NM350 USER MANUAL
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N M 3 5 0
Additional information
Table 4-3:
Parameters of climatic and mechanical effects
Type of effect
Parameter name
Parameter
value
Document
Temperature change
(at relative humidity up to 80 %,
without moisture condensation)
Low temperature
- 40
С
GOST 28209-89 (IEC 68-
2-14-84)
High temperature
+
70
С
1)
Sinusoidal vibration
Range of frequencies
(Hz)
10...500
GOST 28203-89 (IEC 68-
2-6-82)
Acceleration, g
5
Single shocks
Peak acceleration, g
100
GOST 28213-89 (IEC 68-
2-27-87)
Multiple shocks
Peak acceleration, g
50
GOST 28215-89 (IEC 68-
2-29-87)
Number of shocks
1000
4.5
Malfunctions and troubleshooting methods
Table 4-4:
Typical malfunctions and troubleshooting methods
Malfunction
Troubleshooting options
Module failed to start and "PWR"
LED is off.
1. Check the power supply cable: polarity and
integrity.
2. Check the power supply voltage level.
Connected PoE device failed to start.
1. Make sure that the device is connected to NM350
port that supports PoE power supply: 1
– 4.
2. Check the cable connection accuracy: pin-out
and integrity.
No Ethernet connection.
1. Check the cable connection accuracy: pin-out
and integrity.
2. Make sure that the port of the device connected to
ports 5 or 6 of NM350, operates in the 1000BaseT
mode.
In case your problem is not described in this table or the suggested options failed to solve the
problem, please contact the device supplier for professional advice.
1)
NM350 module at the ambient temperature of +70
С allows connection of PoE devices with a total power
of no more than 30 W. Maximum permissible total power to all the ports under various temperature operating
conditions can be obtained from the diagram (see Fig. 2-4: Dependence of the maximum total load to all
ports on the ambient temperature conditions)
