NetPing Input+Relay 254R304
- 162.00 USD
This device is for remote monitoring of sensors via the Ethernet/Internet network. It allows you to control external devices and receive information about the conditions of sensors and notifications about a sensor status remotely.
- 2 х 10/100-BASE-TX Ethernet ports;
- A metal case with brackets for mounting on a DIN rail;
- 4 built-in 24 V changeover relays with an indication for switching;
- A built-in temperature sensor;
- 1-wire sensor support;
- 4 Input lines for connecting sensors of a “dry contact” type;
- External sensors are supported: temperature, humidity, door metal, liquid, voltage supply, motion and so on;
- Power of the device from POE (Power over Ethernet) or using a 12V 2А power battery.
The device is not intended for any domestic use.
NetPing Input+Relay 254R304 — is a device for remote sensor monitoring equipped with 4 built-in low power relays. It makes it possible to connect sensors of the "dry contact" type and sensors with a 1-wire interface. The device has a compact metal case and brackets for mounting on a DIN rail. Such sensors as a door metal sensor and PIR detector, which can be connected to it, will warn you about unauthorized access. Temperature sensors, humidity sensors, and liquid sensors will allow you to receive immediate notifications about emergency situations. Supply voltage sensors and power quality monitoring sensors will immediately notify you about failures and power outages in the household network.
NetPing Input+Relay 254R304 is delivered without a power battery. In order to work with this device, you can use the POE (Power over Ethernet) connection or a 12V 2A power supply unit.
Attention: It is forbidden to power the device from a power supply unit and from the POE at the same time!
NetPing Input+Relay 254R304 is usually used:
To monitor climatic conditions of equipment operation;
To monitor and restrict access to cabinets;
To control external devices and equipment with the help of a relay;
To notify responsible people about emergency situations.
Connected sensors and monitoring functions of NetPing Input+Relay 254R304:
Temperature sensorsExternal temperature sensors are extremely popular sensors in monitoring systems. You can control a temperature mode of an important equipment operation, receive timely notifications about failures and malfunctions in a microclimate control system, diagnose cooler systems failures and accidental overlaps of ventilation flows with their help.
Humidity sensorIt allows you to estimate the relative humidity of ambient air. This sensor is usually used to monitor the optimal operating conditions of computer equipment in server rooms.
Email-, SNMP TRAP, Syslog notifications about sensors triggering
When the sensors connected to the device are triggered, they can send the following notifications:
Email - the device can send email messages directly via the SMTP server. Both notifications of sensor triggering and periodic reports on its status are sent by email.
SNMP TRAP is convenient to use for integration with monitoring systems as well as for performing automatic actions on a PC (for example, to start playing a sound notification) using special software.
Syslog - using special software on a PC (a Syslog server), all messages from sensors can be saved as a text file for further analysis, and you can use other features of this standard.
Supply voltage sensor
This sensor allows you to detect the voltage presence or absence in the power socket to which the sensor is connected. A common function for this sensor is to receive notifications when a power failure occurs. In this case, the NetPing device itself must be powered from a UPS, battery, or backup power line.
Door sensor metalIt carries out security and monitoring functions, helps to track the fact of opening/closing a door to a server room or a door of a switchboard with equipment.
Liquid sensorIt allows you to detect the body of water on the floor of the server room or at the bottom of the switchboard. In case of flooding (an accident in the water supply or heating system), this sensor allows you to warn the responsible employee properly about an abnormal situation. Moreover, this sensor can be useful for monitoring water leakage from a condensing system of an air conditioner.
Smoke detectorIt allows you to detect any smoke content in a room. With NetPing devices, it is usually used as a backup sensor for monitoring. To implement the functions of security and fire systems, you must use appropriate equipment!
BuzzerIt is intended for sound notifications of the occurrence of a certain event. It can be controlled via the web or SNMP interface of the device
User-friendliness, easy integration in existing systems, reliability:
The device works 24 hours, 7 days a week, without freezing
The device was designed for continuous operation in an unattended room in a 24/7 operating mode. A built-in power supervisor protects the device from freezing when there are voltage surges. We do not implement third-party resource-intensive operating systems into the device, we write the whole code on our own, and it is optimized as much as possible for this functionality.
A built-in webserverThe configuration and management of the device is carried out via a browser. You do not need any special software. It works in any OS (Windows, Linux, Mac).
Connection to the Ethernet network, a static IP addressThe device is connected to an ordinary office Ethernet network, to any free Ethernet port on the switch. If you publish the IP address of the device on the Internet, you can control the sockets of the device from anywhere in the world.
2 Ethernet ports on the device caseThey allow using one port for connecting this device to an Ethernet switch, and the second port can be used as a regular Ethernet port for connecting any Ethernet devices, including other NetPing devices, in a "chain". This can be especially useful when all the switch ports are already busy: NetPing can be plugged into a switch, and a network device can be connected to a free NetPing Ethernet port.
