AirLink MP70 Hardware User Guide
Rev 4 Nov.16
26
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Digital Output/Open Drain
Digital output/open drain, for example to drive an external digital input, is only
available using Pin 4 on the power connector.
Figure 2-16: Digital Output/Open Drain
Step 6—Check the Router Operation
1.
When power is supplied to the AirLink MP70 router, it powers up automati-
cally, as indicated by the flashing LEDs. If it does not turn on, ensure that the:
·
Power connector is plugged in and supplying voltage greater than 9 V.
Note: Although the MP70 operates in the range 7 V–36 V, low voltage
standby mode is enabled by default, so in order to avoid the router
Table 2-8: Low Side Current Sink
Pull-up
State
Minimum
Typical
Maximum
Units
Comments
Off
On
250
500
1000
mA
I_Typical = 25°C
I_Min = 70°C
I_Max = -40°C
Off
Off
—
0
—
mA
Vin = 12
MP70 router
Protection
circuitry
V
in
External pull-up
On/Off
Off
Internal Pull-up
Resistor
Vcc
Pin 4 on the power connector
Table 2-9: Digital Output / Open Drain
Pull-up
State
Minimum
Typical
Maximum
Units
Comments
Off
Off
Open Circuit
—
—
—
—
Active
Low
—
—
0.5
V
5 mA,
≤
5 V