Multitel IS3 User manual

iS
3
Intelligent Small Site Supervisor
User’s Guide

PROPRIETARY INFORMATION
iS3
Intelligent Small Site Supervisor
Version 1.4
User’s Guide
The information contained in this document is the property of MULTITEL INC.
Except as specifically authorized in writing by MULTITEL INC., the holder of this
document shall:
1. Keep all information contained herein confidential and shall protect same in whole
or in part from disclosure and dissemination to all third parties and;
2. Use the same for operating and maintenance purposes only.
2003 MULTITEL Inc.
Printed in Canada , 2003-06

iS3– intelligent Small Site Supervisor - User’s Guide
Table of Contents
TABLE OF CONTENTS..................................................................................................................... 2
Tables .............................................................................................................................................. 5
Figures............................................................................................................................................. 5
ABOUT…....................................................................................................................................... 7
CERTIFICATION INFORMATION .................................................................................................... 7
LIMITED WARRANTY POLICY ON MULTITEL HARDWARE ......................................................... 8
GENERAL INFORMATION............................................................................................................... 9
PURPOSE .......................................................................................................................................... 9
APPLICATION ................................................................................................................................... 9
CHAPTER 1 .............................................................................................................................. 11
INTRODUCING THE IS3................................................................................................................. 11
GETTING STARTED ........................................................................................................................ 11
PPP Connection Procedure (Windows ’98) .................................................................................. 12
PPP Connection Procedure (Windows 2000)................................................................................ 13
Baud Rate Detection Procedure..................................................................................................... 15
Changing the PPP Connection Baud Rate (Windows 2000)........................................................ 16
Changing the PPP Connection Baud Rate (Windows ‘98)........................................................... 16
CHAPTER 2 .............................................................................................................................. 17
CHANNELS .................................................................................................................................... 17
DIFFERENT TYPES OF CHANNELS .................................................................................................. 17
Real Channels................................................................................................................................ 18
Derived Channels .......................................................................................................................... 18
Analog Channels ........................................................................................................................... 18
Binary Channels ............................................................................................................................ 19
CHANNEL RETURNED VALUES ...................................................................................................... 20
CATEGORIES .................................................................................................................................. 20
ALARMS AND ALARM PRIORITY.................................................................................................... 22
CHAPTER 3 .............................................................................................................................. 23
DETAILED CHANNEL DESCRIPTION............................................................................................ 23
CHANNELS ..................................................................................................................................... 23
CHANNEL CONFIGURATION........................................................................................................... 23
BINARY CHANNEL CHARACTERISTICS .......................................................................................... 23
Binary Channel Returned Values ..................................................................................................23
Common Binary Channel Parameters ........................................................................................... 24
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iS3– intelligent Small Site Supervisor - User’s Guide
Binary Channel Occurrence Counter............................................................................................. 24
ANALOG CHANNELS CHARACTERISTICS ....................................................................................... 25
Analog Channel Returned Values ................................................................................................. 25
Common Analog Channel Parameters .......................................................................................... 25
CHANNEL DESCRIPTION – BY TYPE............................................................................................ 26
REAL CHANNELS ........................................................................................................................... 26
Binary Input Channels................................................................................................................... 26
Binary Output Channels ................................................................................................................ 28
Analog Input Channels.................................................................................................................. 29
Analog Output Channels ............................................................................................................... 30
Binary LED Channels ................................................................................................................... 30
DERIVED CHANNELS ..................................................................................................................... 31
Binary Threshold Channels ........................................................................................................... 31
Binary Delay Channels.................................................................................................................. 34
Binary Equation Channels............................................................................................................. 35
Binary Manual Channels ............................................................................................................... 36
Analog Hold Channels .................................................................................................................. 37
Analog “Binary Occurrence Counter” Channels........................................................................... 39
Analog Computation Channels...................................................................................................... 40
Analog Polynomial Channels........................................................................................................ 41
Analog Manual Channels .............................................................................................................. 42
Analog Binary Count Channels..................................................................................................... 42
SYSTEM CHANNELS ....................................................................................................................... 43
Introduction to System Channels................................................................................................... 43
System Channels Specifics............................................................................................................ 43
System Channels List .................................................................................................................... 43
Using System Channels................................................................................................................. 44
USERS AND USER CHANNELS ........................................................................................................ 44
User Channels................................................................................................................................ 44
User Definition .............................................................................................................................. 45
Maximum Number of Users.......................................................................................................... 45
CHAPTER 4 .............................................................................................................................. 47
MESSAGING .................................................................................................................................. 47
BINARY AUTONOMOUS MESSAGES ............................................................................................... 47
SCHEDULES.................................................................................................................................... 48
