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Roving Networks FIREFLY RN-422 Manuale Utente Pagina 12

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www.rovingnetworks.com 12
RN-BT-SRL-UM-1.0
APPENDIX A - NULL MODEM & FLOW CONTROL JUMPERS
You can configure the adapter’s serial interface to enable flow control and null modem signaling. You access the jumper
block by removing the cover from the Bluetooth serial adapter. Figures 10 and 11 show the jumper settings.
WARNING: Flow control signals are NOT RS-232 signaling tolerant. If you enable these signals with the jumpers, do not
exceed 3.3-V DC or permanent damage can occur.
Figure 8. RN-422, RN-240, RN-270 & RN-274 Jumpers
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Male DB9 (Default Conguration)
DTE 3 Wire - Flow Control Disabled
Jumper 1 < > 2, 3 < > 4, 9 < > 10
1
3
5
7
9
2
4
6
8
10
Female DB9 (Default Conguration)
DTE 3 Wire - Flow Control Disabled
Jumper 1 < > 3, 2 < > 4, 9 < > 10
1
3
5
7
9
2
4
6
8
10
Male DB9
DTE - Flow Control Enabled
Jumper 1 < > 2, 3 < > 4, 5 < > 6, 7 < > 8
1
3
5
7
9
2
4
6
8
10
Female DB9
DTE - Flow Control Disabled
Jumper 1 < > 3, 2 < > 4, 5 < > 6, 7 < > 8
1
3
5
7
9
2
4
6
8
10
Male DB9
DCE - Flow Control Enabled, Null Modem
Jumper 1 < > 3, 2 < > 4, 5 < > 6, 7 < > 8
1
3
5
7
9
2
4
6
8
10
Female DB9
DTE - Flow Control Enabled
Jumper 1 < > 2, 3 < > 4, 5 < > 7, 6 < > 8
1
3
5
7
9
2
4
6
8
10
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