W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

IP-Watcher 2x2 Digital

  • IP-Watcher 2x2 Digital easy start

The IP-Watcher generates an alarm when network components no longer respond.

Devices are watched by means of cyclical pinging or regular opening and closing of a TCP port. When a fault occurs, switch an alarm output or report the event over the network, e.g. via email or SNMP trap. In addition, the IP Watcher provides an SNTP service through which any network station can obtain the current time information.


One box for any application:

  • Small System
    Using the integrated Web server the IP-Watcher can be configured directly through the browser. It is also possible to monitor the configured alarms and acknowledge pending messages using the Web interface. Additional functions, such as sending email messages, enables implementation of autonomous applications out-of-the-box.
  • Big System
    Standard protocols and interfaces such as OPC, SNMP and SYSLOG enable trouble-free integration into existing systems (e.g. monitoring via SNMP with Nagios). The digital outputs can be used to report faults even on already present automation devices having digital inputs.

General information:

  • Network connection
    • 10/100BaseT autosensing, RJ45
  • PoE (Power over Ethernet)
    • Phantom power using data pairs
    • Power provided by unused wire pairs (spare-pair power)
  • Using external power supply
    • Supply from external power supply possible as an alternative to PoE
  • Web-based management
    • Configuration of the system parameters
    • Self-refreshing view of the alarm, input and output states
    • Acknowledge pending alarms from the browser
    • Definition of alarm conditions
  • 4 freely configurable alarms
    • Triggers when configured IP addresses or host names cannot be reached
    • Monitoring of up to 250 IP addresses possible
    • Alarm options: E-mail, SNMP trap, UDP and TCP client, Syslog messages, FTP
    • Optional acknowledgment via digital input or using the Web interface
  • 2 digital outputs in 6V-30V industry standard for local alarm issuing
    • Current sourcing FET
    • Short-circuit-protected by virtue of thermal safety fuse
  • 2 digital inputs in industry standard usable as acknowledgment input
    • Type 1, current sinking in accordance with IEC 1131-2
    • Protected against polarity reversal
  • SNTP time server
    • Current time information is passed using SNTP (Simple Network Time Protocol)
    • Service provider for any requesting network station
  • Online Web interface language selection
    • Deutsch
    • English
  • Conforms to standards both in office and industrial environments:
    • High noise resistance per EN 61000-6-2
    • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3
  • 5 year guarantee

Technical data

  • Network:
  • Alarms:
    • 4 alarms for local and/or remote messaging
  • Response times:
    • Data and switching traffic: typically 12 ms
  • Digital outputs:
    • 2 x Digital Out 6V-30V, 500mA
    • Short-circuit-protected
  • Digital inputs:
    • 2 x Digital In,
    • max. input voltage +/-30V
    • protected against reverse connection within this range
    • Switching threshold 8V +/- 1V
    • "On" current = 2.2 mA
  • Adapters:
    • 2x screw terminal for power (alternative to POE)
    • 6-point screw terminal for IOs
  • Galvanic isolation:
    • Digital-IO’s - Network: min. 1000 V
  • LEDs:
    • - Status of the network connection
    • - Current IO state
    • - Device status
  • Power supply:
    • Power-over-Ethernet (PoE) or via screw terminal with
    • DC 18V-48V (+/-10%) and AC 18Veff-30Veff (+/-10%)
  • Storage temperature:
    • -25°C-70°C
  • Operating temperature:
    • 0°C - 60°C
  • Housing:
    • Plastic housing for DIN rail mount
    • 105 x 75 x 22mm (lxwxh)
  • Weight:
    • approx. 140g
  • Scope of delivery:
    • 1 x IP-Watcher 2x2 Digital incl. Alarm-Management-Software
    • 1 x Quick Guide
    • 1 x W&T product CD



Alarm status

Monitor the status of the configured alarms directly from the browser.
Alarm acknowledgments can be performed directly on the Web interface by mouse-click.
The display is self-refreshing and therefore always current.

In-/output status

Additional overview of the status of the in- and outputs,
as well as of the set alarms.