Additionally, two jumpers float or ground pins 5 and 9 of interface connector J40 for further configuration flexibility.

JUMPER

FLOAT

GND

SIGNAL

J29

1-2

2-3*

Signal GND

 

 

 

 

J30

1-2*

2-3

RI (pin 9)

 

 

 

 

* = DEFAULT CONFIGURATION

Two final jumpers,J500 and J700 , enable or disable the diagnostic output:

DIAGNOSTICS ENABLE/DISABLE (OBSOLETE)

JUMPER

ENABLED

DISABLED

 

 

 

J500

1-2*

2-3

 

 

 

J700

1-2*

2-3

 

 

 

* = DEFAULT CONFIGURATION

NV3128 RS-422A Machine-Control Routing Switch

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Image 36
Envision Peripherals NV3128 manual Jumper Enabled Disabled