Wireless Networks Inc. FPR-U20 ユーザーズマニュアル
Proprietary and Confidential
PRELIMINARY DRAFT
WIRELESS NETWORKS, INC SAN MATEO, CA
4.0 Specifications
4.1 General
Frequency Band
450 – 470 MHz
Regulations
Licensed under FCC parts 2 & 90
Complies with FCC part 15
Capacity
19.2kbps (9600 baud)
Modulation
4-level
FSK
Channel Bandwidth
12.5 kHz
Operation Mode
Half Duplex
4.2 Interfaces
Type
4 serial ports, RS-232/RS-485
Physical
RJ11
Type
Ethernet, 10BASE-T compatible
Physical
RJ45
Type
Coax connection
Physical
BNC-female
Type
Power
plug
Physical
2.5 mm jack
4.3 RF Transmitter and Receiver
Frequency Band
450 – 470 MHz
Output Power (max)
2 watts
Frequency Control
Synthesized,
±
1.5 ppm stability
4.4 Antenna
Frequency Range
430 – 470 MHz
Input
BNC-male
Gain
3.2
dBi
Length
17
inches
4.5 Power Requirements
Input AC Voltage
90 to 264 VAC, 47 – 63 Hz