SC4000 REFERENCE MANUAL
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All Reading Devices (except 6K/8K)
to Earth (default)
to GND
Floating
6K, 8K Family Scanners
The scanner chassis is
internally connected to GND
to Earth (default)
Figure 5 – Chassis Grounding
4.1.4 ID-NET/Host 1 Shield Jumper Settings
The Network shield (Shield) can be connected to Earth Ground (Earth) either directly or
through a filter circuit. If the jumper is left open, the network cable shield (Shield) is floating.
Filtered Earth
(default)
Earth
floating
Equivalent
Filter Circuit
Figure 6 - ID-NET/Host 1 Shield Jumper Settings
4.2 NETWORK BUS TERMINATION
4.2.1 ID-NET™ Termination
OFF ON
Figure 7 – ID-NET™ Termination Resistance Switch
The ID-NET™ termination resistance switch enables or disables the insertion of the bus
termination resistor for ID-NET™ network applications.
CAUTION
In ID-NET™ network applications the termination resistor must be enabled
ONLY on the first and last devices of the chain. On all the other devices this
resistor MUST NOT be enabled (OFF).
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