OGi Modem - Hardware Guide
T401, Version .15 16 © ORBCOMM Proprietary
Parameter
Value
Packed/Remote Antenna
RF Connector
SMA female
3.3 RF Connection Specifications
The table below lists the specification for the RF present on the RF connector.
Parameter
Minimum
Typical
Maximum
Units
RF Output
30.5
31.5
32.5
dBm
3.4 Power
The modem has various power pins as shown in Table 2. Power input must always be
present on all power pins.
Parameter
Minimum
Maximum
Units
MAIN_POWER
5
15
VDC
3.4.1 Average Power Consumption
When the modem is on, its default and steady state is satellite communications receive
current, unless it is transmitting or acquiring a GPS fix.
Table 3 shows power averages, at room temperature (22°C), taken from startup to
registration, for three MAIN__POWER voltage.
Table 3
Typical Power Consumption (current)
Parameter
Current
@ 5 VDC
@ 8 VDC
@ 12 VDC
GPS Fix
150 mA
100 mA
70 mA
Satellite communications receive
170 mA
110 mA
80 mA
Transmit
2000 mA
1050 mA
750 mA
3.4.2 Inrush Current
The modem's inrush specifications for MAIN_POWER are shown in the tables below.
Typical Inrush Current on MAIN_POWER at 5 V
Amplitude (mA)
Period (µs)
Charge (µC)
Power Up
500
4000
3000
GPS Power Up
150
500
50
Receive Power Up
200
160
100
Transmit Power Up
3000
3700
3000