MESSAGE TEMPLATES ................................................................................................................... 48
USING AUTONOMOUS MESSAGES ................................................................................................. 50
CHAPTER 5 .............................................................................................................................. 51
DATA LOGGING ............................................................................................................................ 51
BINARY DATA LOGGING (HISTORY FILE) ..................................................................................... 51
Using Binary Data Logging Files.................................................................................................. 51
History File Content ...................................................................................................................... 51
History File Reset.......................................................................................................................... 52
ANALOG DATA LOGGING .............................................................................................................. 53
Periodic File .................................................................................................................................. 53
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iS3– intelligent Small Site Supervisor - User’s Guide
Detailed File .................................................................................................................................. 53
Histogram File............................................................................................................................... 54
CHAPTER 6 .............................................................................................................................. 55
INTERFACES TO THE IS3............................................................................................................... 55
ACCESS LEVELS............................................................................................................................. 55
Using Access Levels...................................................................................................................... 55
WEB INTERFACE ............................................................................................................................ 55
Using the Web Interface................................................................................................................ 57
FTP INTERFACE............................................................................................................................. 61
Using the FTP Interface................................................................................................................. 61
SNMP INTERFACE ......................................................................................................................... 63
CHAPTER 7 .............................................................................................................................. 65
PASS-THROUGH............................................................................................................................ 65
PASS-THROUGH DEFINITION ......................................................................................................... 65
HOW DOES PASS-THROUGH WORK............................................................................................... 66
SPECIFIC PASS-THROUGH PARAMETERS ....................................................................................... 66
CONFIGURING PASS-THROUGH ..................................................................................................... 67
Using the Serial Ports Involved in Pass-through........................................................................... 67
CHAPTER 8 .............................................................................................................................. 69
CONFIGURING THE IS3................................................................................................................. 69
CHAPTER 9 .............................................................................................................................. 71
INSTALLING THE IS3..................................................................................................................... 71
CHAPTER 10 ............................................................................................................................ 73
MAINTENANCE ............................................................................................................................. 73
BACK-UP BATTERY........................................................................................................................ 73
CALIBRATION ................................................................................................................................75
TROUBLESHOOTING....................................................................................................................... 75
Troubleshooting with communication........................................................................................... 75
Troubleshooting without communication...................................................................................... 79
CHAPTER 11 ............................................................................................................................ 81
CONTACTING MULTITEL.......................................................................................................... 81
CHAPTER 12 ............................................................................................................................ 83
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iS3– intelligent Small Site Supervisor - User’s Guide
APPENDIX A.................................................................................................................................. 83
CHAPTER 13 ............................................................................................................................ 85
INDEX ............................................................................................................................................ 85
Tables
Table 1 - Returned values........................................................................................................................... 20
Table 2 - Returned values for analog channels .......................................................................................... 25
Table 3 - Access levels specifics ................................................................................................................ 45
Table 4 - CSV file imported into Excel...................................................................................................... 52
Table 5 - Binary channel truth table ........................................................................................................... 83
Figures
Figure 1 - iS3functional overview ............................................................................................................. 10
Figure 2 - Front Panel................................................................................................................................. 12
Figure 3 - Front Panel................................................................................................................................. 13
Figure 4 - Channel matrix .......................................................................................................................... 17
Figure 5 - Web page and categories ........................................................................................................... 21
Figure 6 - Dry contact binary channel schematics ..................................................................................... 26
Figure 7 - Level binary channel schematics ............................................................................................... 27
Figure 8 - Binary threshold activation schematics ..................................................................................... 32
Figure 9 - Binary threshold deactivation schematics.................................................................................. 33
Figure 10 - Analog hold channel schematics ............................................................................................. 38
Figure 11 - Web Interface .......................................................................................................................... 56
Figure 12 - Alarms Page............................................................................................................................. 58
Figure 13 - Categories Menu...................................................................................................................... 58
Figure 14 - System Page............................................................................................................................. 59
Figure 15 - File Download Page................................................................................................................. 59
Figure 16 - Calibration Page ...................................................................................................................... 60
Figure 17 - Test Mode................................................................................................................................ 61
Figure 18 - Pass-through schematics.......................................................................................................... 65
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iS3– intelligent Small Site Supervisor - User’s Guide
About…
Certification Information
RESIDENTIAL EQUIPMENT
CLASS B DIGITAL DEVICE
INFORMATION TO USER
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for Class B
Digital Device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures.
