QUICK REFERENCE: USER-SELECTABLE OPTIONS

W16

Turnaround delay (When W8 is in the B-C [2 wire] position, this

 

is the time after the driver is disabled and before the receiver is

 

enabled.)

 

A

0 msec

 

B*

0.1 msec

 

C

1 msec

 

D

5 msec

 

E

35 msec

NOTE

If the Converter is configured Data Enabled (W15, position B-C) and 2- wire (W8 position B-C), then delays from W17 and W16 are cumulative.

S1

OUT*

Normal

 

 

 

IN

Loopback

 

S2

OFF*

RS-485 Receiver Unterminated

 

ON

RS-485 Receiver Terminated

S3

OFF*

Line Bias Off

 

 

ON

Line Bias On (The Carrier Detect light will come on.

 

 

Default is +5 volts.)

TB1

 

4-wire terminal block

 

 

1 - - - - - -

Rx - - - - -

B+

 

 

2 - - - - - -

Rx - - - - -

A-

 

 

3 - - - - - -

Tx - - - - -

B+

 

 

4 - - - - - -

Tx - - - - -

A-

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Black Box IC109C, IC109AE, IC109A-R2, IC108C, IC108AE manual Quick Reference USER-SELECTABLE Options