TransCore Amtech IT2200, Installation Maintenance And Service Manual

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IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide
3-22
Figure 3-11 IT2235 Tag Display Features
The IT2235 Tag is suitable for mounting inside a vehicle and operates from the
interior of any vehicle type. The IT2235 Tag has read/write capability and the same 16
pages of random access memory (RAM) as those described in the IT2221 section.
The IT2235 Tag is capable of displaying a variety of messages on the alphanumeric
LCD with additional signals provided through audible tones and lights. The light,
tone, LCD indications, and a subset of the tag messages are provided in the tables
shown in this section.
The character height of 5 mm (0.2 in) provides ample viewing detail from
approximately 0.9 m (3 ft) or less from the display. To provide sufficient readability in
all light conditions, backlighting is supplied and is activated while a message displays.
The IT2235 Tag has a pushbutton that provides a method of cycling through the
last-sent message and the last-reported patron account balance. The pushbutton is in
compliance with the environmental requirements of the tag. Because the LCD
displays a message when the button is pressed, backlighting will also be activated.
Each push of the button causes the next condition code to display, with a short beep
(100-ms
±
10% duration) to confirm key press, until all of the conditions are cycled
through. The balance will then display at the end of all other stored conditions or LCD
messages. This cycle repeats until the tag times out (four seconds) and goes into idle
mode. At a minimum, the balance will be displayed upon button push, and nothing
else cycles on subsequent pushes. At a maximum, eight conditions can be cycled by
subsequent pushes. RF commands always have priority over the display of any LED,
LCD, or audio tones.
The IT2235 Tag has LED-type lights to provide visual alarms and messages in the
form of on/off or flashing signals. Three LEDs will accommodate red, yellow, and
green signals in a variety of sequences (Table 3-3).