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
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iS3– intelligent Small Site Supervisor - User’s Guide
Limited Warranty Policy on
Multitel Hardware
MULTITEL represents, warrants and covenants to Buyer that, for a period of twenty-four
months after shipping date of such Product, the Product when installed and used in accordance
with specifications described in user manuals, technical materials and related writings
published by MULTITEL with respect to such Product, shall be free from defects in materials
and workmanship.
During the warranty period, MULTITEL or its designated service representative
shall repair, or at its option, replace any Product that is confirmed to be defective
by MULTITEL. Product repaired under warranty shall be warranted for six (6)
months or for the non-expired portion of the warranty applying to the Product,
whichever is longer. Buyer shall promptly notify MULTITEL of any Product’s
defect during the warranty period.
This warranty shall be null and void if the Product has been damaged by accident,
misuse or misapplication or has been modified or altered by Buyer without
MULTITEL’s express written acceptance of Buyer’s modifications for warranty
purposes.
Upgrades, new releases and product modifications requested by the customer are
not covered by this guarantee.
Administrative charges will be billed for any unit returned on which no defect is found.
Notwithstanding the foregoing, MULTITEL’s liability for breach of any warranty
or covenant set forth in this document shall be limited as follows:
1. The duty to indemnify provided above may be asserted only by MULTITEL;
2. MULTITEL’s sole obligations arising due to a breach of the Product Performance
Warranty provided above shall be to:
cause the Product to perform substantially in accordance with Product specifications described
in the user manuals, technical materials and related writings published by
MULTITEL with respect to the Product, or if that is not commercially practical, then
reimburse the Product price charged to Buyer, plus the cost of shipment of such Product paid
by Buyer, if any;
3. THE LIABILITY OF MULTITEL FOR DAMAGES UNDER THIS DOCUMENT,
OTHER THAN FOR PERSONAL INJURY, RELATING TO ANY ALLEGEDLY
EFFECTIVE PRODUCT, SHALL, UNDER ANY LEGAL OR EQUITABLE
THEORY, BE LIMITED TO THE ACTUAL PRICE PAID BY BUYER FOR SUCH
PRODUCT AND SHALL IN NO EVENT INCLUDE INCIDENTAL,
CONSEQUENTIAL OR SPECIAL DAMAGES OF ANY KIND (EVEN IF
MULTITEL IS NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.
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iS3– intelligent Small Site Supervisor - User’s Guide
4. THERE ARE NO WARRANTIES OTHER THAN THOSE WHICH APPEAR ON
THIS DOCUMENT AND IMPLIED WARRANTIES OF FITNESS FOR A
PARTICULAR PURPOSE OR OF MERCHANTABILITY ARE HEREBY
DISCLAIMED.
NOTE:
Some states or provinces do not allow the exclusion or limitation of
consequential damages, so the above limitation or exclusion may not apply to
you.
General Information
Purpose
This document is intended to present the functions, applications and basic concepts of
the iS3. An Installation manual is also provided with this product.
Application
The iS3is a very versatile monitoring and control unit tailored for space-sensitive
applications such as cabinets.
• Up to 28 real channels without expansion board and 44 with expansion board can be
configured to detect harmful conditions, take measurements, and control local
equipment;
• An almost unlimited number of derived channels can also be configured to process
measurements or create complex alarm messages;
• Data logging files record information about your site, helping to trend and analyze
site behavior;
• An easy-to-use Web browser-based interface that makes getting information a breeze.
• Support of SNMP with full HP OpenView integration kit.
• Pass-through function, offering an embedded 2 port terminal server.
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iS3– intelligent Small Site Supervisor - User’s Guide
I/O Interfaces
File System
------------
Configuration files
Firmware files
------------
Data Logging files
Data Acquisition &
Channel Engine Process
Interface Alamrs &
Messages
System
Channels
Real & Derived
Channels
FTP HTTP SMTP SNMP
TCP UDP
IP
Ethernet
PPP
Serial & modem Serial & modem
Figure 1 - iS3functional overview
Since the iS3is targeted for telecommunication applications, its internal power supply
will accept the standard –48 VDC or +24 VDC, depending on the model.
