Siemens SIMATIC NET PROFIBUS, Owner'S Manual, Page: 133 / 490

Passive Components for RS-485 Networks
4-35
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Technical Specifications
The following table shows the technical data of the various bus connectors:
Table 4-7 Technical Specifications of the IP 20-compliant Bus Connectors
Order numbers: 6ES7 972-
... 0BA11-0XA0
... 0BB11-0XA0
6ES7 972-
... 0BA40-0XA0
... 0BB40-0XA0
6ES7 972-
0BA30-0XA0
6GK1 500-
0EA02
PG socket 0BA11: no
0BB11: yes
0BA40: no
0BB40: yes
no no
Max. transmission
rate 12 Mbps 12 Mbps 1.5 Mbps 12 Mbps
Terminating resistor
and disconnect
function integrated integrated no integrated
Cable outlet vertical oblique 35
_
oblique 30
_
axial
Interfaces
S
to PROFIBUS
node
S
to PROFIBUS
LAN cable
9-pin sub-D male
connector
4 modular
terminals for wires
up to 1.5 mm
2
9-pin sub-D male
connector
4 modular
terminals for wires
up to 1.5 mm
2
9-pin sub-D male
connector
4 insulation
displacement
terminals for wires
0.644
"
0.04 mm
9-pin sub-D male
connector
4 modular
terminals for wires
up to 1.5 mm
2
Connectable
PROFIBUS cable
diameter 8
"
0.5 mm 8
"
0.5 mm 8
"
0.5 mm 8
"
0.5 mm
Power supply (must
be supplied by DTE) 4.75 to 5.25 V DC 4.75 to 5.25 V DC --- 4.75 to 5.25 V DC
Current consumption max. 5 mA max. 5 mA --- max. 5 mA
Permitted ambient
conditions
S
Operating
temperature
S
Transport/storage
temperature
S
Relative humidity
0
_
C to +60
_
C
-25
_
C to +80
_
C
max. 75 % at
+25
_
C
0
_
C to +60
_
C
-25
_
C to +80
_
C
max. 75 % at
+25
_
C
0
_
C to +60
_
C
-25
_
C to +80
_
C
max. 75 % at
+25
_
C
0
_
C to +55
_
C
-25
_
C to +70
_
C
max. 95 % at
+25
_
C
Dimensions (in mm) 15.8 54 34 16 54 38 15 58 34 15 39 57
Weight approx. 40 g approx. 40 g approx. 30 g approx. 100 g
Disconnect Function
The disconnect function means that the remaining LAN cable is disconnected from
the bus when the terminating resistor is activated. If the terminating resistor is
accidentally activated in the middle of the LAN cable, the error can be recognized
and localized immediately due to the nodes that are no longer accessible.