Management number LG-18Y504 Operating manual IT Controllers for Mini-excavator Model No. JRN-330K First Published on September 5, 2018 @Copyright Japan Radio Co., Ltd.
Change history Revision history Revision Date Letter September 5, 2018 First edition Revision Details 2/17 letter
Contents 1. 2. 3. 4. 5. Outline ......................................................................... 4 Features ........................................................................ 4 Equipment configuration ......................................................... 4 Function ........................................................................ 5 Product Specifications .......................................................... 8 5.1. General specification ........................................
1. Outline This document describes the function and performance of an IT controller for JRN-330K mini excavator (hereinafter referred to as "the present device"). This device is an IT controller equipped with GPS and 3G cellular communication function for mini excavators. 2. Features As an IT controller for mini excavators · Equipped with GPS function. Position, get current time from GPS. · Equipped with mobile communication function. SMS reception and mail transmission / Reception are performed.
4. Function It has the following control function. (1) Communication function with mail server. Mail transmission and reception are performed between this device and a mail server.
(8) Sleep control function a) When all the following three conditions are satisfied shift to sleep to reduce current consumption. 1) GPS positioning is not performed. (The application is not acquiring GPS information) 2) No response processing has been performed by receiving the command or by receiving it. 3) While the engine is stopped (the hour meter signal is OFF) b) To recover from sleep, perform immediately under any of the following conditions.
via serial. (15) Hardware protection function To avoid an internal temperature rising of this device, mail transmission shall be as follows. When a trigger for mail transmission occurs, if the temperature is equal to or higher than a certain temperature, the mail is not transmitted, and the mail is saved as non-transmitted mail in the nonvolatile memory. Maximum of 10 mail transmission processing (including retry due to communication error) shall be made.
5. Product Specifications 5.1. General specification Item No. 1 Power supply voltage 2 3 Battery pack Consumption current 4 Ambient 5 6 7 8 Dimensions Mass Case body Protective structure Specification / Performance DC+10～+32V （It can operate with voltage less than DC + 10 V when there is remaining battery capacity of built-in battery） Ni-MH rechargeable battery、500mAh/3.
5.3. GPS specification Item No. 1 GPS module 2 3 4 5 6 7 8 Reception method Reception frequency Output Positioning method Standalone Geodetic system Time UTC Receive sensitivity (N ote 1) Specification / Performance Communication module Cinterion PHS8-P built-in GPS module 30ch simultaneous L1 1575.42 MHz NMEA-0183 compatible (V2.3) Standalone GNSS WGS-84 UTC Cold start: -138 dBm or less 5.4. WCDMA communication specification Item Specification / Performance No.
5.5. Built-in battery specification Item Specification / Performance No. 1 Type name NBB-3300 2 Type Nickel-hydrogen secondary battery 3 Nominal voltage 3.6V (1.2V×3 cells) 4 Nominal capacity 500mAh 5.6. External connector specification No.
7. External interface specification 7.1. External connector Signal lines of the connector connected to the construction machine are shown. Table 7.1 IT side Terminal number 1 2 3 4 5 Signal line chart Pin name Power supply Earth Hour meter signal Remarks External power input 10V to 32V Ground Hour meter signal 0 V to 32 V Non-operation: Less than 4 V (typ), Operation: 4 V (typ) or more(Threshold 3.32 V (min) to 4.
8. Outline drawing Figure 8.1 shows the outline drawing. Tolerance unless otherwise specified External dimensions Above Body Label SIM Number label Figure 8.1 Outline Drawing 12/17 External Dimensional dimension tolerance tolerance of mounting Below 6 ±0.5 ±0.5 6 30 ±1 ±0.5 30 120 ±1.5 ±0.5 120 400 ±2.
9. Handling Precautions * In the text, "IT controller JRN - 330K" described in this specification is "this device" 9.1. Specification values Please be sure to follow the specifications of this device. Using more than the specified value can cause a malfunction. （１）Power supply voltage: Main unit (input voltage) It is the maximum voltage that can be applied between the power supply terminal and The grounding terminal (GND), and exceeding this voltage may cause fire, electric shock or failure.
（１１）In the unlikely event that foreign matter such as water or metal enters inside, please unplug the power cable and contact us. If used as it is, it may cause fire, electric shock or breakdown. （１２）Clean the surface to remove dust and dust, and wipe it with a clean cloth. （１３）This device may not be able to communicate due to communication carrier interference or radio environment due to the use of radio waves.
9.8. Others （１）Please note that we are not responsible for any defects or abnormalities that may have occurred as a result of misuse of the contents of this specification. （２）With regard to the equipment described in this specification, we may make changes to alternative parts to the extent that electric, mechanical and environmental resistance characteristics are not impaired.
10. Compliance with FCC and IC Rules and Regulations ・FCC This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference, including interference that may cause undesired operation. CAUTION: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
・FCC/IC RF exposure compliance 1) To comply with FCC/IC RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the antenna of this device and all persons. 2) This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
