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SWITCH INPUTS
7
EAR TH G R O UN D
Figure 17-3: Earth Ground Connection Terminals
There are two standard methods for providing earth grounding to HandPunch
units:
•
earth grounding all units (see page 13)
•
carrying an earth ground to each unit (see page 14)
Earth ground all units when there is a good earth ground source near each unit
and/or when there are very long cable runs between units.
Carry an earth ground to each unit when there are no earth grounds convenient
to the unit and the unit's power supply is floating.
Wiring
The following Tables provide the pin outs for the terminal strips on the Hand
Reader.
Examples
•
Table 14 provides the pin outs for TS-1: Power and Communication
Connections.
•
Table 15 provides the pin outs for TS-2: Input Connections.
C ARD
R EAD ER
INPUT
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
O UTPUTS
C O NN ECTI O N PINS
HandKey II Manual
Page 79
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