Owner's manual

35
Appendix A: Connections
A.1. Pin Assignment
A.1.1. Parani-ESD100V2/110V2
7 8 9 10 11 12
2 3 4 5 6
1
GND
GNDPairing
VDDRTSTXD RXD CTS
DTRDCD DSR RST
Figure A-1 Pin Assignment of Parani-ESD
Table A-1. Pin Assignment of Parani-ESD
Pin #
Signal
Direction
Description
Signal Level
1
GND
-
Power Ground
Ground
2
TxD
Output
UART Data Output
TTL
3
RxD
Input
UART Data Input
TTL
4
RTS
Output
UART Ready to Send
TTL
5
CTS
Input
UART Clear to Send
TTL
6
VDD
Input
DC Input (3.0~3.3V)
Power
7
Pairing
Input
Pairing Input (Active Low)
TTL
8
DCD
Output
Bluetooth Connect Detect (Active Low)
TTL
9
DSR
Input
Data Set Ready
TTL
10
DTR
Output
Data Terminal Ready
TTL
11
RST
Input
Reset (Active Low)
TTL
12
GND
-
Power Ground
Ground
A.1.2. DCD Signal (Status: Bluetooth Connect Detect)
Status of Bluetooth connection will be delivered to Host PC via DCD line. When Bluetooth connection
is made, DCD signal will be to low.