QPRO Technical Data Sheet
Document 1137-0901, REV A
6
UARTs and
CAN bus ON
0.035
0.21
0.018
0.216
0.009
0.216
0.004
0.128
iQ + Bus
ON
UBATT
Relays ON
2.000
12.00
2.000
24.000
2.000
48.000
2.000
64.000
Maximum
rating on
relays
GND Relays
ON
2.000
12.00
2.000
24.000
2.000
48.000
2.000
64.000
Maximum
rating on
relays but
not part
of system
power.
GSM
External 3.3V
0.34
2.04
0.165
1.980
0.110
2.640
0.080
2.560
Maximum
rating
GSM
External 3.3V
0.098
0.59
0.048
0.576
0.023
0.552
0.017
0.544
Maximum
rating
GPS
0.025
0.15
0.013
0.156
0.027
0.648
0.021
0.672
GSM RX
0.065
0.39
0.032
0.384
0.010
0.240
0.008
0.240
4 Slot DL
GSM TX low
pwr
0.33
1.98
0.160
1.920
0.080
1.920
0.060
1.920
GPRS 4
slots
(Class
10)
GSM TX high
pwr
1.35
8.10
0.650
7.800
0.325
7.800
0.245
7.840
GPRS 4
slots
(Class
10)
IRIDIUM RX
0.168
1.01
0.085
1.020
0.042
1.008
0.031
0.992
IRIDIUM TX
N/A
N/A
0.950
11.400
0.470
11.280
0.350
11.200
8.33 mS
burst
GlobalStar
Idle
######
######
1.5E-06
#######
7.5E-07
######
5.6E-07
######
Between
TX burst
GlobalStar
TX
0.198
1.19
0.095
1.140
0.038
0.912
0.028
0.896
1.44 S
Burst
Note: All currents below are individual contributions and at 25°C ambient. Total current is the sum of each.
Items with burst or slot in the notes are the peak values.
* - Use of ORBCOMM and Iridium satellite network is not available when modem’s voltage drops below 10.5
VDC.
** - Relay current is 1A MAX at 25C, .5A MAX at 85C. Power usage depends on customer
application.
DC Input power to QUAKE QPRO modems is +6.0V to +32.0VDC. Supplied input voltages outside this
range will result in damage to the modem and void the warranty.
2.3.5 Power Calculation
Depending on the configuration of the modem, add the appropriate power. For example:
QPRO with GSM, GPS and ORBCOMM with no messages being sent:
Current Calculation:
0.045 A (Processor Only) + 0.020 A (GSM RX) + 0.010 A (GPS) + 0.035 A (ORBCOMM RX)
= 0.11 A or 110 mA
Power Calculation:
0.54 W (Processor Only) + 0.24 W (GSM RX) + 0.12 W (GPS) + 0.42 W (ORBCOMM RX)
= 0.11A * 12 V = 1.32 W
