User's Guide

ThingMagic M3e User Guide
43
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Power Modes
The Power Mode setting (set in /reader/powerMode) allows the user to trade off increased RF operation
startup time for additional power savings.
The details of the amount of power consumed in each mode is shown in the table under Idle DC Power
Consumption. The behavior of each mode and impact on RF command latency is as follows:
• PowerMode.NORMAL - Tag Read
• PowerMode.IDLE -
• PowerMode.SLEEP – This mode essentially shuts down the digital and analog boards, except to power
the bare minimum logic required to wake the processor. This mode may add up to 20 ms. of delay from
idle to RF on when initiating an RF operation.
NOTE: See additional latency specifications under Event Response Times
.
RFID
RF Frequency:
HF: 13.56 MHz
LF: 125 kHz and 134.2 kHz
2
Supported Transponders
1
HF: ISO 15693, ISO 14443A/B
LF: (read only) 125 kHz
Antenna:
HF: Tuned for nominal 1 µH nominal differentially driven loop antenna
LF:
Compatible with a differentially driven coil antenna with a nominal
inductance of 505 µH
Read Range:
LF: up to 5 cm (2.0”, Antenna & Tag dependent)
HF:up to 5 cm (2.0”, Antenna & Tag dependent)
Physical
Dimensions:
26 mm x 22 mm x 3 mm
Mounting:
Solder down (SMT)
User Interface and Software
Control/Data Interface:
UART (TTL), I2C, SPI
(I2C and SPI in future release)
ResetN (Shutdown) line
SDK/API:
ThingMagic Mercury API
GPIO
4 bi-directional TTL
Electrical
DC Power Requirements
Voltage: 3.0- 5.5 VDC
Current: 0.3 A typical at 5.0 V when reading; idle and sleep modes supported
Safety, Regulatory and
Environmental Compliance:
FCC Class B, Industrie Canada (IC), RED 2014/53/EU, CE, ROHS, REACH, WEEE
Environmental
Operating Temp.:
-40° to 65°C at mounting surface
Relative Humidity:
95% RH non-condensing
6 Specifications