CHAPTER 3: Installation

Table 2 (continued). DTE Jumper Settings.

 

 

Function

Jumper Requirements

 

 

b. RS-485 driver enabled by data

W15 in B-C position and

• Disable timeout delay

W17

msec

 

A

70

 

B

7

 

C

2

 

D

0.7

 

E

0.15

 

 

c. RS-485 driver constantly enabled

W9 in ON position

 

 

6. Half-duplex turnaround delay

W8 in HALF position and

0-msec turnaround delay

W16 in position A

0.1-msec turnaround delay

W16 in position B

1-msec turnaround delay

W16 in position C

5-msec turnaround delay

W16 in position D

35-msec turnaround delay

W16 in position E

 

 

 

7. RS-485 interface terminated

 

 

or unterminated

 

 

 

 

• Terminated

S2 in TERM position

 

 

• Unterminated

S2 in UNTERM position

 

 

 

8. Normal or loopback operation

 

 

 

 

a. Normal mode

S1 in Normal position

 

 

b. Loopback mode

S2 in Loopback position

 

 

 

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Black Box IC108AE, IC109C, IC109AE, IC109A-R2, IC108C manual Installation