4RF Aprisa LTE - Serial RS-232 Interface Connections

60 | LTE Router Installation
Aprisa LTE User Manual 2.1
Serial RS-232 Interface Connections
The Aprisa LTE RS-232 Serial Interface is always configured as a DCE:
RJ45
Pin Number
Pin Function
Direction
TIA-568A Wire
Colour
TIA-568B Wire
Colour
1
RTS
Input
Green / white
Orange/white
2
DTR
Input
Green
Orange
3
TXD
Input
Orange / white
Green/white
4
Ground
Blue
Blue
5
DSR
Output
Blue / white
Blue/white
6
RXD
Output
Orange
Green
7
DSR
Output
Brown / white
Brown/white
8
CTS
Output
Brown
Brown
Note: The TIA-568B wiring is the most commonly used and matches the cables we supply.
RS-232 Customer Cable Wiring
Aprisa LTE RS-232 Interface - DCE
DTE Customer Interface
DCE Customer Interface
RJ45
Pin Number
Pin
Function
Direction
Pin
Function
DB9 Male
Pinout
Pin
Function
DB9 Female
Pinout
1
RTS
Input
RTS
7
CTS
8
2
DTR
Input
DTR
4
DSR
6
3
TXD
Input
TXD
3
RXD
2
4
Ground
Ground
5
Ground
5
5
DSR
Output
DCD
1
6
RXD
Output
RXD
2
TXD
3
7
DSR
Output
DSR
6
DTR
4
8
CTS
Output
CTS
8
RTS
7