User Instructions

Instruction on Type 46 Answering Machine and Type 554 Receiver
11
Display
It can display whether the charging is overcurrent, the cause of the fault,
and the version number.
Anti-static rating
4KV
Operating
temperature
-20 ℃ to 80 ℃
Storage
temperature
-10℃ to +60℃
Working current
Answer mode current (5V) <260mA, charging mode current (15V) <3.2A
Communication
rate
2Mbps
Signal
modulation
method
GFSK
Frequency
2.403-2.477GHz & 13.56MHz
Sensing range
The effective range of interactive answers is no less than 15 meters.
data transmission
Data transmission efficiency is in the millisecond level, supporting data
retransmission mechanism to ensure 100% success
6 Notes
1. Type 554 receivers are equipped with type 46 answering machine charging seat, which is
designed with data transmission and power supply separation. USB cable must be connected
to the computer when using, but if you do not consider charging type 46 answering machine at
the same time, you do not need to connect the external power adapter.
2. High-speed USB HID interface is adapted in Type 554 receivers, and it does not need not install
drivers under Windows operating system and the receiver can be used after plugging.
3. The height of type 554 receiver should not be less than 1.2 meters; there should not be objects
stacked in the front; any objects should be avoided in the visible range between students and
students, and the receiver should be facing the students as shown in the figure.