EmbeddedBlue 500
87
Copyright ©2003 A7 Engineering, Inc.
Pinout Diagram
The eb500 module features a 20 pin header with 0.1” spacing for connection to the AppMod
header. Currently, nine of the pins are in use (seven when flow control is set to none). The
other pins are reserved for future use.
1 3 5 7 9 11 13 15 17
19
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
2 4 6 8 10 12 14 16 18 20
Figure 16: eb500 Pinout Diagram
Pin Name
Pin
Type
Description
VSS 1,
2
GND Ground
RX
3
TTL output
UART data output
TX
4
CMOS/TTL input
UART data input
RX Flow (RTS)
5
CMOS/TTL input,
weak pull down
Signaled high to stop module data
transmission
TX Flow (CTS)
6
TTL output
Signaled high to stop host data
transmission
7
Reserved
Reserved for future use.
Connection
Status
8 TTL
output
High when there is an active wireless
connection
Mode Control
9
CMOS/TTL input,
weak pulled down
Low for command mode / High for
data mode
10 - 19
Reserved
Reserved for future use.
VIN 20
VCC Module
supply, 5 to 12V DC
Table 4: eb500 Pinout Description
