Black Box IC108A, Руководство пользователя

Страница: 22 / 33

21
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