sure that the device is free from mechanical distur-
bances. When using a CD-RW drive, the device should generally be free of mechanical disturbances
while burning.
*
3
When using a CD-RW drive, the device should generally be free of mechanical disturbances while bur-
ning.
*
4
The line current (TTY) is an optional product feature
*
5
Optional product feature