RI-CTL-MB2B-30 Datasheet, PDF (28/40 Pages) Texas Instruments – Series 2000 Reader System

Input/Reset
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Figure 2-17. Master/Slave Synchronization With Acknowledgment
Table 2-16. Master/Slave Synchronization With Acknowledgement
Jumper 12 (JP12)
Jumper 13 (JP13)
Jumper 14 (JP14)
UNIT(1)
Control Module MASTER
Closed
Closed ⁽¹⁾
Closed
UNIT(2) to UNIT(n-1)
Control Module SLAVES
Open
Open
Open
UNIT(n)
Control Module
SLAVE
Closed
Closed ⁽¹⁾
Closed
(1) _{If the distance between Unit(1) and Unit(n) is less than approximately 400 m, Jumper 13 (JP13) can be left out.}
2.9 Input/Reset
The Control Module provides two general purpose input lines. Each of these input lines is pulled up to
VCC2 (+ 5V) by a 100 kΩ resistor.
The Reset-terminal at this connector can be used to reset external circuitry or to reset the Control Module
externally. Figure 2-18 shows an example to reset the Control Module with an external push button.
28
Installation
Figure 2-18. Input/Reset Connection
SCBU044 (11-09-21-077) – January 2008
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