MBUSD
Wieland Electric GmbH | BA000917 | 01/2019 (Rev. B)
23
6
MBUSD
6.1
MBUSD description
The expansion port MBUSD is created as expansion port which enables to use of the next
hardware interface of Wieland routers for next signal processing. The expansion port
MBUS is equipment of a MASTER type. This interface is physically connected on RJ45
connector on appropriate router. The expansion port MBUSD is internal supplies from ap-
propriate router. The expansion port MBUSD is protected against inputs overload.
Expansion port MBUS is possible fitted into PORT1 and PORT2.
6.2
Expansion port connection
Panel socket RJ45.
Pin
no.
Signal
mark
Description
Direction
1
GND
Signal and supply ground
2
GND
Signal and supply ground
3
TxRx-
M-BUS B (-)
Input/Output
4
TxRx+
M-BUS A (+)
Input/Output
5
TxRx-
M-BUS B (-)
Input/Output
6
TxRx+
M-BUS A (+)
Input/Output
7
+12 V EXT External power supply
8
+12 V EXT External power supply
External supply is for converter M-BUS!
•
Because of galvanic separation, the converter must have an external power supply.
•
The signals 3 – 5 and 4 – 6 are linked inside of the modem.
NOTICE
Table 10: Connection
of MBUS connector
Figure 8: MBUS con-
nector
NOTICE
