OW-SERVER - 1-Wire to Ethernet Server

Ethernet and WiFi variations available

Reads all active devices every 2 seconds

Firmware can be flash upgraded from remote.

Manages concurrent client connections safely and reliably.

Debugging functionality helps simplify software integration.

3 separate 1-Wire networks providing robust communication.*

Automatically provides smart strong-pull-up for 1-Wire sensors.

Low Cost.

Reports the 1-Wire network connected to each device.

Automatic short detection on 1-Wire networks.**

1-Wire MicroLan capacity of 1000 feet of cable, 24 devices.

ESD Protection more than 27kV (IEC801-2 Reference Model.) on the 1-Wire bus.

LED indicators for Ethernet link/activity, power, and 1-Wire activity.

Easy Installation

ABS enclosure.

The OW-SERVER is an inexpensive Ethernet/WiFi to 1-Wire interface that is designed to efficiently monitor and control 1-Wire devices. The OW-SERVER will allow you to use industry standard Ethernet or WiFi products (switches, hubs, etc.) to build the backbone of your 1-Wire based sensor / control system. This provides several important benefits: First, 1-Wire networks can be easily distributed over great distances without having to deal with the challenges associated with the installation of physically large 1-Wire networks. By distributing the 1-Wire networks, the individual 1-Wire MicroLans can be kept to a smaller physical size, thereby improving responsiveness/reliability and decreasing installation costs. Second, since the OW-SERVER communicates over standard Ethernet/WiFi, you can take advantage of existing corporate LANs, WLAN, the Internet, and in-house MIS expertise for building out and maintaining the backbone of your sensor network.

The OW-SERVER has been designed in such a way to minimize the amount of network resources needed to monitor 1-Wire devices. It maintains the latest readings of its 1-Wire devices which are updated every 2 seconds. This enables the OW-SERVER to deliver a current reading without waiting for a time intensive temperature conversion (or other conversion) to be performed. Also, the OW-SERVER is designed to push data when a user defined alarm occurs via SNMP traps. This significantly reduces the necessary polling rate for many applications while still supplying assurance that any problem will be detected in a timely manner.

The OW-SERVER is ideal for many applications which include:
Server Room Monitoring
SCADA Systems
HVAC

A number of Ethernet protocols are used by the OW-Server including HTTP and SNMP. The HTTP interface is a simple webpage which shows the current overview of each connected sensor. By default, this page uses AJAX techniques to automatically update itself, insuring the data being displayed is current. The SNMP interface is divided into 3 sections: edsEnterprise, owTrap and owDevices. The edsEnterprise section presents basic product information, such as name and version. The owTrap section is where you define the IP address the trap should be sent, the high alarm, low alarm, and the hysteresis. The owDevices section data similar to the Overview and Devices webpage.

The OW-SERVER currently supports the following 1-Wire devices:

Embedded Data Systems Devices

OW-ENV-TH - Temperature / Humidity Sensor with Optional Relay

OW-ENV-THPL - Temperature / Humidity / Pressure / Light Sensor with Optional Relay

