User's Manual

Title:
CT103 RF Uplink &RS485 downlink Repeater User Manual
DOC No.:
Rev.:
1.3
Page:
6 of14
Copyright Kaifa – Reproduction and communication of this document is strictly prohibited unless specifically
authorized in writing by Kaifa.
1.2 Features List
Nominal Voltage
230V
Voltage range
AC(80%Un to 120%Un)
Quiescent Power Consumption
≤3 W
Quiescent Consumption Current
<20uA
Degree of Water Protection
IP51
Degree of Insulation Protection
II 级
Communicate mode
Transparent transmission
Communicate with Concentrator
Modulation：Lora
Frequency ：915.25M~917.75M
TX power：≤20dbm
RX sensitivity：≤-119dbm（@SF=8，BW=500KHz，Data
rate=12500bps）
6 dB BW：≥500KHz
Communicate with Repeater
RS485(9600bps)
Data retention
20 years (minimum) in case of power failure.
Annual failure rate<0.5%
Battery
Replaceable 3.6V/1200mAh lithium battery
Environmental
Repeater install in Meter Box, the Meter Box is mounted
outdoors
Can resist external electromagnetic attack.
Operating temperature range: +10℃~ +85℃(in Meter Box)
Storage and transport temperature range: -45℃~ +85℃
Relative Humidity: 75%~100%
Certification
ERC
Reference standard
Comply with relevant standards requirements for ISM
wireless device in FCC,NTC
Special Technological requirements
ROHS
1. Seal cap
2. RF communication LED
3. Power LED
4. Seal
5. External battery
6. Repeater cover sealing screw
7. Meter Box open detect switch
8. RS485 port
9. SPD detection port
10. Terminal screw
11. Hook