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iS3– intelligent Small Site Supervisor - User’s Guide
CHAPTER 1
Introducing the iS3
The iS3has all the traditional features of an RMU (remote monitoring unit), despite
its small size and low power consumption. In fact, the iS3possesses more features
than most RMU, including extended connectivity provided by a standard Ethernet
port and an optional internal high-speed modem.
Data acquisition is done using simple binary or more complex analog inputs. Using
the latter type, measurement of voltage, current, temperature, humidity, and other
parameters is done using a 12-bit analog to digital converter.
The iS3offers an embedded Web server, providing a very easy means to view real-
time data, download data logging files, calibrate the unit data acquisition channels,
etc.
The iS3also comes with an SNMP agent, SMTP support to send e-mails, an FTP
server to easily upload and download configuration and data logging files. A pass-
through function has been added in order to provide terminal server capability. This
means you can connect legacy devices to your IP network through the iS3.
Users and their access to the iS3can also be managed through the very unit. You can
define a high number of users, each having one of 3 possible user access levels,
allowing the management of users and the type of action they can perform while
using the iS3.
Using the LAMBDA (Logical And Mathematical Built-in Data Analyzer) engine, the
iS3provides real time data processing. A set of derived channels, through which you
configure unit behavior, allows you to build powerful custom applications that
further process and analyze acquired data.
Getting Started
The first and most important step once the equipment has been installed, plugged
and all proper connections have been made is to establish direct communication
between your PC and the iS3. There are two main protocols to communicate with
these units: the Ethernet and the PPP (point to point protocol).
Once the iS3 is installed, setting it ready to operate for the first time takes more than
just turning the unit on. The unit is delivered with a default IP address which does not
guarantee immediate communication between the unit and your PC because it is not
necessarily compatible with your network. Therefore, to have these two units
communicating through the same language, you will have to carry out, at least and
depending on your operating system, one of the following two procedures.
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iS3– intelligent Small Site Supervisor - User’s Guide
PPP Connection Procedure (Windows ’98)
To establish communication with the iS3 using Windows ’98:
5. Connect a DB9 serial cable from the RS-232 CRAFT DCE port on the iS3 front
panel to your PC.
Figure 2 - Front Panel
6. Determine the iS3 baud rate, see Baud Rate Detection Procedure.
7. Add a standard modem.
a) Follow the sequence: Start + Settings + Control Panel.
b) Click on Phone and Modem Options.
c) In the Modems tab, verify there is no Standard 33600 bps Modem already
installed. If you already have such modem installed, close this window and
continue with step 8.
d) Click on Add.
e) Check the Don’t detect my modem; I will select it from a list box.
f) Click on Next.
g) In the Manufacturers list, choose Standard Modem Types.
h) In the Models list, choose Standard 33600 bps Modem.
i) Click on Next.
j) Choose the port you want to use (Com 1, Com 2…) and click on Next.
k) Click on Finish.
l) In the Control Panel, double-click on Phone and Modem Options.
m) In the Modems tab, select Standard 33600 bps Modem and click on
Properties.
n) In the Maximum Port Speed section, choose the baud rate that corresponds to
the iS3(you must have already determined it on step 6).
o) Click on OK, then on Close.
8. Create a PPP Connection.
a) In your desktop, click on My Computer.
b) Click on Dial-up Networking + New Connection.
c) Name your connection iS3Direct Connection.
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iS3– intelligent Small Site Supervisor - User’s Guide
d) Select Standard 33600 bps Modem.
e) Click on Configure.
f) Click on OK + Next.
g) Type in the telephone number “555” + Next + Finish.
h) Right click on your connection and select Properties.
i) Uncheck the Use area code box.
j) Select the Network Management tab.
k) Uncheck all the available boxes except TCP/IP.
l) Select the Running Script tab.
m) Click on Run and search for the script provided by Multitel (Multitel iS3
PPP.scp).
n) Click on OK.
9. You are now ready to launch the connection; click on iS3 Direct Connection +
Connect.
10. If the connection is not successful, revise the connection procedure and the cables.
11. After the connection has been established, click on Start + Run.
12. In the Open text field, type “winipcfg” and then click on OK.
13. Take note of the IP address.
14. Open you Internet browser and type the IP address that you jotted down minus
ONE. As an example, if you found the following IP address: 192.68.10.11, the iS3
IP address will be 192.68.10.10.