OW-ENV-TL - Temperature / Light Sensor with Optional Relay

OW-ENV-TP - Temperature / Pressure Sensor with Optional Relay

OW-ENV-TR - Temperature Sensor with Relay

OW-RTD4W - 1-Wire Interface for 4-Wire RTD with Optional Relay

OW-TEMP-B3-12A - DS18B20 Temperature Probe with Optional RJ12 Plug

OW-TEMP-BF-12 - Foil Tape DS18B20 Temperature Sensor with Optional RJ12 Plug

OW-TEMP BW-12 - Wall Mount DS18B20 Temperature Sensor with Optional RJ12 Plug

OW-TEMP-S3-12 - DS18S20 Temperature Probe with Optional RJ12 Plug

OW-TEMP-SF-12 - Foil Tape DS18S20 Temperature with Optional RJ12 Plug

OW-TEMP SW-12 - Wall Mount DS18S20 Temperature Sensor with Optional RJ12 Plug

Maxim Devices

DS18B20 - 12 Bit Temperature Sensor

DS18S20 - 9 Bit Temperature Sensor

DS2406 - Dual Addressable Switch

DS2408 - 8 Channel Addressable Switch

DS2423 - 2 Channel Counter

DS2438 - Battery Monitor with Temperature and A/D

DS2450 - Quad A/D Converter

* OW-SERVER-ENET-2 Only

** OW-SERVER-ENET-2 Only

OW-SERVER-ENET-2

1-Wire Connection
3 RJ12 Jacks

Communication
10BASE-T Ethernet or 802.11b/WiFi

Network Protocols HTTP, HTTP Post, SNMP, SNMP Traps, TCP Socket, Multicast, DHCP

1-Wire Devices Up to 24 devices

Supply Voltage DC 10% 5V

Rated Current (average) with Ethernet but no 1-Wire devices connected 245mA

Communication 10/100Base-T Ethernet

Enclosure Dimensions (L x W x H) 139.7 x 85.27 x 31.75mm

Weight 0.2kg

Operating Temperature -40 to 85C

Storing Temperature -40 to 85C

Operating Humidity (non-condensing) 0 to 90%RH

Storing Humidity (non-condensing) 0 to 90%RH

Supported Devices
DS18B20: Programmable Resolution 1-Wire Digital Thermometer
DS18S20: 1-Wire Digital Thermometer
DS2406: Dual Addressable Switch

DS2408: 8 Channel Addressable Switch
DS2423: 4kbit 1-Wire RAM with Counter
DS2438: Smart Battery Monitor

DS2450: Quad A/D Converter

OW-ENV-TH: Temperature / Humidity Sensor

OW-ENV-THR: Temperature / Humidity Sensor with Relay

OW-ENV-THPL: Temperature / Humidity / Pressure / Light Sensor

OW-ENV-THPLR: Temperature / Humidity / Pressure / Light Sensor with Relay

OW-ENV-TL: Temperature / Light Sensor

OW-ENV-TLR: Temperature / Light Sensor with Relay

OW-ENV-TP: Temperature / Pressure Sensor

OW-ENV-TPR: Temperature / Pressure Sensor with Relay

OW-ENV-TR: Temperature Sensor with Relay

OW-RTD4W: 1-Wire Interface for 4-Wire RTD

OW-RTD4W-R: 1-Wire Interface for 4-Wire RTD with Relay

OW-VIB: Vibration Sensor

OW-VIB-R: Vibration Sensor with Relay

OW-SERVER-WiFi & OW-SERVER-ENET*

1-Wire Connection
3 RJ12 Jacks

Communication
10BASE-T Ethernet or 802.11b/WiFi

Network Protocols HTTP, Multicast, DHCP, SNMP, TFTP

Supported Devices
DS18B20: Programmable Resolution 1-Wire Digital Thermometer
DS18S20: 1-Wire Digital Thermometer
DS2406: Dual Addressable Switch

DS2408: 8 Channel Addressable Switch
DS2423: 4kbit 1-Wire RAM with Counter
DS2438: Smart Battery Monitor

DS2450: Quad A/D Converter

OW-ENV-TH: Temperature / Humidity Sensor

OW-ENV-THR: Temperature / Humidity Sensor with Relay

OW-ENV-THPL: Temperature / Humidity / Pressure / Light Sensor

OW-ENV-THPLR: Temperature / Humidity / Pressure / Light Sensor with Relay

OW-ENV-TL: Temperature / Light Sensor

OW-ENV-TLR: Temperature / Light Sensor with Relay

OW-ENV-TP: Temperature / Pressure Sensor

OW-ENV-TPR: Temperature / Pressure Sensor with Relay

OW-ENV-TR: Temperature Sensor with Relay

1-Wire Devices Up to 24 devices

Supply Voltage 6.5-16V

Supply Current 250mA