Can the TCW122B-WD monitor environmental conditions while performing watchdog tasks?

Omni Instruments Expert Response: Yes. Unlike other specialized versions, the TCW122B-WD supports a full 1-Wire interface for up to two temperature and/or humidity sensors. This allows the module to serve a dual purpose: automatically rebooting network gear while simultaneously monitoring server room climate.

How do the Analogue Inputs work on the IP Watchdog model?

Omni Instruments Expert Response: The module features two 0-60VDC analogue inputs. These can be used to monitor battery voltages in UPS systems or telecom power banks. You can configure SNMP traps to alert you if the voltage drops below a critical threshold, adding an extra layer of infrastructure monitoring alongside the ping-reboot function.

Can I trigger a reboot based on a temperature threshold instead of a ping failure?

Omni Instruments Expert Response: Yes. While its primary function is an ICMP (Ping) watchdog, the internal relays can also be configured to trigger based on 1-Wire sensor values or Analogue voltage levels. This makes it an ideal "failsafe" controller that can reboot a device if it stops responding OR if it begins to overheat.

What is the best way to wire a router for automated reboots?

Omni Instruments Expert Response: For a standard "Power Cycle," you should wire the router's power supply through the Common (COM) and Normally Closed (NC) terminals of the relay. This ensures the router has power by default; when the Watchdog detects a failure, it "opens" the relay briefly to cut power and force a hard reset.

TCW122B-WD IP Watchdog Monitoring Module

TCW122B-WD IP Watchdog Monitoring Module

TCW122B-WD is an IP Watchdog monitoring module, based on the TCW122 hardware. It has two digital and 2 analogue inputs, plus 1-wire sensor support for temperature and humidity sensor. Two relay outputs for remotely switching devices (offering both normally open and normally closed wiring options). The controller supports SNMP v1 as M2M protocol. It can also be used as a part of a small to medium SCADA systems for environmental monitoring of server rooms.

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Description

Description

The TCW122B-WD is a versatile IP monitoring module built for fail safe operation. It monitors the health of devices and networks by exchanging ICMP echo requests and replies (pings). When a ping fails to occur within a specified period, the module triggers a relay, enabling automated restarts of the monitored equipment.

Beyond its watchdog capabilities, the TCW122B-WD offers two digital and two analogue inputs, along with two flexible relays that support both normally open and normally closed connections. It can also generate SNMP traps based on changes in temperature, humidity, analogue voltage readings, and digital input states. Furthermore, the relays can be activated remotely through a web interface or SNMP commands, or automatically based on the success or failure of ping checks.

Features

Password protected, web-based configuration and control
2 digital inputs with ” dry contact” and “logic level” modes
2 analogue inputs with 0 to 60VDC range
2 relays with NO and NC contacts
1-Wire interface for up to 2 sensors Temp/Humidity
SNMP v.1 support, SNMP trap alerts
SNMP traps for alert conditions
HTTP and SNMP port changing
VLAN, MAC address filtering
ICMP watchdog monitoring
Remote firmware update

Applications

Ideal for self-healing network watchdog
All-in-One IT Maintenance Tool, monitoring device, digital inputs, 2 analogue inputs up to 60vDC plus temperatures and humidity via 1-wire sensors.
Watchdog monitoring of small and medium networks
Monitoring of temperature and humidity in server rooms, whilst being able to reset two non-responsive IP addresses
Control and management of ISP networks
Remote control of electric devices

The TCW122B-WD can sit “inline” with the power supply. It pings two devices constantly; if one stops responding, the watchdog “clicks” its relay, performing a hard reset, and brings your site back online in minutes without a site visit. No more, 2-hour drive just to flip a power switch.

Specifications

Analogue Input	0-60vDC
Digital Input	Non-Isolated Dry contact, Max 5.5vDC.
Relay Output	NO or NC contacts
Rating	3A @ 24VDC or 30VAC
Mechanical Endurance	10 million operations
1-Wire Interface	up to 2 temperature (TST1XX) or temperature/humidity (TSH2xx) sensors
Power Supply	10-14vDC
Power Consumption	200mA :@ 12vDC
Dimensions:	109 x 82 x 32mm
Weight	110g
Operating Temperature	-20 to -55°C (5-85%RH)
Warranty	3 Years

TCW Control Modules

TCW122B-RR: P2P Digital Mirroring.
TCW122B-WD: Automated IP Pinging/Rebooting.
TCW122B-CM: Sensor Monitoring & SNMP.

All of the above use identical casings, for the the Remote Relay Control Modules not every terminal is actually connected.

Product

Ref

Price

Product Description

TST100

£16.70

TST100 1-Wire Temperature Sensor. Suitable for a temperature range of -40 to +85°C. 8mm flat aluminum head probe head with mounting hole. IP65 rated with 1m of cable with soldered wires for direct connection to controller screw terminals.

TST100S

£16.02

TST100S 1-Wire Temperature Sensor. Suitable for a temperature range of -40 to +85°C. Stainless Steel cylindrical probe, 30mm long with a 6mm diameter. IP65 rated with 1m of cable with soldered wires for direct connection to controller screw terminals.

TSH202v4

£37.88

TSH202v4 1-Wire Compact Temperature and Humidity sensor. Band-gap temperature sensor with range -20 to +60°C with accuracy ±0.4°C, and capacitive humidity sensor with a range of 10-90%RH with ±3%RH accuracy. Sensor dimensions 45 x 16 x 10mm with 1m cable and flying tails. Power Supply 4.5 to 26vDC (5V @ 5mA).

TCW122B-WD

£74.41

TCW122B-WD IP Watchdog Monitoring Module with RJ45 Ethernet Port. Two Digital and Analogue Inputs, with 1-wire interface and Two Relay Outputs (NO/NC contacts). Power supply 10-14vDC.

omni instruments | sensors and data acquisition equipment

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TCW122B-WD IP Watchdog Monitoring Module

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