W&T IP-Watcher 2x2 Digital PoE User manual

W&T
Manual
IP-Watcher 2x2 Digital PoE
Typ IP-Watcher 2x2 Digital
PoE
Modell #57655
Release EN 3.19 08/2010 PA

W&T
© 08/2010, Wiesemann & Theis GmbH
Microsoft, MS-DOS, Windows, Winsock und Visual Basic are
registered trademarks of Microsoft Corporation.
Subject to errors and changes:
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used without verification. Please inform us of any mistakes or
misunderstandings so that we can detect and eliminate them
as quickly as possible..
Carry out work on and with W&T products only if it is described
here and you have fully read and understood the manual.
Unauthorized actions can result in hazards. We are not liable
for the consequences of unauthorized actions. When in doubt,
please contact us or your dealer first!

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Contents
1. Introduction ..................................................................... 8
2. Startup ............................................................................. 9
2.1 Supply voltage ................................................................ 9
2.1.1 External supply voltage ................................................9
2.1.2 Voltage supply using PoE ............................................10
2.2 Network connection ...................................................... 10
2.3 Wiring the inputs........................................................... 11
2.4 Wiring the outputs ........................................................ 12
2.5 Assigning the IP address using Wutility ..........................13
2.6 Automatic IP address assignment ..................................15
2.6.1 Activating/deactivating assignment procedures ...........16
2.6.2 System name .............................................................16
2.6.3 Lease-Time ................................................................ 16
2.6.4 Reserved IP addresses ................................................17
2.6.5 Dynamic IP addresses ................................................. 17
2.7 Language selection ....................................................... 18
2.8 Assigning the basic network parameters .........................19
3 Operation and Monitoring from the Browser .......................25
3.1 Addresses .................................................................... 25
3.2 Homepage ....................................................................25
3.3 User page ..................................................................... 28
3.4 Hiding and showing the configuration menu................... 30
3.5 Login and Logout .........................................................31
4 Alarms ............................................................................34
4.1 IP Watch List .................................................................35
4.1.1 Insert entry ................................................................ 36
4.1.2 Automatic insertion by scanning ................................. 37
4.1.3 Editing entries ............................................................38
4.1.4 Deleting..................................................................... 38
4.1.5 Deleting the IP Watch List ............................................ 38
4.2 Configuring alarms ....................................................... 38
4.2 Formulating message texts ............................................40
4.3 Local alarming .............................................................. 42
4.4 Alarming per e-mail .......................................................43
4.4.1 General settings .........................................................44

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4.4.2 Mail parameters and texts ........................................... 46
4.5 Alarming per SNMP trap ................................................. 46
4.5.1 General settings .........................................................47
4.5.2 SNMP parameters and texts ......................................... 47
4.6 Alarming per Syslog ...................................................... 48
4.6.1 General settings .........................................................49
4.6.2 Syslog parameters and texts ....................................... 49
4.7 Alarming per FTP........................................................... 49
4.7.1 General settings .........................................................50
4.7.2 FTP parameters and texts ............................................52
4.8 Alarming per TCP client ................................................. 52
4.9 Alarming per UDP client ................................................. 53
5 Basic settings .................................................................. 54
5.1 Device name .................................................................54
5.2 Local time setting .........................................................55
5.2.1 Time zone.................................................................. 55
5.2.2 Summertime .............................................................. 56
5.2.3 Device Clock .............................................................. 57
5.3 Automatic time setting using a network service ...............58
5.4 Activate SNTP time server .............................................. 59
5.5 Language ..................................................................... 59
5.6 HTTP-Port ..................................................................... 60
5.7 System traps per SNMP and SNMP basic configuration...... 61
5.8 System Messages per syslog .......................................... 62
5.9 Port settings - Inputs ..................................................... 63
5.10 Port settings - Outputs ................................................64
6 Troubleshooting and Testing ........................................... 66
6.1 Report ..........................................................................66
6.2 Check Config ................................................................67
6.3 Check Alarm .................................................................68
7 Documentation ................................................................70
7.1 Manual......................................................................... 70
7.2 Data sheet .................................................................... 71
7.3 Property .......................................................................72
8 Appendix........................................................................ 73
8.1 LEDs ............................................................................ 73
8.1.1 Power-LED.................................................................. 73

