CHAPTER 3 SPECIFICATIONS AND RELATED INFORMATION
22
MultiConnect
®
Dragonfly
TM
MTQ-EV3 Device Guide
MTQ-EV3-B02 (No Processor)
Radio
Protocol
Sleep Mode
Call Box
Connection No
Data (Amps)
(AVG) Measured
Current (Amps) at
Max Power
1
Peak TX
2
Amplitude
Current (Amps)
Total Inrush
Charge
3
Measured
in Millicoulombs
(mC)
5 Volts, USB
US
Cellular
800Mhz
0.024
N/A
0.658
0.748
3.78
US PCS
1900MHz
0.024
0.049
0.644
0.760
3.78
1
Maximum Power:
The continuous current during maximum data rate with the radio transmitter at
maximum power.
2
Peak TX:
The peak current during a CDMA connection transmitting data at max power.
3
Inrush Charge:
The total inrush charge at power on.
Waveforms
USB only, inrush current of 3.85mC with a duration of 40.7 ms
USB Cable Recommendations
If your device has a USB connector, to avoid enumeration or power issues:
Use a high-speed USB cable that is as short as possible.
Use a well-shielded cable with at least 24 AWG wire pair for power/ground and 28 AWG wire pair for data
lines.
If possible, use a USB port that connects directly to the motherboard rather than a USB port with added
cabling inside the computer chassis.
Use USB 3.0 ports if available. These ports are typically rated for more current.
You can order the USB cable through MultiTech. The part number is CA-USB-A-MICRO-B-3.
