IC nexus NSD2105, User Manual

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NSD2104/NSD2105 Hardware User Manual
Page
12
3.2 UART Connectors & Debug Port
There are 3 UART ports on this device. The connector type and functions are described in
the table below:
UART
Number
Connector
Type
Available
Signals
Notes
UART 1 1x5 header
(CN2)
CMOS signal level
(TX, RX)
Console/Debug port.
A separate debug cable is required.
UART 2
DB9
(CON4)
RS232 signal level
(TX, RX, RTS, CTS)
RS232 port
UART 3 DB9
(CON3)
RS485 signal level
(485+, 485-)
RS485 port
Note: RS485 port works only in
HALF Duplex mode
CN2:
UART1:
Debug /
Console
CON3:
UART3
RS485
CON4:
UART2
RS232