Document 1-0479-013 Rev B
31
13.0 RS-232 PIN ASSIGNMENTS
Pin
Assignment
Signal
1
Carrier Detect
Output
2
Receive Data
Output
3
Transmit Data
Input
4
Data Terminal Ready
Input
5
Ground
6
No connection
7
Request To Send
Input
8
Clear To Send
Output
9
No connection
Table 12: RS-232 Pin Assignments
Definitions:
Pin 1:
C
arrier
D
etect
Used to show that there is an RF connection between
transceivers.
Pin 2:
R
eceive
D
ata
This is used to transmit data bits serially from the transceiver
to the system device connected to the transceiver.
Pin 3:
T
ransmit
D
ata
This is used to receive data bits serially from the system
device to the transceiver.
Pin 4:
D
ata
T
erminal
R
eady The transceiver only uses this line in Point-to-Point
Slave/Master switchable mode. (Refer to operation mode
selections) or for DTR Connect (refer to Multipoint
Operation)
Pin 5:
G
round
Signal return for all pins.
Pin 6: Not used
Pin 7:
R
equest
T
o
S
end
The transceiver does not recognize RTS flow control. RTS is
used as a control line in RTS/CTS mode (Refer to Radio
Transmission Parameters)
