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J7, JPW2/3/4: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only.
COM2 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings of this connector.
COM2
RS-232
Function
1-3
2-4
J7 Jumper
7-8
Setting
9-10
(pin closed)
11-12
13-14
15-16
17-18
•
• 2
1
•
• 4
3
•
• 6
5
•
• 8
7
•
• 10
9
11 •
• 12
J7 Jumper
13 •
• 14
Illustration
15 •
• 16
17 •
• 18
19 •
• 20
21 •
• 22
23 •
• 24
25 •
• 26
27 •
• 28
J7
COM2
RS-232
Function
JPW2
OPEN
JPW3
OPEN
JPW4
OPEN
CI5TTV User's Manual
Chapter 2 Installations
RS-422
RS-485
3-5
3-5
4-6
4-6
23-25
19-20
27-28
21-22
23-25
24-26
27-28
•
• 2
• • 2
1
1
•
• 4
• • 4
3
3
•
• 6
• • 6
5
5
•
• 8
• • 8
7
7
•
• 10
• • 10
9
9
11 •
• 12
11 • • 12
13 •
• 14
13 • • 14
15 •
• 16
15 • • 16
17 •
• 18
17 • • 18
19 •
• 20
19 • • 20
21 •
• 22
21 • • 22
23 •
• 24
23 • • 24
25 •
• 26
25 • • 26
27 •
• 28
27 • • 28
J7
J7
RS-422
RS-485
SHORT
SHORT
SHORT
SHORT
SHORT
OPEN
17
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