Black Box IC108A, IC109C manual continued. DCE Jumper Settings, RS-232↔485/422 CONVERTERS, Function

RS-232↔485/422 CONVERTERS

Table 1 (continued). DCE Jumper Settings.
Function	Jumper Requirements
5. Enable RS-485 driver
a. RS-485 driver enabled by
RS-232 control leads
• by RTS	W15 in A-B position and
	W9 in 0-ms position
	W9 in 10-ms position
	W9 in 30-ms position
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

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