Справочник Пользователя для Trimble Inc. WCSNM941
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SNM941 Wiring Harness
SNM941 Connected Site Gateway Installation Guide |
32
Earthworks, 8-pin connector pinouts
The following table describes the configuration of the pinouts.
Recommended DC electrical specifications
Pin
Function
1
Battery +
2
Power Ground
3
Ethernet RX+
4
Ethernet RX-
5
Ethernet TX-
6
Ethernet TX+
7
Keyswitch Power
8
N/A
Item
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage
V
BATT
7
24
32
Volts
Supply Current, Active Mode
1,2
1
Max tested at Vin = 7 V, cell on and idle, Wi-Fi on and Carrier being transmitted, relay driver sourcing 200 mA, Filtered Power
Out sourcing 200mA, USB sourcing 500mA.
2
Typical measurements taken with external voltage of 12.0 V.
I
BATT
190
233
1500
mA
Supply Current, Hibernate Mode
2
I
BATT
—
5
12
mA
Supply Current, Daily Average
2,3
3
Measurement calculated based on average current consumption over a 24 hour period multiplied by 24 hours.
I
BATT
—
600
—
mA-h
Pulse Input Voltage High
4
4
Typical at 14V, 2 EIA/TIA-232-F Compliant, 3 EIA/TIA-485-B Compliant.
V
RTH
85
%V
BATT
Pulse Input Voltage Low
V
RTL
55
%V
BATT
Ignition High Voltage
V
IGIH
80
—
—
%V
BATT
Ignition Low Voltage (including open circuit)
V
IGIL
—
V
IGI
H
-1
V
Ignition Input Pull-down Resistance
R
IGN
7
10
kΩ
Digital Switch To Ground Input Voltage High
V
DIH
2.5
V
Digital Switch To Ground Input Voltage
V
DIL
1.0
V
Digital Switch To Battery Input Voltage High
5
5
This measurement applies only if the PulseIn-2 input is configured as a digital input.
V
SBIH
85
%V
BATT
Digital Switch To Battery Input Voltage Low
5,6
6
This input can also be left floating to represent an input low signal.
V
SBIL
55
%V
BATT
Analog Input Voltage
V
ANALOG
0
100
%V
BATT
DRAFT