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8.1.2 Status-LED ................................................................. 73
8.1.3 Error-LED ................................................................... 73
8.2 Factory defaults ............................................................ 74
8.2.1 Web-Based Management .............................................74
8.2.2 Reset jumpers ............................................................74
8.3 Alternative IP address assignment .................................. 75
8.3.1 ARP command ........................................................... 75
8.3.2 RARP server (UNIX only) .............................................. 76
8.4 Firmware update ........................................................... 76
8.4.1 Current firmware ........................................................ 76
8.4.2 Firmware update over the network ...............................77
8.5 Up- and download ........................................................ 77
8.6 Technical data .............................................................. 79

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W&T IP-Watcher 2x2 Digital PoE
1. Introduction
The IP Watcher from W&T uses cyclical polling to monitor
network components. If a device no longer responds, this
status can be reported by triggering local or remote alarms.
Local alarms indicate non-response by switching a connected
consumer on one of the two digital outputs. A remote alarm is
set for example by email, FTP, SNMP or Syslog over a TCP/IP
network.
An individual acknowledgement can be configured for all
alarms. This is done either by wiring one of the digital inputs
on the device (hardware acknowledgement) and/or sending an
acknowledgement command via TCP/IP from the controller side
to the IP Watcher (software acknowledgement). An
acknowledgement ensures proper detection and handling of an
alarm situation by an operator.
An integrated Web server provides configuration pages for
setting the device parameters. Browser-based software is used
to operate and monitor the alarms, and can also be loaded from
the Web server of the IP Watcher into any browser. This software
is self-refreshing and indicates the status of the activated
alarms while offering the possibility of acknowledging pending
alarms.
Power can be supplied either via Power over Ethernet through
the network or from an external power supply.
The properties of the IP Watcher make it ideal for stand-alone
monitoring tasks. Switching an output when there is an alarm
can generate a local response, for example turning on a rotating
flashing beacon. An alarm sent over a network quickly reaches
even distant personal and prompts them to act. Network
alarming allows the use of an existing network infrastructure
and thereby makes it possible to send messages individually
and without additional cabling. Thanks to the built-in, browser-
based software, operation and monitoring are possible not only
in the Intranet, but also worldwide over the Internet.

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W&T IP-Watcher 2x2 Digital PoE
2. Startup
Just a few steps are needed to incorporate the IP-Watcher into
your network and get it running.
2.1 Supply voltage
The following describes the two methods of providing power
to the IP-Watcher.
The types of voltage supply described here provide only power
to the device. Wiring the in- and outputs requires an additional
power supply.
If the device is powered using PoE, connecting or dis-
1connecting an additional external power source while
the device is running may result in the IP-Watcher restarting.
2.1.1 External supply voltage
Connect a supply voltage of 18V...48V DC (+/-10%) or
18Veff...30Veff AC (+/-10%) to the terminal on the underneath
of the device. You may use power supplies sold by W&T or any
desired power supply which meets the technical requirements.
Power supply
Underside of the device with terminal for the external power supply

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W&T IP-Watcher 2x2 Digital PoE
The external supply voltage for the device is always
1required in networks not providing PoE, but may also be
used in PoE environments.
When powering with DC voltage, correct polarity is not required.
It is also possible to power the device with 12V DC. There
however you must take into account the very poor efficiency of
the power supply and the associated elevated current draw.
2.1.2 Voltage supply using PoE
The IP-Watcher is equipped for use in Power over Ethernet
environments per IEEE802.3af. The voltage is then provided by
the network infrastructure using the RJ45 terminal. The device
supports both phantom feed using data pairs 1/2 and 3/6 or
spare-pair power using the unused wire pairs 4/5 and 7/8.
To enable power management for the supplying components,
the IP-Watcher identifies itself as a Power Class 2 device with a
power draw of 3.84W to 6.49W.
With an external power supply the IP-Watcher can also
1be used in networks not providing PoE support.
2.2 Network connection
The IP-Watcher provides an IEEE 802.3 compatible network
connection on a shielded RJ45 connector. Pin assignments
correspond to an MDI interface (see figure), so that connection
to a hub or switch is made using a 1:1 wired and shielded patch
cable.
1=TX+/V+
2=TX-/V+
3=RX+/V-
4=V+
8=V-
7=V-
5=V+
6=RX-/V-
Data line
Spare-Pair-Supply
Phant msupply
Configuration of the RJ45 PoE network jack

