fSONA Sonabeam E Series, Installation Manual

Page: 54 / 87

Installing Your SONAbeam Terminal
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Terminal Mgmt RS232 Interface
Your SONAbeam terminal supports a simple (RS232) serial interface to a PC’s COM
port for terminal monitoring and management. The connection between the SONAbeam
terminal and your PC is a standard, 3-wire (
TX – RX – GND
) RS232-serial interface
running at 19,200 bits per second, formatted: 8 bits, 1 stop bit and no parity.
A standard 8 pin RJ45 modular connector is used with the following specification:
Position
Signal
Description
1
NC
2
NC
3 NC
4 SG
5 RD
6 TD
7 CTS
8 NC
When connecting your PC’s COM port to the SONAbeam terminal, use a null-modem
configuration (with TD crossed to RD, and RD crossed to TD), as shown in
Figure 16
.
Figure 16 – Typical SONAbeam – PC Interface
NOTE…
The computer’s COM port and the terminal’s serial console ports are both
configured as Data Terminal Equipment (DTE). A crossed (Null Modem) cable
connection is therefore required to successfully interface the two…
Your computer’s COM may also require looping RTS CTS and/or
DTR DCD in order to enable communications, depending on the
configuration of the COM port used.
Pin 1
TD
RD
GND
TD
RD
GND
COM Port on
Host Computer
SONAbeam Serial
Console Port
DTR
CTS
Pin 8