SB72 User's Manual, 350030-006
Page 10
Connector Descriptions
J1 –Factory Test Connector, Dual Row 10-Pin Header
For factory use only.
J2 –RS-485, Dual Row 10-Pin Header
The RS-485 interface support s 4-wire full duplex (FD), and 2-wire half duplex (HD). Note that jumpers
JP1 – JP5 must be configured correctly to FD or HD mode.
Pin
Signal
Pin
Signal
1
FD RX-
2
GND
3
FD RX+
4
GND
5
VCC 5V
6
GND
7
FD TX+ / HD +
8
GND
9
FD TX- / HD -
10
GND
J3 – Factory Test Connector, Dual Row 16-Pin Header
For factory use only.
J4 – SPI Interface Connector
Single row straight header
Pin
Signal
1
GND
2
DOUT
3
CLK
4
DIN
5
/SPI_CS3
J5 – Serial TTL Dual Row 10-Pin Header
This connector allows access to TTL level serial ports 0 and 1. Note that pin 9 is a VCC 5V input, which
allows for a single connector interface with TTL serial and power to the SB72.
Pin
Signal
Pin
Signal
1
GND
2
CTS1
3
TX1
4
RX1
5
RTS1
6
RTS0
7
CTS0
8
TX0
9
VCC 5V
10
RX0