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W&T IP-Watcher 2x2 Digital PoE
The factory default setting for the IP-Watcher on the network
side is for Auto-Negotiation. Data transmission speed and
duplex procedure are automatically negotiated with the
connected switch/hub and set appropriately.
The network connection is galvanically isolated to 1kV with
respect to the power supply as well as the digital IOs.
Thanks to the integrated Power over Ethernet technology, the
device can be supplied with the necessary operating voltage
through the network connection.
2.3 Wiring the inputs
The permitted input voltage range is +/-30V with respect to
reference ground.
The switching threshold of the inputs is 8V +/-1V. Lower
voltages are recognized as an OFF or 0 signal. Voltages higher
than 8V are evaluated by the IP-Watcher as an ON or 1 signal.
Input voltages between 7V and 9V should be avoided, since
their meaning may be ambiguous.
The following wiring example shows how two inputs are
controlled. It is important that both signals have the same
reference ground.
P wer
Netw rk
Status Err r
Outputs Vdd GND Inputs
1 2 + - 1 2
Vcc
AC/DC
e.g. 24V +
-
e.g. 18V ~
~
Controlling the two digital inputs

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W&T IP-Watcher 2x2 Digital PoE
If you need to use the inputs for monitoring the states of po-
tential-free contacts, the supply voltage for the unit can also
be used as the signal voltage. In this case you need to operate
the IP-Watcher with a DC voltage of 12V-30V.
2.4 Wiring the outputs
The two IP-Watcher outputs are current sourcing. The supply
voltage for the outputs may be between 6V and 30V DC and is
fed through the terminals Vdd and GND in the output terminal
area. The maximum switching current per output is 500mA.
When the outputs are switched using an inductive load (e.g. a
relay), a snubber diode should be used to protect them from
damage.
The outputs also have thermal overload protection and are
short-circuit protected.
P wer
Netw rk
Status Err r
Outputs Vdd GND Inputs
1 2 + - 1 2
Vcc
AC/DC
e.g. 18V ~
~
e.g. 24V +
-
Output wiring with separate power supply
When sizing the output supply voltage, the required current
should be taken into account. If the device is powered by a 12V-
30V external power supply whose capacity is also sufficient for
supplying the consumers connected to the outputs, the output
supply may likewise be connected to the device supply.
The range of the device supply voltage exceeds the
1range of the switchable output voltage. Use the device

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W&T IP-Watcher 2x2 Digital PoE
supply for supplying the outputs as well, but use no more than
30V for powering the device.
In the configuration you can set up, to give the power supply
of the IP-Watcher directly to the terminals Vdd and GND. In this
case an external supply for the IOs is not required. Powered
internally, both outputs can drive 150mA as maximum.
2.5 Assigning the IP address using Wutility
Once the hardware has been powered as described above using
either PoE or an external power supply, the IP address required
for operating in a TCP/IP network needs to be assigned. The
necessary values (IP address, net mask, etc.) can be obtained
from your system administrator.
The assigned IP address must be unique within the
1network.
There are several ways to assign the IP address. To make the
process as convenient as possible, we have developed the
WuTility program, which you can download from our homepage
http://www.wut.de. This procedure is described in the
following. A summary of possible alternatives can be found in
the Appendix to this manual.
Ensure that the PC you are assigning the IP address with is in
the same subnet as the IP-Watcher you are configuring. Both
devices must be connected to the network.
At startup the WuTility automatically searches the local network
for connected W&T network devices and displays them in an
inventory list. The scan procedure can be repeated as often as
desired by clicking on the Scan button.
Now select the IP-Watcher from the displayed list. If you have
more than one unconfigured W&T network devices in your
network, you can use the MAC address to create the relations-
hip between list entry and terminal device:

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W&T IP-Watcher 2x2 Digital PoE
WuTility with found W&T network device
Use the button IP address to go to the configuration dialog box.
There you enter the desired network parameters for the device.
Confirm your entry by clicking on the Next button:
Configuration dialog box for network parameters
In the following window you can activate the BOOTP or DHCP
client of the device for automatic IP address assigning:

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W&T IP-Watcher 2x2 Digital PoE
Configuration dialog box for address assigning
By clicking on the Next button the IP-Watcher is assigned the
entered network parameters. All the columns of the inventory
list in WuTility are filled with information. Clicking on the
Browser button opens your standard browser and you can see
the start page for the device.
2.6 Automatic IP address assignment
Many networks use either DHCP (Dynamic Host Configuration
Protocol) or its predecessor BOOTP, described in the following
section, for centralized and dynamic assignment of the network
parameters. The factory default setting is for DHCP activated in
your IP-Watcher, so that all you need to do in network
environments with dynamic IP address assignment is connect
the device to the network. The following parameters can be
assigned using DHCP:
.IP address
.Subnet mask
.Gateway
.DNS server
.Lease-Time

