MGate 4101-MB-PBS
Hardware
3-3
Pin Assignments
Modbus P1 Pin Assignment
The MGate 4101-MB-PBS series use DB9 (male) serial port to connect to Modbus devices.
Pin
RS-232
RS-422/
RS-485 (4W)
RS-485 (2W)
1
DCD
TxD-(A)
---
2
RXD
TxD+(B)
---
3
TXD
RxD+(B)
Data+(B)
4
DTR
RxD-(A)
Data-(A)
5
GND
GND
GND
6
DSR
---
---
7
RTS
---
---
8
CTS
---
---
9
---
---
---
PROFIBUS P2 Pin Assignment
The MGate 4101-MB-PBS series use DB9 (female) serial port to connect to PROFIBUS devices.
PIN Signal Name
1
N.C.
2
N.C.
3
PROFIBUS D+
4
RTS
5
Signal common
6
5V
7
N.C.
8
PROFIBUS D-
9
N.C.
Console (RS-232) Pin Assignment
The MGate 4101-MB-PBS series use RJ45 serial port to connect to PC to configure device.
PIN
RS-232
1
DTR
2
RTS
3
GND
4
TXD
5
RXD
6
DCD
7
CTS
8
DTR
Mounting the Unit
The unit can be mounted on the wall or mounted on a DIN-Rail. The MGate 4101-MB-PBS/4101I-MB-PBS series
is designed to be attached to a DIN-Rail or mounted on a wall. For DIN-Rail mounting, push down the spring
and properly attach it to the DIN-Rail until it “snaps” into place. For wall mounting, install the wall mount kit
(optional) first, and then screw the device onto the wall. The following figure illustrates the two mounting
options:
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