![Ercogener GenLoc 54e Скачать руководство пользователя страница 78](http://html.mh-extra.com/html/ercogener/genloc-54e/genloc-54e_user-manual_2421804078.webp)
EG_GenLoc54e_1040_UG_002_UK
Page 78 / 86
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
The integrator has the responsibility to protect the input from electrical perturbations and to
respect the functioning parameters values.
8.2.10 Characteristics of the RS232 serial links
The characteristics are the same for the 2 serial links RS_232_0 and RS232_1
Table 64 : Characteristics of the UART
Characteristics
Symbols
Conditions
Min.
Typ.
Max.
Unit
Input Voltage
– Range
V
INPUT
Input Voltage
– Range
-25
+25
V
DC
Input Voltage
– Low
V
IL
Input Voltage
– Low
0.6
1.1
V
DC
Input Voltage
– High
V
IH
Input Voltage
– High
1.5
24
V
DC
Input Hysteresis
V
Hys
Input Hysteresis
0.5
V
DC
Input Resistance
R
in
Input Resistance
3
5
7
KΩ
Output Voltage
V
OUT
All transmitter outputs
loaded with 3 kΩ to
ground
±5
±5.4
V
DC
Transmitter Output
Resistance
R
OUT
300
50k
Ω
RS-232 Output Short-Circuit
Current
I
CC
±60
mA
8.2.11 RF GSM/DCS characteristics
The RF functioning complies with the ETSI GSM Standard recommendation.
The RF performances for the receiver and the transmitter are described below.
Table 65 : Parameters of the RF receiver and transmitter
Receiver
Sensitivity in 850/900
- 110 dBm, GPRS Coding Scheme 1 (CS1)
Sensitivity in 1800/1900
- 109 dBm, GPRS Coding Scheme 1 (CS1)
Transmitter
Maximum power (Power Class1 - 850/900) at room
temperature
33 dBm +/- 2 dB @ antenna connection
Maximum power (Power Class4 - 1800/1900) at
room temperature
30 dBm +/- 2 dB @ antenna connection