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W&T IP-Watcher 2x2 Digital PoE
To prevent unintended address assignments or address
1changes, we recommending deactivating DHCP and
BOOTP/RARP unless they are expressly used in the respective
network environment. W&T network devices with incorrectly
assigned IP addresses may be subsequently reconfigured using
the WuTility.
2.6.1 Activating/deactivating assignment procedures
The factory default setting is for DHCP activated. The following
options are available for deactivating, specifying a different
assignment procedure or for reactivating at a later time:
.WuTility: In the inventory list select the desired IP-Watcher
and click on the IP-Address button. In the first dialog box
you enter the network parameters you want to assign and
confirm by clicking on Next. In the following dialog box
activate the desired protocol for automatic IP address
assigning or turn this option off there. Click on Next to
apply the configured parameters to the device.
.Web-Based Management: Using Web-Based Management
you can alternatingly activate the protocols or deactivate
both of them. For detailed information please refer to the
section Assigning the basic network parameters.
2.6.2 System name
In order to support any later automated updating of the DNS
system by the DHCP server, the IP-Watcher identifies itself within
DHCP with its system name. The factory set name is IP-Watcher
2x2 Digital- followed by the last three places in the Ethernet
address. For example, the factory set system name of an IP-
Watcher having Ethernet address 00:c0:3d:01:02:03 is IP-
Watcher 2x2 Digital-010203. The system name of the device
can be changed using Web-Based Management.
2.6.3 Lease-Time
The lease time determined and conveyed by the DHCP server
specifies the time of validity of the assigned IP address. After
half the lease time has expired the IP-Watcher attempts to
extend the validity or update the address. If this is not possible
by the time the lease time expires, for example because the
DHCP server is no longer accessible, the IP-Watcher deletes its

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W&T IP-Watcher 2x2 Digital PoE
IP address and starts a cyclical search for alternate DHCP
servers in order to assign a new IP address.
If DHCP is activated, the remaining lease time together with the
current IP address in the menu branch
Home >> Doc >> Property
is displayed in seconds.
If after the assigned lease time has expired the DHCP
1server cannot be reached, the IP-Watcher deletes its IP
address. All existing TCP and UDP connections between the
device and other network devices are interrupted by this
action. To prevent situations of this type, we recommend
configuring the lease time in the DHCP server for infinite if
possible.
2.6.4 Reserved IP addresses
The IP-Watcher provides services which other devices (clients)
in the network can make use of as needed. To open a
connection they of course need the current IP address of the
IP-Watcher, so that in these application cases it makes sense to
reserve a particular IP address for the IP-Watcher on the DHCP
server. As a rule this is done by linking the IP address to the
worldwide unique Ethernet address of the device which can be
found on the housing sticker.
5xxxx [Typ]
EN=00c03d004a05
OK xxxxxx
Ethernet-Adresse
Ethernet address on sticker on the side of the housing
2.6.5 Dynamic IP addresses
Fully dynamic IP address assignment, whereby the IP-Watcher
receives a different IP address each time it restarts or after the
lease time has expired, only makes sense in network
environments having automatic cross-connection between the
DHCP and DNS services. In other words: When assigning a new

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W&T IP-Watcher 2x2 Digital PoE
IP address to the device, the DHCP server then automatically
updates the DNS system as well. The new IP address is
associated with the respective domain name. For detailed
information concerning your network environment, refer to your
system administrator when in doubt.
For time server queries, sending of e-mails or other client
applications where the device actively searches for the
connection to server services in the network, dynamic IP
addresses can also be used.
2.7 Language selection
The first time one of the controller pages(home.htm, user.htm)
is opened by the device‘s own Web server, you are prompted to
select the device language.
In the address bar of your browser enter the IP address of the
device or the IP address followed by the name of one of the
controller pages and send the query. On the loaded page select
the desired system language and confirm you selection by
clicking the OK button. This completes this configuration step,
and you are taken to the start page of the device.
Language selection at initial startup

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W&T IP-Watcher 2x2 Digital PoE
2.8 Assigning the basic network parameters
Open the start page of the IP-Watcher by entering the IP address
in the address bar of your browser and use the link Show menu
to show the configuration menu of the device. Alternately you
can also open the address
http://<IP address of the IP-Watcher>/index.htm
Here the configuration menu is already visible and does not
have to be manually shown.
Select the menu item Config/Login.
Configuration menu in the base state
You are now prompted to enter a password. By default no
password is assigned, so that you can simply click on the
Login button without entering a password. You are now logged
in with administrator rights.

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W&T IP-Watcher 2x2 Digital PoE
Login dialog
On the next page select the configuration path using the
profiles
Selection for profiles or Expert mode
Select the profile Basic network parameter and click on the
Highlight Profile button.