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Restore Factory Default Settings
1. Keep the Function button pressed for 10 seconds; after 5 seconds front panel LEDs
start to blink but keep the button pressed; LEDs start to blink faster 5 seconds later.
2. Release the button, then press it 3 times quickly; the following factory default settings
are restored:
IP address (static) 192.168.0.100
Subnet mask 255.255.255.0
Static gateway 192.168.0.1
DHCP Disabled
TCP/IP port nr. LW2 / LW3 10001 / 6107
RS-232 mode Command Injection
RS-232 control protocol LW2
RS-232 port setting 57600 BAUD, 8, N, 1
RS-232 command injection port 8001
GPIO output level High
GPIO output direction Input
GPIO (General Purpose Input/Output Ports)
The device has three GPIO pins which operate at TTL digital signal levels
and can be set to high or low level (Push-Pull). The direction of the pins
can be input or output (adjustable). The signal levels are the following:
Input voltage (V) Output voltage (V) Max. current (mA)
Logic low level 0 - 0.8 0 - 0.5 30
Logic high level 2 -5 4.5 - 5 18
GPIO connector and plug pin assignment
Pin nr. Signal
1, 2, 3 Congurable
4 Ground
The total available current of the controller is 180 mA.
The recommended cable for the connectors is the AWG24 (0.2 mm
2
diameter) or the generally
used ‘alarm cable’ with 4x0.22 mm
2
wires.
Ethernet
The Ethernet port on the RAC-B501 can be connected to a LAN hub, switch, or router
with a LAN cable. The other one behaves as an Ethernet uplink port. The device supports
10/100 Mbps data transfer rate.
The Ethernet port has auto crossover function. It is able to
recognize and handle both cable types: patch and cross TP cables.
RS-232
RAC device provides 3-pole Phoenix connector for bi-directional serial
communication. The unit can be controlled via serial port or it is able to send
serial messages to control devices with standard RS-232 port (e.g. third-
party or Lightware devices).
The signal levels are the followings:
Output voltage (V)
Logic low level 3 - 15
Logic high level -15 - 3
RS-232 connector and plug pin assignment
Pin nr. Signal
1 Ground
2 TX data
3 RX data
The RAC-B501 series works as a DCE unit according to its pin-out.
Software Control – Using Lightware Device Controller (LDC)
The device can be controlled from a computer through the Ethernet port
using Lightware Device Controller. Please download the application from
www.lightware.com, install on Windows PC or macOS and connect to the
device via the Ethernet port.
Firmware Update
Lightware Device Updater (LDU2) is an easy and comfortable way to
keep your device up to date. Establish the connection via Ethernet.
Download and install LDU2 software from the company’s website
www.lightware.com where you can nd the latest rmware package as well.
Set Dynamic IP Address (DHCP)
1. Keep the Function button button pressed for 5 seconds; front panel LEDs start to blink.
2. Release the button, then press it 3 times quickly. DHCP is now enabled.
2 3
1 2 3