FreeWave Technologies Inc. 42182112519 Manuale Utente
Spread Spectrum Modem Wireless Data Transceiver Installation Guide
LIG0003AD Rev A
Version 6.0
7
C. Board Level Pin Assignments
The board level transceiver uses standard RS232 polarity and voltage levels for all of the RS232
signal lines (DTR, Transmit Data, Receive Data, Carrier Detect, RTS, and Clear to Send).
signal lines (DTR, Transmit Data, Receive Data, Carrier Detect, RTS, and Clear to Send).
Pin 1: B+ Power input.
Pin 2: Interrupt (INT) – Input – A 0 volt level on this pin will switch the radio into setup mode.
Pin 2: Interrupt (INT) – Input – A 0 volt level on this pin will switch the radio into setup mode.
Table 4:
Board Level
Transceiver Pin out
Pin Signal
Assignment
1 Power
B+
input
2
Input
Interrupt (Ground to invoke)
3
Input
DTR (Data Terminal Ready)
4
Ground
5
Output
TXD (Transmit Data)
6
Ground
7
Input
RXD (Receive Data)
8 Output
CD
(Carrier
Detect)
9
Input
RTS (Redy to Send)
10
Output
CTS (Clear to Send)
Note: Pin 1 board level transceiver is the pin farthest from the three LEDs and pin 10 is closest to
the LEDs.
D. Power Connection
The FGR2 series transceivers can be operated from any well-filtered DC power source, input
voltages vary by model. The power source should be capable of providing at least 0.8 amperes of
continuous current. The pin #1 of the 10-pin connector on the transceiver is the positive lead; pin
#4 or pin #6 of this connector should be as a negative lead.
Transceiver is designed to operate in negative ground systems only.
voltages vary by model. The power source should be capable of providing at least 0.8 amperes of
continuous current. The pin #1 of the 10-pin connector on the transceiver is the positive lead; pin
#4 or pin #6 of this connector should be as a negative lead.
Transceiver is designed to operate in negative ground systems only.