No
. 96-1886-01E
Rev
.
1.1
GTECH Aircon Radio (Model GWT154)
PAGE
15
OF
72
Parameter
Conditions
Storage
Temperature
‐
40°C
to
+80°C
Storage
Temperature
rate
of
change
20°C/minute
maximum
Storage
Humidity
10%
to
90%
RH,
non
‐
condensing
Table 7 - Environmental Requirements
3.7
Host
Board
Electrical
Characteristics
Parameter
Min
Typical
Max
Unit
Input
Voltage
4
16
Volts
Output
Current
800
mA
Output
Voltage
3
3.3
3.6
Volts
Table 8 - Power Supply
Parameter
Min
Typical
Max
Unit
Serial
Baud
Rate
2.4
19.2
230.4
kbps
Input
Supply
Power
5
12
Volts
Input
Supply
Current
300
mA
Table 9 - RS-485 Serial Bus
Parameter
Min
Typical
Max
Unit
Serial
Baud
Rate
2.4
19.2
230.4
kbps
Input
Supply
Power
5
12
Volts
Input
Supply
Current
300
mA
Table 10 - USB Interface – Fully compliant with USB 2.0 specification
3.8
GWT154
Recommended
Configurations
The following drawings identify typical GTECH installation configurations.
1.
Installation of an existing RS485 peripheral into a legacy terminal.