Siemens SIMATIC PG 720 P Manual page 59

Mother Board The mother board is the heart of the PG 720. Here, data are processed and
stored, and interfaces and device I/Os controlled and managed.
1
3
4
2
Figure 5-3 Mother Board
Components on The following components are located on the mother board of the PG 720:
the Mother Board
Table 5-1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PG 720 P Programming Device
C79000-G7076-C721-02
24
16 21 19
Components of the Mother Board
No.
PCMCIA slots
S5 submodule port
Memory card port
Loudspeaker
CPU on base with cooling unit
System memory, slot 0, slot 1, slot 2, slot 3
External VGA connection
COM2 serial port
TTY jumpers (X30)
COM1/TTY serial port
TTY receiver
TTY transmitter
MPI port
LPT1 parallel port
PS/2 mouse connection
Battery connector
Contrast
Keyboard and trackball connection
Floppy disk drive connection
Power supply connection (from DC converter)
IDE Winchester connector and CD-ROM
Voltage transformer for CPU, installed
Jumper on base of transformer
Clock setting (switch S1)
Connector for processor ventilator
Connector for switch
Connector for display unit
Connector for display
PG 720 Expansions
23 22 28 27
6 11 12 9 20
Function
26
25
7/8
5
10/14
15
17
18
13
5-5