Functional Description
20NM50-00 E2
2016-05-17
Page 53
4.6
Discrete I/O
The high-end version of the NM50 features one discrete I/O interface at the front panel.
The discrete I/O interface provides one isolated general purpose input and one isolated
general purpose output. In addition, the NM50 has one dedicated W_Disable input which
can be used to disable radio operation. All discrete I/Os use an externally supplied
reference voltage ranging from 0 V to 154 V.
Connector types:
6-pin (2 rows) 3.5 mm with ejector,
e. g. Phoenix DMC 1,5/ 3-G1F-3,5-LR P20THR.
Mating connector:
Spring cage plug component
e.g. Phoenix DFMC 1,5/ 3-ST-3,5-LR
4.6.1
Discrete Input
The NM50 supports an isolated digital input. The input works within the voltage range of
0 V to 154 V and is independent of the power supply input voltage. The input switching
level is 40% (±5%).
The required input currents are:
High is > 5mA
Low shall be < 1mA
Please see
Chapter 1.2 External Interfaces on page 17
for the position of the discrete I/
O connector.
1
Vref_BIN
2
GDN_BIN
3
IN_P
4
W_Disable_P
5
OUT_P
6
OUT_N
Signal
Direction
Function
GND_BIN
in
Reference ground
IN_P/OUT_P/N
in/out
Input/output signals
Vref_BIN
in
Input reference voltage
W_Disable_P
out
Wireless disable
See
Figure 25, Switching behavior on page 54
.
1
2
5
6
