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HV ANSI Series Technical Reference Manual, MAN0340, Rev. A
vi
Product Selection Guide
The HV ANSI Series is a line of ASCII terminals 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:
HV
Transient Voltage Suppressor
TVS
RTV Seal
RTV
Cable
Blank = Modular Connector
PW = Permanent Wire
DE9 = DE9 Permanent Wire
Case Color
BK = Black
GY = Gray
YL = Yellow
Case Style
NSG = No Speaker Grill
LED
LED = LED Indicators
Power Supply
1 = 5V
2 = 7.5 to 12V
1
H = 9V to 28V
2
Interface
R2 = RS-232
R4 = RS-422
RT = CMOS/TTL
Keypad Type
Blank = Membrane
EK = Elastomeric
KL = Backlit Keypad
# Keys
20, 30, 40
Display Type
Blank= Twisted Nematic
N = Supertwist
NEL = Supertwist Backlit
T = Ext. Temp. Backlit
TEL = Ext. Temp. Supertwist Backlit
VFD = Vacuum Fluorescent Display
TVFD = Ext. Temp. VFD
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 9.0 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.
ANSI