User’s Manual Version 1.3
Airolinx Wireless Serial-Ethernet Server
STW-601C
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Mini DIN to DB9 cable, the DB9 connector pin assignments for Serial port:
Table 2.
DB9
Pin#
RS-232
RS-485 RS-422
1
DCD
2
RXD
Tx+
3
TXD Data+
Rx+
4
DTR
5
SG (Signal Ground)
6
DSR
7
RTS Data-
Rx-
8
CTS
Tx-
9
N/A N/A
N/A
Terminal block pin assignments for Serial port and Power
5-pin for serial connections
RS-232
RS-485
RS-422
3-pin for Power input
SG
GND GND GND
FG FG
RTS/R-
RTS Data- R-
Vin-
GND
TxD/R+
TxD Data+ R+
Vin+
9~30V
CTS/T-
CTS T-
RxD/T+
RxD T+
D.4
Beep & LED Status
Startup status
“ ^ “ : Beep twice “ = “ : Beep off
Message
Description
^==^========^^^
(5sec)
Startup OK and AP firmware is enabled
Table 1. Buzzer indication
Wireless Signal Strength status
The BSS quality can be detected by LED indicator on STW. On running time, pressed default key and
then released, one of the specified actions below shall be done that depend on the released time after you
heard how many beeps. BSS quality is indicated by count of LEDs as shown below: