Cinterion
®
LTE Terminals Hardware Interface Description
4 Electrical and Environmental Characteristics
60
ELSxT_HID_v04 2018-09-04
Confidential / Preliminary
Page 48 of 102
4 Electrical and Environmental Characteristics
4.1 Absolute Maximum Ratings
Table 19: Absolute maximum ratings
Parameter Port / Description Min. Max. Unit
Supply voltage PLUS -40 57 V
Input voltage for on/off
control lines
RST_IN -5 30 V
RS-232 input voltage TXD0, DTR0, RTS0 -25 +25 V
GPIO connector pins input
voltage (incl. VCCref)
8-pin and 12-pin connectors
(if pins specified/configured as input pins)
-0.3 6 V
GPIO connector pins output
current
8-pin and 12-pin connectors
(if pins specified/configured as output pins)
0 50mA drawn
@each pin
1
1. Please note that if the VCCref pin is connected to the +5Vout pin, no more than 100mA should be drawn
by all pins. In this case it is no longer allowed to draw a maximum of 50mA for each pin.
--
Immunity against discharge
of static electricity
All interfaces (lines)
Contact discharge
Air discharge
-4
-8
+4
+8
kV
kV
Table 20: Operating supply voltage for LTE Terminals
Parameter Min Typ Max Unit
Supply voltage PLUS
measured at (6-pole) west-
ern jack plug (1 to 6)
81257V
Minimum supply voltage
PLUS measured at (6-pole)
western jack plug (1 to 6)
@any time,
incl. all ripple, drops and
temperature fluctuations
7.6 V
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