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CONCH HM Series User Manual

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4
4.1 COM1
HM Series Connection Manual
COM2 (COM3)
The communication port COM2 supports 3 communication types: RS232 / RS485 /
RS422. COM3 could be enabled if RTS/CTS Handshaking is not employed.
P1 P14
25P
(Female
Adapter)
Pin
COM2 Pin Definition
COM3 Pin Definition*
1
N/A
2
RS232 TXD
3
RS232 RXD
4
RS232 RTS
RS232 TXD
5
RS232 CTS
RS232 RXD
6
+5V Output ( Max. 100mA )
+5V Output ( Max. 100mA )
7
Signal Ground
Signal Ground
8
Alarm Output (Optional)
Contact Specifications
1A 120VAC / 24VDC
Alarm-C
C
A
B
9
Alarm-A
10
Alarm-B
11
Terminating resistor for CTS-
Terminating resistor for RX-
12
RS422 CTS+
RS422 RX+
13
RS422 CTS-
RS422 RX-
14
RS422 TX+ / RS485+
15
RS422 TX- / RS485-
16
RS422 RX+
17
RS422 RX-
18
Terminating resistor for RX-
19
Signal Ground
Signal Ground
20
N/A
21
N/A
22
N/A
23
RS422 RTS+
RS422 TX+ / RS485+
24
RS422 RTS-
RS422 TX- / RS485-
25
N/A
*Note: COM3 will be enabled only when RTS/CTS handshaking of COM2 is set
Disable.

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CONCH HM Series Specifications

General IconGeneral
BrandCONCH
ModelHM Series
CategoryRecording Equipment
LanguageEnglish