6 • vacon
technical data
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
3
3.
BACNET FIELDBUS BOARD LAYOUT AND CONNECTIONS
Vacon BACnet option board is connected to the fieldbus through a 5-pin pluggable bus connector.
The communication with the control board of the frequency converter takes place through the
standard Vacon Interface Board Connector.
Figure 3-1. Vacon BACnet option board OPT-CJ
Signal
Connector
Description
NC*
1*
No connection
VP
2
Supply voltage – plus (5V)
RxD/TxD –N
3
Receive/Transmit data – A
RxD/TxD –P
4
Receive/Transmit data – B
DGND
5
Data ground (reference potential for VP)
*You can use this pin (1) to bypass the cable shield to the next slave
Table 3-1. OPT-CJ bus connector signals
X4
X1
Bus connector
Jumpers
Interface board connector
Grounding plate
1
2
3
4
5
