This user manual describes the FourStar ASI-TR03, an AS-Interface bus terminal designed to suppress signal reflection and extend network cable length up to…
The FourStar ASI-TR03 is a bus terminal designed for AS-Interface networks to optimize signal quality by suppressing reflections caused by flat cables. It supports AS-Interface Spec. V3.0 and extends the maximum transmission distance from 100 meters to 200 meters when installed at the end of a cable segment longer than 100 meters.
The device requires no external power, drawing less than 10mA directly from the bus voltage (DC 29.5V to 31.6V). It features a PWR indicator light that illuminates when the bus voltage exceeds 26V and is installed using standard DIN35mm rails with 5mm terminal spacing. This manual is written in Chinese.
| Interface Type | 5mm pitch terminals |
|---|---|
| Bus Voltage Range | DC29.5～31.6V |
| Power Consumption | <10mA |
| Protection Rating | IP20 |
| Operating Temperature | -40～+85℃ |
| Dimensions | 65mm × 51mm × 26mm |
It must be installed when the network segment cable length exceeds 100 meters.
It must be installed at the cable end furthest from the power source of that segment.
The light turns on when the bus voltage is greater than 26V, indicating sufficient power for devices.