Measurement-computing Extender488 User Manual download pdf (Page 14)

Section 2 Getting Started

Extender488 Data Format Selection

DOT

Switch

Side

View

OPEN

1234

8 data Bits

OPEN

1234

7 data Bits

Note: Factory default is 8 data bits.

2.2.3 Extender488 Serial Port Cabling

The

Extender488

is shipped from the factory for RS-422 transmission medium, which

prescribes differential receivers for high noise immunity. T o insure signal integrity, only use

shielded cable for the serial port connections. If you are not using a cable provided by the factory,

below is the appropriate connections for proper operation.

Signal Pin # SignalPin #

Receive Data -

Receive Data +

Ground (shield)

Transmit Data -

Transmit Data +

Transmit Data -

Ground (shield)

Receive Data +

Receive Data -

Local Extender Remote Extender

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Measurement-computing Extender488 User Manual Page 14