RACOM MG102i, Operating Manual

Page: 14 / 175

Fig. 4.5: Screw terminal
Tab. 4.3: Pin assignment of screw terminal
signal pin description pin
Ground internally connected with casing ground. V
GND
1
Dual power input - not connected with pin 4: 12–48 VDC (–15%
+20%) = 10.2–57.6 VDC.
V+ (12–48 V=)
2
RS232 – RxD (receiving data) RxD 3
RS232 – TxD (transmitting data) TxD 4
RS232 – GND (ground) GND 5
Digital output. Dry contact relay. Normally open with MG102i without
powering.
DO1:
6
7
Digital output. Dry contact relay. Normally open with MG102i without
powering. See Section 7.2.7, “Digital I/O” for details.
DO2:
8
9
Digital input 1 See Section 7.2.7, “Digital I/O” DI1− 10
Digital input 1 DI1+ 11
Digital input 2 DI2− 12
Digital input 2 DI2+ 13
Tab. 4.4: Digital inputs levels
0 to 5.0 VDC logical level 0
7.2 to 40 VDC logical level 1
Note: Negative input voltage is not recognised.
Tab. 4.5: Digital outputs parameters
1 A Maximal continuous current
60 VDC, 42 VAC (Vrms) Maximal switching voltage
60 W Maximal switching capacity
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