Hi-flying HF2111A Руководство - Страница 8

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HF2111A GPRS DTU User Manual

2.2. HF2111A Interface

Function

External

Interface

LED

Indicator

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Figure 2.

HF2111A Interface

Name

DCPower 9~36V Input

RS485 A+ Connector

RS485 B- Connector

RS232 Rxd Connector

RS485/RS232

RS232 Txd Connector

Use either RS485 or RS232(Can not work

both)

SIM Card

Standard Sim Card Slot

Earth

Connect to Protect GND

Antenna

GPRS SMA Antenna

RS232

9-PIN RS232

Network Status LED(Function is reserved)

Off: No network connection

NET

2s On -> 2s Off: Network connection is OK

100ms On -> 100ms Off: Network is in

transferring

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Description