Serial Port Connectors - Boser HS-6252 Manual

3.11 Serial Port Connectors

The HS-6252 offers two NS16C550 compatible UARTs with
Read/Receive 16-byte FIFO serial ports and two internal 10-pin
headers.
CN9, CN8, CN5 and CN6: COM1/COM2/COM3/COM4
Connectors (5x2 Header)
PIN Description
1
3
5
7
9
CN10: RS-422/485 Connector (5x2 Header)
PIN Description
1
3
5
7
9
JP7: RS-422/485 Transceiver Enabled/Disabled Select
Always Enable
Enable by "-RTS" signal
Enable by writing the REG:2 EFH BIT0=1
* Always Disabled
JP8: RS-422/485 Receiver Enabled/Disabled Select
Options
Always Enable
Enable by "-RTS" signal
* Always Disabled
JP9: COM2 use RS-232 or RS-422/485 Selection
Serial Port Setting
PIN
DCD 2
RXD 4
TXD 6
DTR 8
GND 10
PIN
TX- 2
RX+ 4
GND 6
RTS+ 8
CTS- 10
Options
* RS-232
RS-422/485
Description
DSR
RTX
CTX
RI
N/C
Description
TX+
RX-
RTS-
CTS+
N/C
Settings
Short 1-2
Short 3-4
Short 5-6
OPEN
Settings
Short 1-2
Short 3-4
OPEN
JP9
OPEN
SHORT
15