TC65 Terminal Hardware Interface Description
Confidential / Released
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TC65 Terminal_HD_V02.000b
Page 48 of 65
19.02.2007
5
Electrical and Environmental Characteristics
Table 21: Absolute maximum ratings
Parameter
Port / Description
Min.
Max.
Unit
Supply voltage
POWER
-33
+33
V
Input voltage for Ignition
IGT_IN
-30
+30
V
Input voltage for
emergency off
EMERGOFF -25
+30
V
TXD0, DTR0, RTS0
-30
+30
V
RS-232 input voltage
range
RXD0, CTS0, DSR0, DCD0, RING0
(No DC Input)
-0.3 +0.3
1
V
Digital GPIO, SPI, I2C
GPIO1 – GPIO10, I2CCLK_SPICLK,
I2CDAT_SPIDO, SPICS, SPIDI,
I2CDAT_SPIDO
-0.3 +3.05
2
+0.3
1
V
Analog Input
ADC1_IN_P, ADC1_IN_N, ADC2_IN_P,
ADC2_IN_N
-6 +6
V
Backup battery
BACKUP
-4.7
+4.7
V
On/Off- line
ONOFF (No DC Input)
-0.3
+0.3
3
V
VDD supply voltage
VDD (No DC Input)
-0.3
+0.3
1
V
Microphone input line AC
voltage (pins to GND)
MICP1, MICN1
(No DC Input)
0.6
1
3.1
2,
4
Vpp
Earpiece voltage (idle, no
power)
EPP1, EPN1
(No DC Input)
-0.3 +0.3
1
V
Antenna Connector
No DC input
0
0
V
Immunity against air
discharge of static
electricity
All connectors (lines)
-8
+8
kV
Immunity against contact
discharge of static
electricity
All connectors (lines)
-4
+4
kV
Protection Class
IP40
(avoid exposing to liquid or moisture,
for example do not use it in a shower or
bath)
IP
40
Mechanical vibrations
amplitude
@ 5-200Hz
7.5
mm
Mechanical pulse-
acceleration
@ 18ms duration
30
G
1
For Power Down and Power Off.
2
For all operation modes.
3
Only Power Off.
4
A call is established or the AT command “AT^SNFM=,1” was executed.