ClearOne Converge Pro - Manual (Page 343)

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All Models: Port B (Female DB-25)
Pin # User Definable Control/Status Default Description
1 N Control (Input) Preset Mask Bit 0
2 N Status (Output) Preset Indicator Bit 0
3 N Control (Input) Preset Mask Bit 1
4 N Status (Output) Preset Indicator Bit 1
5 N Control (Input) Preset Mask Bit 2
6 N Status (Output) Preset Indicator Bit 2
7 N Control (Input) Preset Mask Bit 3
8 N Status (Output) Preset Indicator Bit 3
9 N Control (Input) Preset Mask Bit 4
10 N Status (Output) Preset Indicator Bit 4
11 N Control (Input) Preset Mask Bit 5
12 N Status (Output) Preset Indicator Bit 5
13 N Control (Input) Preset Mask Bit 6
14 N Status (Output) Preset Indicator Bit 6
15 N Control (Input) Preset Mask Bit 7
16 N Status (Output) Preset Indicator Bit 7
17 N Control (Input) Preset Mask Bit 8
18 N Status (Output) Preset Indicator Bit 8
19 N Control (Input) Preset Mask Bit 9
20 N Status (Output) Preset Indicator Bit 9
21 Y Control (Input)
22 Y Status (Output)
23 NA NA +3.3V 300 mA
24 NA NA +3.3V 300 mA
25 NA NA Ground
ALL MODELS: RS-232 PORT
Pin # User Definable Control
1 N DCD
2 N TXD
3 N RXD
4 N DTR
5 N Ground
6 N DSR
7 N CTS
8 N RTS
9 N No connection
NOTE: To avoid communication errors, ClearOne recommends using all nine pins when
connecting to the RS-232 port.