User's Manual

SPECIFICATION REV

497-0430074 A

7 OF 22

3. Requirements

3.1 Functional Requirements

3.1.1. General

1. The RBA shall consist of a ten button Radio Frequency (RF) transmitter device designed to send

commands to RealPrice electronic shelf labels (ESL).

2. The RBA shall communicate with ESLs using the High Signal Input Communication Mode as

specified in 230-0415412.

3.1.2. Operation

3.1.2.1 Single-Shot Mode

1. Each key press lasting between 0.5 and 1.873 seconds shall result in a “single-shot” mode operation

as described below:

(a) Program the 4

Sequence Register with 128 bits of information. Only one

display register shall be programmed with FFh; all others shall be

programmed with 00h. The display register programmed with FFh is

dependent on which button(s) is pressed per the following table:

Button Display Register

1 16

2 15

3 14

4 13

5 12

6 11

7 10

8 9

9 8

Alt followed by 1 1

Alt followed by 2 2

Alt followed by 3 3

Alt followed by 4 4

Alt followed by 5 5

Alt followed by 6 6

Alt followed by 7 7

(b) Select the 4

Sequence Register for display.