B&B Electronics WLNN-EK-DP551 - User Manual - Manual (Page 26)

B&B Electronics
26
Airborne Enterprise WLNN EVB Users Guide
Designator Pin Description
10 CN1 Pin 6
11 TxD-
12 RxD-
13 CN1 Pin 8
14 CTS
15 RTS
16 CN1 Pin 7
5.19 J6
This header correctly enables the Secondary UART transceivers for the interface
type selected by the configuration of J5. The available options are shown in Table
25.
TABLE 24 - SECONDARY UART TRANSCEIVER CONFIGURATION
Designator Description Configuration
J6
RS232
RS422/485
Software Select
FIGURE 11 - SECONDARY UART TRANSCEIVER HEADER
TABLE 25 - SECONDARY UART TRANSCEIVER HEADER PIN-OUT
Designator Pin Description
J6
1 RS422/485 Rx Enable (Active Low)
2 RXEN
3 GND
4 RS232 Rx Enable (Active Low) with 10KΩ Pull-up
5 3.3VDC
6 SER_MODE
7 RS422/485 Tx Enable (Active High)
8 /TXEN (Active Low)