
EG_GenLoc41e_1055_UG_003_UK
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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCOGENER reserves the right to make any modifications.
Dct_427_02
7 FUNCTIONAL DESCRIPTION ..................................................................................................................... 36
7.1
A
RCHITECTURE
............................................................................................................................................ 36
7.2
P
OWER SUPPLY
........................................................................................................................................... 36
7.2.1 General presentation ..................................................................................................................... 36
7.2.2 Internal battery option .................................................................................................................... 37
7.2.2.1 Presentation of internal battery option .................................................................................... 37
7.2.2.2 Specifications of the internal battery option ............................................................................ 37
7.2.2.3 Charge voltage and supply voltage ........................................................................................ 38
7.2.2.4 Indication of presence/absence of the external power supply ............................................... 38
7.2.2.5 Instruction and restrictions of use ........................................................................................... 39
7.2.3 Protections of the power supply ..................................................................................................... 39
7.3
RS232
SERIAL LINK
...................................................................................................................................... 39
7.3.1 General Presentation ..................................................................................................................... 39
7.3.2 Pins description .............................................................................................................................. 40
7.3.4 3.8V .................................................................................................................................. 41
7.4
I
NPUTS
/O
UTPUTS FUNCTIONING
.................................................................................................................... 42
7.5
BOOT ......................................................................................................................................................... 43
7.6
RESET ....................................................................................................................................................... 43
7.6.1 General presentation ..................................................................................................................... 43
7.6.2 RESET sequence .......................................................................................................................... 43
7.7
W
ATCH
D
OG
................................................................................................................................................. 44
7.8
A
UDIO
......................................................................................................................................................... 44
7.8.1 Microphone inputs .......................................................................................................................... 45
7.8.2 Loud-speaker outputs (Speaker) ................................................................................................... 45
7.8.3 Buzzer outputs ............................................................................................................................... 45
7.9
GPS
MODULE
.............................................................................................................................................. 46
7.10
D
IRECT
GPS
MODE
(A
NALOG
S
WITCH
) ....................................................................................................... 46
7.11
I
NTERNAL PROCESSOR
............................................................................................................................... 47
7.11.1 EGM presentation ........................................................................................................................ 47
7.11.2 EGM Architecture ......................................................................................................................... 47
8 TECHNICAL CHARACTERISTICS ............................................................................................................. 48
8.1
M
ECHANICAL CHARACTERISTICS
................................................................................................................... 48
8.2
E
LECTRICAL CHARACTERISTICS
..................................................................................................................... 49
8.2.1 consumption ................................................................................................................................... 49
8.2.2 Max consumption ........................................................................................................................... 52
8.2.3 Audio interface ............................................................................................................................... 52
8.2.3.1 Microphone ............................................................................................................................. 53
8.2.3.2 Loudspeaker ........................................................................................................................... 54
8.2.3.3 Buzzer ..................................................................................................................................... 55
8.2.4 Inputs/Output ................................................................................................................................. 56
8.2.4.1 Opto-coupled Inputs (I1, I2, I3) ............................................................................................... 56
8.2.4.2
Open collector
output (O1) ..................................................................................................... 57
8.2.4.3 Analog input - ANA1 (0 - 10V) on INPUT2 ............................................................................. 58
8.2.4.4 Analog Input - ANA2 (0 - 10V) on SPKN ................................................................................ 58
8.2.4.5 Input/Output (0
– 3.3 V) direct on INPUT2, INPUT3 .............................................................. 59
8.2.4.6 Bus One Wire (0 - 3.3V) on INPUT3 ...................................................................................... 60
8.2.4.7 Bus One Wire (0 - 3.3V) multi-salves Dallas on INPUT3 ....................................................... 61
8.2.5 SIM interface .................................................................................................................................. 62
8.2.6 RESET signal ................................................................................................................................. 62
8.2.7 RF GSM/DCS characteristics ........................................................................................................ 62
8.2.7.1 RF functioning......................................................................................................................... 62
8.2.7.2 GSM external antenna ............................................................................................................ 63
8.2.8 GPS characteristics ....................................................................................................................... 63
8.2.8.1 GPS functioning ...................................................................................................................... 63
8.2.8.2 GPS external antenna ............................................................................................................ 64
8.2.8.3 Installation of the GPS external antenna ................................................................................ 64
8.2.9 Characteristics of the accelerometer ............................................................................................. 65
8.2.10 Characteristics of the serial link (UART) ...................................................................................... 65
8.2.11 ON/OFF commande of the power supply .................................................................................... 66
8.2.12 Bus I2C
(Option)
.......................................................................................................................... 67
8.3
E
NVIRONMENTAL CHARACTERISTICS
.............................................................................................................. 68
8.4
S
TANDARDS
/C
ONFORMITIES
......................................................................................................................... 68