Authorization and access restrictionAccess to the web interface of the device is protected by a user-configurable login and password. In order to get to the web interface of the device, you need to log in. In addition, you can restrict access to the device, leaving the ability to access only from a specific IP subnet.
SNMP supportSNMP protocol is widely used in systems for collecting information about network equipment. The device supports commands for managing and receiving information from sensors via the SNMP protocol. The device easily integrates with such network monitoring systems as Zabbix, PRTG Network Monitor, OpenNMS, Nagios, Cacti, The Dude, Monit, and similar ones, which receive information about the status of sensors connected to the device via the SNMP protocol.
Syslog supportThis protocol, together with the special software on the server, can be used to collect text logs (logs) of the operation of various devices in the network including NetPing devices. This can be very useful for collecting and analyzing statistics.
URL-encoded commands supportThe device supports sockets control and receiving information from sensors using special HTTP commands. These commands allow you to control the device from any web page developed by the user including those taken from any mobile application.
Built-in firmware updatingThe device supports firmware update via the device web interface. We periodically release firmware updates. They are free.
Non-volatile event logAll events (switching devices on and off, information from sensors) are stored in the non-volatile memory. The information will be stored even in case of a power failure.
Time synchronization with NTP serversThe device does not have a built-in non-volatile clock, that is why it uses constant synchronization with time sources on the Internet (NTP servers). The synchronization with accurate time sources is essential for the “Schedule” function to work and for the correct timestamps in the device event log.
More options in case of using some additional devices with Input+Relay 254R304:Sending SMS notifications and executing SMS commands using NetPing SMS
When you use an additional NetPing SMS device, it becomes possible to send SMS notifications about sensor triggering via a hardware GSM modem built inside it. It is also possible to receive SMS commands and execute them by the device. NetPing SMS is a gateway between SNMP commands transmitted over the Ethernet/Internet network and a GSM network where SMS notifications are transmitted. One NetPing SMS device can work with many other NetPing devices, providing them with the ability to send SMS notifications and execute SMS commands.
Connections controlled sockets of electric power NetPing AC/DIN.If you need to control the power supply of external load, you can connect an externally controlled power socket NetPing AC / DIN to the device. This socket allows you to turn on, turn off and reload the power supply of the external load of 100..240V 50/60Hz, with a current of up to 10A.
If you need to control the power supply of external load with increased power, you can connect a power relay to the device from the section of accessories for NetPing devices. This allows you to turn on, turn off and reload the power supply of the external load of 250V with a current of up to 15A.
Connecting a power relay to control power lines
Basic parameters | |
built-in battery for a notification system | No |
Static IP and MAC address | Yes |
Firmware update | Yes, by user |
Ethernet port | 2 x 10/100 BASE-TX |
Fanless solution | Yes |
RS-232 port | No |
RS-485 port | No |
Sensors | |
Airflow sensors | Up to 4 sockets |
Built-in temperature sensor | Yes |
Input lines | 4 lines |
NetPing AC/DIN socket | Up to 4 sockets |
NetPing Supply Voltage Sensor 995S2 | Up to 4 sensors |
PIR detector | Up to 4 sensors |
Input-Output lines | No |
1-wire sensors support | Yes |
Temperature sensors | Up to 2 sensors |
Humidity sensors | Up to 2 sensors |
Door sensors | Up to 4 sensors |
IR transceiver | No |
Leakage sensors | Up to 4 sensors |
Smoke sensors | No |
Buzzer | Up to 4 buzzers |
Functionality | |
Built-in event log | Yes |
LOGIC support | Yes |
Time synchronization via NTP | Yes |
Email notifications | Yes |
SMS notifications | No |
SMS commands | No |
SNMP control | Yes, SNMP v1 |
SNMP trap | Yes, SNMP v1/v2 |
Syslog support | Yes |
Telnet | No |
URL-encoded commands | Yes |
Physical parameters | |
Electric power | 12V DC, PoE-B 12–50 V |
Power consumption | up to 13W |
Device suit | a device, mating part of a terminal block 15EDGK-3.5-7P, hangers or a plate for flat panel mounting, a bracket for a DIN rail, a quick start guide |
Power plug | DJK-02A D=2.1mm or POE-B 12-50В connectors |
Device dimensions | 103 х 115 х 33 mm |
Operating temperature range | -30°C .. 50°C |
Weight | 330 g |
POE power | Yes |
Firmware upgrade | |
DKSF_564.1.4.E-3.npu | Download |
DKSF_568.1.2.E-4.npu | Download |
Additional technical files | |
DKSF_564.1.4_MB.mib | Download |
DKSF_568.1.2_MB.mib | Download |
DKSF_564.1.4_OL.oidlib | |
DKSF_568.1.2_MB.oidlib | |
Zabbix 5.0-5.2 NetPing Universal Template | Download |
User guide | |
Technical documentation NetPing Input+Relay 254R304 | Go to |
Certificates | |
B3 series DC without GSM modem - ANT220127126E -EMC Certi.original.pdf | Download |
B3 series DC without GSM modem - ANT220127126R -RoHS Certi.original.pdf | Download |