Smart Grid Business
AMI (LTE) Modem
High speed remote reading modem collects reading data from maternal machine and subsidiary machine interfaces and transmits the collected data to the upper system of ADCS via LTE network.
Major specifications
High – Performance 32bit ARM®- based Cortex® - M4 Core
Maximum operating speed of 120MHz
Internal 1MB of Flash and 128KB of SRAM
Power Part
Input : AC85 ~ 264V, 50/60Hz
Maximum Power : 10 Watts
Battery(Lithium Ion Rechargeable) : Capacity (330mAh), Temperature Range(-40 to +85 °C)
LTE Module
Frequency : 1800 MHz (Band 3), 850 MHz (Band 5)
Maximum Output Power : 23dBm
Minimum Sensitivity Level : < -96.3 dBm
Interface : USART
External Interface Part
Debug Interface : RS232( TXD,RXD,GND), Baud rate 115200bps
Maternal machine interface: RS422, 4000-Vpeak Isolation, RJ45 Connector
Subsidiary machine interface: RS485, 4000-Vpeak Isolation, RJ11 Connector
Indicator(LED)
Power: Main power (ON/OFF)
SI1: Transmit/receive maternal machine interface data (flash)
SI2: Transmit/receive subsidiary machine interface data (Flash)
Status LTE: Status of LTE interface (ON, flash, OFF)
Status CPU: Status of CPU (ON, flash, OFF)
Watchdog function
Environmental variable setting function: Server setting, debug port setting
Time setting: LTE network setting, server setting, debug port setting
System reset: Reset by server (S/W, H/W), reset by push button
Power monitoring function: Monitor main power ON/OFF state and transmit status information
Maternal machine interface: Transmit push data
Subsidiary machine interface: Collect and transmit measuring meter information, collect and transmit data from push setup
Bypass mode: Provide bypass function between meters
FW update function: Update from server, update by debug port
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