MT334-I
Rev. 0.3 08/04/2022
20 - 22
Document classified as: 2 - Company Confidential
Note1:
The capacity Ci that M-LOG PLUS presents externally is a function of the applied voltage Ui: the
considerations that led to these values are described in the technical note filed with the Notified Body
that issued the type certificate.
The following two tables show the Ci values as a function of the applied voltage:
Voltage
V
Version A
and T
Ci (μF)
8,7
450
9
225
10
45
11
27
12
16,2
13
10.2
14
7,66
15
6,3
Table 11.1-15
Table 11.1-16
11.2
Power supply lines characteristic parameters
External battery
–
A version
If you decide to power the modem section of M-LOG PLUS version A with an external battery pack, the
following characteristic parameters must be taken into consideration:
Parameter Uo
Io
Po
Ui
Ii
Pi
Co
Lo
Ci
Li
Value
NA
NA
NA
5,9V
3,9A
5,76W NA
NA
880 μF
5μH
Table 11.3-1
External power source
–
B version
M-LOG PLUS Version B can be powered from an external source via the SE12354 interface card
(optional) mounted in the slot that normally houses the GSM / GPRS modem.
The board allows power supply from an external source and at the same time makes an additional RS422
serial line available.
For interfacing, associated equipment is required to ensure galvanic isolation between the power
supply, the M-LOG PLUS communication circuits and the external correspondents.
Characteristic parameters of the power supply line:
Parameter Uo
Io
Po
Ui
Ii
Pi
Co
Lo Ci
Li
Value
NA
NA
NA
6V
650mA N.A.
NA
NA
165 μF
2,5
μH
Table 11.3-2
Voltage
V
Vee B
Version B
Ci (
μ
F)
6
85
7
25,8
8
8,5
9
3,4
10
1,86
11
1,18
12
0,77
13
0,53
14
0,4
15
0,31
