Two Technologies TechTerm TT1R2, Техническое справочное руководство

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Document 15776(1.0.0.0) v
Product Selection Guide
The TechTerm is an ASCII terminal for use with computers, properly equipped instruments and
industrial machinery.
Standard configuration includes a membrane keypad, twisted nematic liquid crystal display and
modular interface connection, but other configurations are available. A suffix applied to the model
number identifies the configuration as shown below:
TT1
Transient Voltage Suppressor
TVS
RTV Seal
RTV
Cable
Blank = Modular Connector
PW = Permanent Wire
DE9 = DE9 Permanent Wire
Case Color
BK = Black
GY = Gray
BU = Blue
YL = Yellow
Case Style
NSG = No Speaker Grill
Power Supply
1 = 5V
2 = 7.5 to 12V
1
H = 9.5V to 28V
2
Interface
R2 = RS-232
R4 = RS-422
RT = CMOS/TTL
Keypad Type
Blank = Membrane
EK = Elastomeric
KL = Backlit Keypad
3
# Keys
15, 20, 30, 32, 45
Display Type
Blank = Twisted Nematic
N = Supertwist
NL = Supertwist LED Backlit
NEL = Supertwist Backlit
VFD = Vacuum Fluorescent Display
3
TVFD = Ext. Temp. VFD
3
Type
Blank = Line-Powered
B = Battery
1. A linear regulator (7805A) with a minimum input of 7.5 V and a maximum voltage of 28.0 V that dissipates one watt
of power thereby limiting maximum permissible input voltage according to current draw of terminal.
2. A switching type voltage regulator with a minimum input of 9.5 V and a maximum voltage of 28.0 V. Since input
voltage is not dependent on the terminal’s current draw, it is suitable for all options.
3. Not available on battery units