Track your environmentals with D-Wire Sensors
D-Wire sensors are a way to track environmentals in your server room (wide range temperature support: -40 to 180 degrees F), PBX closet, or data center using minimum analog capacity. With the TempDefender G2's D-Wire sensors, you don't have to worry about analog capacity on your RTUs, tangled masses of sensors at your RTU, or even the trouble of wiring analog connectors.
D-Wire sensors from DPS use simple RJ-11 connectors, in and out, and allow you to chain up to 8 sensors to a single TempDefender G2 D-Wire port. Your sensor chain can run a maximum of 600 feet, so you can run sensors out as far as you need to monitor your equipment, without having to place analog-capable RTUs in multiple places. Note: Internal D-Wire sensors (for internal temperature or internal voltage monitoring, for example) impact total sensor cable length.
The maximum length of a D-Wire daisy chain varies depending on the number of sensor nodes in the chain. A single sensor can receive power and transmit data over 600 feet of wire (for example, 3 sensors could have lengths less than or equal to 475 feet). Adding sensors to the chain consumes more power and reduces the maximum allowable wire length, as described in the table below:
Temperature sensor that connects to the DPS Sensor network. This sensor can report live-analog values for monitoring temperature within +/-2 degrees F.
Monitor temperature and humidity using the D-Wire Temperature and Humidity combination sensor. This device can accurately report the live-anlog values for temperature (+/- 2 degrees F) and humidity (+/0 4% RH).
An additional LED on this D-Wire Temperature Sensor gives a visual notification on the sensor. Much like the standard Temperature Sensor, this device will monitor live-analog values and can report temperature within +/- 2 degrees F of the actual value.
Battery Voltage Monitor & Temperature Probe that connects into the DPS Sensor network. This sensor is ideal for the digital inputs located on the Battery Voltage Monitor G2. Battery voltage range options include: 0VDC - 5VDC, 0VDC - 12VDC, 0VDC - 16VDC, and 0VDC - 60VDC.
External 8 foot temperature probe that is compatible with the DPS sensor network. This sensor may be plugged directly into a D-Wire point of a DPS RTU or may be the terminating point of a daisy chain of D-wire sensors. Note: This sensor probe is not daisy chainable.
|Maximum Allowable D-Wire Cable Length|
|Sensor Nodes||Max Length (ft)|
Note: Distances will vary depending on D-Wire capable RTU. Consult applicable product section for product-specific D-Wire information. DPS recommends that no more than 16 sensors are used on a single chain.
|D-Wire Temperature and Humidity Sensor Full Specifications|
|Dimensions:||2.25"H x 1.625"W x .9375"D|
|Operating Temperature:||-40 to 180 degrees F (-40 to 82.2 degrees C)|
|Accuracy||+/- 2 degrees F and +/- 4% RH|
|Aggregate Length:||40 to 800 feet|
Data Center Management Techniques
D-Wire sensors are all powered directly from the TempDefender G2 D-Wire ports and support 4 analog thresholds (major under, minor under, minor over, major over). You can daisy chain these sensors together, up to 32 to a single TempDefender G2, in any configuration. Run 32 sensors in a single chain or run eight sensors from each of the TempDefender G2's D-Wire ports.
D-Wire Temperature Sensor
*The TempDefender G2 is a more advanced model than the TempDefender IT shown below. This video should still prove useful as a TempDefender G2 reference. They are similar in design. "G2" refers to it being the second generation.
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