Aventics PROFIBUS DP Instrucciones De Servicio página 66

66 AVENTICS | PROFIBUS DP | R402003657–BAL–001–AG
Assembly
BUS IN
X71
1 4
5
2 3
2 3
5
1 4
BUS OUT
X72
Fieldbus cable
Table 5: Assignment X71 (BUS IN) and X72 (BUS OUT), M12, B-
coded
Pin Signal
1 VP
2)
2 RxD/TxD-N
3 DGND
2)
4 RxD/TxD-P
5 Shield
Housing
1)
Output voltage from the bus coupler for external bus components (max.
25 mA).
2)
The assignment of the green and the red wire is not standardized. AVENTICS
recommends the assignment shown in the table.
Danger caused by incorrectly assembled or damaged
cables
The bus coupler may be damaged.
O
Only use shielded and tested cables.
Faulty wiring
Faulty wiring can lead to malfunctions as well as damage to
the network.
O
Unless otherwise stipulated, comply with the PROFIBUS
specifications.
O
Only a cable that meets the fieldbus specifications as well
as the connection speed and length requirements should
be used.
O
In order to assure both the protection class and the
required strain relief, the cable and plug assembly must
be done professionally and in accordance with the
assembly instructions.
O
Never connect the two fieldbus connections X71 and X72
to the same switch/hub.
Meaning
Supply voltage + (P5V)
Receive/send data N, data line A (green)
Reference potential to VP, 0V 1)
Receive/send data P, data line B (red)
Shield or function grounding
Shield or function grounding
NOTICE
1)