CHAPTER 3: Installation and Configuration

6.Set the DIP switch(es) as appropriate for your application. Refer to Table 3-1 and Figure 3-7below, and keep in mind that OFF = UP and ON = DOWN.

Table 3-1. Possible Settings for Switches S2 and S3

All 25 leads of the Local/Remote Electronic Switch’s DB25 connectors are straight- through and are isolated from one another. In RS-232 and DB25 parallel applications, we recommend that you use DIP switches S2 and S3 to make a “common” ground connection; this will help eliminate intermittent noise problems.

Recommended Settings for RS-232 Applications:

 

S2

S3

 

Model(s)

Pos. 1

Pos. 2

Pos. 1

Pos. 2

Connection(s) Made

SW980/982 units

ON

OFF

N/A

N/A

Port C Pin 7 to

 

(down)

(up)

 

 

Switch ground

 

 

 

 

 

 

SW981 units

ON

ON

OFF

OFF

Ports AA and BB Pin 7

 

(down)

(down)

(up)

(up)

to Switch ground

 

 

 

 

 

 

Recommended Settings for DB25 Parallel Applications:

 

 

 

 

 

 

 

S2

S3

 

Model(s)

Pos. 1

Pos. 2

Pos. 1

Pos. 2

Connection(s) Made

SW980/982 units

OFF

ON

N/A

N/A

Port C Pin 18 to

 

(up)

(down)

 

 

Switch ground

 

 

 

 

 

 

SW981 units

OFF

OFF

ON

ON

Ports AA and BB Pin 18

 

(up)

(up)

(down)

(down)

to Switch ground

 

 

 

 

 

 

Recommended Settings for Other Applications:

All models—Set all positions of switches S2 [and S3] to OFF (up).

SERIAL PARALLEL

(S2)

ON 1 2

(S2)

ON 1 2

SERIAL

(S3)

ON 1 2

PARALLEL

Figure 3-7. DIP switch S2 of the SW980 and SW982 models (left)

and DIP switches S2 and S3 of the SW981 models (right).

15

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Image 16
Black Box SW982AE, SW980AE, SW981AE manual Serial Parallel

SW981AE, SW980AE, SW980A, SW981A, SW982A specifications

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