Datalogic Scanning Connection Box C-BOX 150 - Manual (Page 21)

INSTALLATION
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2.4.5 RS485 Bus Termination
ON
OFF
Figure 11 - Termination Resistance Switch
This switch enables or disables the insertion of the bus termination resistor for RS485
Half Duplex Multidrop applications.
CAUTION
In Multiplexer applications the termination resistor must be enabled
ONLY on the last device of the chain, the farthest away from the
Multiplexer (assuming the Multiplexer is the first device of the
chain). On all the other devices this resistor MUST NOT be enabled
(OFF position).
2.4.6 Powering C-BOX 150 From A Scanner
In order for C-BOX 150 to accept power from the scanner through the 25-pin
connector instead of the external power supply, a jumper can be positioned as
indicated in Figure 12.
This is useful, for example, in a typical Master Slaves layout with a Power Supply
Unit connected to the scanners (see paragraph 2.6) or to pass power to connected
accessories such as Encoder and Presence Sensor from DX8200A VAC models or
other scanner layouts. See the relative scanner Reference Manual for details.
EXTERNAL
PWR SUP.
(default)
SCANNER PWR
Figure 12 – C-BOX 150 Power Source Jumper
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