GTM-203M-3GWA User
’
s Manual v1.0
- 2/35 -
2. Hardware Specifications
Item
GTM-203M-3GWA
GSM / GPRS Interface
Frequency Band
GSM 850/900/1800/1900 MHz
GPRS Connectivity
GPRS class 12; GPRS station class B
CSD
GSM max. 9.6 kb/s
UMTS max. 64 kb/s
Coding Schemes
CS 1, CS 2, CS 3, CS 4
3G Interface
Frequency Band
WCDMA 850/900/1900/2100 MHz
SMS
SMS
MT, MO, CB, Text, and PDU mode
Comm. Interface
COM Port
RxD, TxD, GND
COM Port Baud Rate
9600 bps ~ 115200 bps (default
:
115200 bps)
USB
USB 2.0 (high speed)
USB Driver Support
Windows XP/Vista/7/8, Linux
LED Indicators
Power
Red
3G/GSM
Green
Power
Protection
Power reverse polarity protection
Frame Ground Protection
ESD, Surge, EFT, Hi-Pot
Required Supply Voltage
+10 V
DC
~ +30 V
DC
Rated Current
30 ~ 15 mA / 10 ~ 30 V
DC
Reset Input
Input Type
Isolated, 3750 V
rms
On Voltage Level
+3.5 V
DC
~ +30V
DC
Off Voltage Level
+1 V
DC
max.
Input Impedance
3 kΩ, 0.25W
Mechanical
Casing
Metal
Dimensions (W x L x H)
28 mm x 78.5 mm x 100 mm
Installation
DIN-Rail
Environment
Operation Temperature
-25
℃
to 70
℃
Storage Temperature
-40
℃
to 80
℃
Humidity
5~90% RH, non-condensing
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