IC nexus NSD2105, Руководство пользователя

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NSD2104/NSD2105 Hardware User Manual
Page
13
DB9
Pin
2x4
header
RS232 RS485
1 -- --- ---
2 4 RxD 485+
3 6 TxD 485-
4 1 --- ---
5 5 GND GND
6 7 --- ---
7 8 RTS ---
8 2 CTS ---
9 -- --- ---
DB9 Male Connector DB9 Female Connector
UART1 is dedicated as the debug or console port. The default communication settings are
Baud Rate 115200, 8 data bits, no parity, 1 stop bit and no flow control.
Note that UART1 is at CMOS signal level. There is no RS232 transceiver on the port.
A separate debug cable is required to connect UART1 to a PC terminal.
A DB9 null modem cable (or adapter) is required when you want to connect UART1 to a
PC with terminal emulation software such as TeraTerm.
1 2 3 4 5
6 7 8 9
5 4 3 2 1
9 8 7 6
UART1 Connection Diagram:
NSD2104
or
NSD2105
UART1