Doc. Title
Author
Page of Pages
ST310U OPERATION MANUAL
JH KIM
27 of 66
Concerning
Doc. No.
Rev.
Date
Features and How to set parameters
1.08
2017/7/13
Suntech International Ltd.
Confidential Document
Range : 30~100
Default: 70
VI_OFF_THRES
String
1/255G
Threshold value for Motion Virtual Ignition Off
Range : 3~30
Default : 5
VI_OFF_DELAY
String
Sec.
Delay time for Motion Virtual Ignition Off
Range : 3~999
Default : 10
VI_OFF_PERCENT
String
%
Percent for Motion virtual Ignition Off.
Range : 30 ~ 100
Default : 70
HBM_STT
String
0
’ or ‘1’
Type of report as follows.
0 : Not Increase H_METER/ BCK_VOLT/ MSG_TYPE in
“STT” String
1: Increase H_METER/ BCK_VOLT/ MSG_TYPE
in “STT”
String.
<example>
[command] ST300NPT;100850000;02;0;0;0;0;0;500;300;5;10;70;5;10;70;0
[response] ST300NPT;Res;100850000;010; 02;0;0;0;0;0;500;300;5;10;70;5;10;70;0
Jamming detection procedure
JAM_CHK_DIST and & JAM_CHK_TM are complementary to jamming detection to avoid false detection.
At least, we recommend that users of our device should utilize the
‘JAM_CHK_DIST’ for safety purposes.
If you use the 2 (two) functions, it can detect the following two cases of jamming:
*Case A: Jamming GPRS only.
Jamming detected ->JAM_CHK_DIST -> JAM_CHK_TM -> Triggered by JAM_DET mode.
*Case B: Jamming GPRS & GPS.
Jamming detected ->JAM_CHK_TM -> Triggered by JAM_DET mode.
JAM_CHK_DIST: if 0, skip this function.
JAM_CHK_TM: if 0, skip this function.
In case all of the complementary functions are disabled, device starts working according to the jamming mode
(JAM_DET mode) after detecting the jamming. In this case, a false detection might be made in an area having a
weak GSM connectivity or in an area having a strong radio.
4-11. Backup Battery Shutdown Parameter
HDR DEV_ID
VER
SDN_USE
SDN_THRES
● Definition
: When vehicle battery is disconnected and Backup battery voltage is low, device is turned off.
Field
Definitions
Unit
Remark
HDR
“ST300BAT”
Command type
DEV_ID
9 char.
Device ID
VER
“02”
Protocol Version