At this point you should see the iS3 web page.
PPP Connection Procedure (Windows 2000)
To establish communication with the iS3 using Windows 2000:
1. Connect a DB9 serial cable from the RS-232 CRAFT DCE port on the iS3 front
panel to your PC.
Figure 3 - Front Panel
2. Determine the iS3 baud rate, see Baud Rate Detection Procedure.
3. Add a standard modem.
a) Follow the sequence: Start + Settings + Control Panel.
b) Click on Phone and Modem Options.
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iS3– intelligent Small Site Supervisor - User’s Guide
c) In the Modems tab, verify there is no Standard 33600 bps Modem already
installed. If you already have such modem installed, close this window and
continue with step 8.
d) Click on Add.
e) Check the Don’t detect my modem; I will select it from a list box and click
on Next.
f) In the Manufacturers list, choose Standard Modem Types.
g) In the Models list, choose Standard 33600 bps Modem and click on Next.
h) Choose the port you want to use (Com 1, Com 2…) and click on Next.
i) Click on Finish.
j) In the Control Panel, double-click on Phone and Modem Options.
k) In the Modems tab, select Standard 33600 bps Modem and click on
Properties.
l) In the Maximum Port Speed section, choose the baud rate that corresponds to
the iS3(you must have already determined it on step 0).
m) Click on OK, then on Close.
4. Create a PPP connection.
a) Click on Start + Settings and double click on Network and Dial-up
Connections.
b) Double click on Make New Connection and click on Next.
c) Choose Dial-up to the Internet and click on Next.
d) Choose I want to set up my Internet connection manually, or I want to
connect through a local area network (LAN), then click on Next.
e) Choose Iconnect through atelephone line and amodem, then click on
Next.
f) If you have only one modem installed, do the next step; if not, choose the
Standard 33600 bps Modem that you already created and click on Next.
g) Type the telephone number “555”.
h) Uncheck the Use area code and dialing rules option, then click on Next.
i) Do not enter any password, click on Next.
j) Click Yes on the warning.
k) Name your PPP connection iS3 Direct Connection, then click on Next.
l) Answer No to the question: Do you want to set up an Internet mail account
now? Then, click on Next.
m) Do not check the To connect to the Internet immediately, select this box
and click Finish box. Click on Finish.
n) In the Network and Dial-up Connections, right-click on iS3 Direct
Connection and select Properties.
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iS3– intelligent Small Site Supervisor - User’s Guide
o) Select the Security tab.
p) Select Run script.
q) Click on Browse and search for the script provided by Multitel (Multitel iS3
PPP.scp).
r) Select the Networking tab and click on Settings.
s) Uncheck the Software Compression option and click on OK.
t) Select Internet Protocol (TCP/IP)
u) Click on Properties + Advanced.
v) Uncheck the Use default gateway on remote network and click OK in the
following three dialog boxes.
w) Click on Start + Settings + Control Panel + Internet Options.
x) Select the Connections tab.
y) In the Dial-up and Virtual Private Network settings set up the default
connection, which you must have previously jotted down, and select the Never
dial a connection, dial whenever option. Click on OK to exit.
5. Now you are ready to establish the connection, to do that: click on Start + Settings
+ Network and Dial-up Connections + iS3 Direct Connection and then on Dial.
6. If the connection is not successful, check the connection procedure and the cables.
7. After the connection has been established, double-click on it, select the Details tab
to find the server IP address.
8. Launch your Internet browser and type the server IP address, press Enter. You
must access the iS3 web page.
Baud Rate Detection Procedure
The iS3 baud rate is generally 115200 bps. If you have access to the iS3 configuration
files, use the iS3Configuration Tool software to find out the iS3 RS-232 CRAFT
DCE port baud rate. The following procedure is useful in the case you don’t have
access to the configuration files and you need the baud rate to establish the
connection.
1. Make sure there are no open applications in your PC.
2. Launch the HyperTerminal application.
a) Click on Start + Run.
b) In the Open text field, type “Hypertrm.exe” and click on OK.
3. Name your connection, ex.: iS3 .
4. In the Connect using tab, choose the PC serial port you want to use to
communicate with the iS3 (usually Com 1or Com 2) and click on OK.
5. In the Port Parameters window, change the bits per second to 115200 and click on
OK.
