Usconverters UCW4842 User manual

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Quick reference sheet for
WiFi to RS485/422 adapter UCW4842
Block Terminal Connector:
RX-/B RX+/A TX-TX+
LED:
Data: Red
Status: Blue
Switch:
RS485
RS422
2 dBi dipole
antenna
Mini USB power port
Power switch
4.5 - 24VDC power option
Reset switch
120 ohm termination resistor
Open: disabled
Closed: enabled
Package Contents:
WiFi RS-232 adapter x 1
2 dBi dipole antenna x 1
USB Cable x 1

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SPECIFICATIONS
Part number UCW4842
Processor
Broadcom BCM4390
ARM Cortex-M3 @48MHz, 32-bit CPU + WLAN CORE
Memory: 448KB RAM and 2MB flash
Operating system Windows 10, 8.1, 8, 7, Vista, XP (32/64-bit)
Network IEEE 802.11 b/g/n
Frequency 2.412 - 2.484 GHz
Security WPA TKIP, WPA AES, WPA2 TKIP, WPS2 AES
Protocols ARP, IP, ICMP, UDP, TCP, DHCP, Modbus TCP RTU (RS485)
Network mode Simple AP, Station, Dual (AP & Station) / Infrastructure, Ad-Hoc
Transmit power +17dBm @802.11b, +13dBm @802.11g, +11dBm @802.11n
Minimum receiver sensitivity -80dBm
Power consumption Max. 360mA peak at 3.3V
Baud rate 9600 to 921,600 bps
Data bits 8
Parity None, even, odd
Stop bits 1
Parameter configuration Web browser over WiFi
Operating distance Up to 330 feet (100 meters)
RS485 / RS422 Signals RS485: D+, D-
RS422: TX+, TX-, RX+, RX-
Flow control Automatic Data Direction Control
Serial port Removable screw terminal header
Antenna External 2dBi di-pole, SMA Female
Power supply
•5.0VDC by included mini USB cable
•5.0 to 24.0VDC by screw terminals
•External power supply or battery
Operating temp. 0C to +70C
External battery option Yes
Dimensions 80 x 40 x 18 mm
Certifications CE, FCC, ROHS

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UPowerU
The adapter can be powered either through the mini USB port (max 5.5VDC) or through the
screw terminals (max 24VDC).
UDefault COM port settings
Baud rate: 9600 bps
Data bit: 8
Parity: none
Stop bit: 1
Flow control: none
UDefault network settings
Adhoc mode (Simple AP), DHCP enabled
SSID: Serial2WiFi_ab_cd (“ab” and “cd” is the last 4 digits of the MAC address)
Security: WPA2, password: 12345678
IP: 192.168.10.1
Socket port: 8080
Channel: 6
Log in ID: admin
Log in password: admin
UParameter management
The adapter’s parameters can be configured using a standard web-browser.
Please refer to the setup guide “How to setup the UCW232C Serial WiFi adapter” for details.
UVirtual COM port driver
A virtual COM port can be created with one of the following downloadable software utilities:
USR-VCOM
PortShare
Fabulatech COM port redirector
Please refer to the setup guide “How to setup the UCW232C Serial WiFi adapter” for details.
ULED indication lights:
Mode LED Status Remark
Start * Red (System): off on off off on
Red LED solid on
when ready
Blue (Data): off on off flash ... (not ready) off
WPS Red (System): flash go to * Press and hold more
than 1 sec.
Blue (Data): off go to *
Reset to
default
Red (System): off go to * Press and hold more
than 5 sec.
Blue (Data): off go to *
Data Blue (Data): flash when data input or output via serial port
Failure Red (System): off when system fail
OTA Red (System): flash in turn with Blue(Data) LED F/W upgrade
Blue (Data): flash in turn with Red (System) LED

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UReset / WPS button
UResetU: Press the “Reset” button for more than 5 seconds. The LEDs will turn off for a few seconds and then the adapter will
reboot to the default values.
UWPSU: Press the button for less than 3 seconds to enable WPS.
UFirmware upgradeU: Power off the adapter and press the reset button, then power on the adapter while holding the reset
button. Release the reset button when the two LED lights are flashing; the adapter will then be in OTA mode and ready for the
firmware upgrade.
USetup examples.
One to one connection: The two WiFi adapters will be connected directly without access point.
Simple AP (Default) 1 Client (Station)
One to 5 connection via Simple AP
Simple AP (Default) 5 Clients (Station)
One to 5 connection via other Access Point:
Simple AP (Default) 5 Clients (Station)
Federal Communications Commission (FCC) Statement
RADIO FREQUENCY INTERFERENCE STATEMENT
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS.
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED , INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED
OPERATION. Tested to comply with FCC standards for home or office use.
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