Schlage PIB300 User Manual page 281

Grounding
Terminal 1 and the center pin of jack J12 are connected together. Terminal 2 and
NOTE
the sleeve of jack J12 are connected together.
Use any one of the following ground terminals to make the earth ground
NOTE
connection: 8, 10, 12, 14, 18, 20, 22, 24, or 26. Do NOT use terminal 2 to
establish the earth ground connection; terminal 2 is not directly connected to
ground.
Figure 13-2: Earth Ground Connection Terminals
There are two standard methods for providing earth grounding to HandPunch
units:
• earth grounding all units (see 15)
• carrying an earth ground to each unit (see 16)
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.
SWITCH INPUTS
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
EARTH GROUND
CARD
READER
OUTPUTS
INPUT
CONNECTION PINS
HandPunch 3000/4000 Manual
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