Boser HS-1770, Manual

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15
3.11 Serial Port Connectors
The HS-1770 offers NS16C550 compatible UARTs with Read/
Receive 16-byte FIFO serial ports and four internal 10-pin headers
and one RS-422/485 connector.
CN10A: COM 1 Connector (DB9)
PIN Description PIN Description
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTS
7 DTR 8 RI
9 GND 1
5
6
9
CN22/CN24/CN25: COM 2~COM 4 Connector (5x2 Header)
PIN Description PIN Description
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTS
7 DTR 8 RI
9 GND 10 N/C
1 9
10 2
JP7: RS-422/485 Connector (3x2 Header, COM4)
PIN Description PIN Description
1 TX- 2 TX+
3 RX+ 4 RX-
5 GND 6 +5V
1 5
6 2
NOTE:
The terminal resistance of RX & TX is set at 180 Ω .
JP10: COM 4 use RS-232 or RS-422/485 Select
Options Settings
RS-232 (default) Open
RS-485 by Auto 1-2, 3-4, 5-7, 8-10 Short
RS-485 by -RTS 1-2, 3-4, 7-9, 8-10 Short
RS-422 Full Duplex 1-2, 3-4, 6-8 Short
1 9
10 2
NOTE: If COM 4 is using for RS-422/485, that COM4 cannot be used
while RS-422/485 is selected.