6. Click on the main window to select it.
7. On your keyboard, press Enter four times. If you see the equipment identification
on the display, it means you have found the good baud rate. Then, the procedure is
finished.
8. If not, click on the Call menu, then select Disconnect.
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iS3– intelligent Small Site Supervisor - User’s Guide
9. Click on the File menu, then Properties.
10. In the Connect using list of the Connect to tab, select the right port and click on
Configure.
11. Change the Bits per second to the immediate lower available value and click on
OK.
12. In the Port Parameters window, click on OK.
13. Click on the main window to select it.
14. On your keyboard, press Enter four times. If you see the equipment identification
on the display, it means you have found the good baud rate.
15. Take note of the baud rate and close the window.
NOTE:
You should continue to try this procedure with the immediate lower value until you find the
correct baud rate.
Changing the PPP Connection Baud Rate (Windows 2000)
To change the PPP connection baud rate for Windows 2000:
1. Click Start + Settings + Network and Dial-up Connections.
2. In the Network and Dial-up Connections window, right-click on your connection
and select Properties.
3. In the General tab, click on Configure.
4. In the Maximum speed (bps) list, choose the desired baud rate and click on OK.
5. In the Properties windows, click on OK.
6. Click on Start + Settings + Control Panel.
7. In the Control Panel window, double-click on Phone and Modem Options.
8. Click on the Modems tab.
9. Double-click on the Modem standard 33600 bps.
10. Change the maximum speed to match the one previously set in the Network and
Dial-up Connections window and click on OK.
11. In the Phone and Modem Options window, click on OK.
Your connection is now ready to be used with the new baud rate.
Changing the PPP Connection Baud Rate (Windows ‘98)
To change the PPP connection baud rate for Windows ‘98:
1. On your desktop, click on My Computer.
2. Double-click on Dial-up Networking.
3. Right-click on your connection and select Properties.
4. In the General tab, click on Configure.
5. In the Maximum speed section, select the desired baud rate from the list and click
on OK.
6. In the Properties window, click on OK.
Your connection is now ready to be used with the new baud rate.
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iS3– intelligent Small Site Supervisor - User’s Guide
CHAPTER 2
Channels
Channels are a central concept to the iS3. Channels are used to retrieve information,
filter it, and raise alarms when any abnormal condition occurs.
For example, when connected to sensors, detectors or other measurement equipment,
channels can be used to monitor temperature in a telecommunications site, to detect
smoke, or to calculate the power dissipated by the load.
Different Types of Channels
Channels in the iS3can be real or derived, analog or binary.
Channels are mainly differentiated by the type of information they produce (the
output of the channel). This means that a channel called a “binary channel” outputs a
binary value, whereas an “analog channel” outputs an analog value.
Moreover, channels are also differentiated by the source of the information they use.
Real channels are physically connected to equipment in the telecommunications site,
while derived channels use information from other channels; therefore, they are not
directly connected to a physical source in the site.
Channels MUST be
1. Analog OR Binary,
AND
2. Real OR Derived
REAL DERIVED
ANALOG Real analog channel Derived analog channel
BINARY Real binary channel Derived binary channel
Figure 4 - Channel matrix
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iS3– intelligent Small Site Supervisor - User’s Guide
Real Channels
Real channels are the most commonly known type of channels in remote monitoring
and site management equipment. A real channel in the iS3is connected to a physical
source, such as a detector activating a simple contact closure or an accessory
connected to a voltage source to be measured.
A real channel is associated with a connector at the back of the iS3, where the meter,
detector or equipment is plugged in.
For example, a real channel can be connected to batteries to monitor their voltage, to
a motion detector to know when someone is in your site, or to a local generator set to
remotely or automatically control it in case of an AC power failure.
WARNING:
Unused pins in the J1 connector must be left unconnected since they are not protected against
high voltage, e.g. –48VDC and permanent damage to the iS3may occur.
WARNING:
The binary output loads must preferably be resistive and must not exceed 0.5A @60VDC.
Inductive loads must use protection diodes to prevent inductive voltage spikes when loads are
de-energized.
Real channels may return one of two types of information: binary information or
analog information. That is, binary channels return only binary information, while
analog channels return only analog information.
Derived Channels
Derived channels are also known as computed channels. A derived channel is not
connected to a physical source in your telecommunications site. It generally uses data
from other channels in the iS3, real or derived, to create a series of combinations of
information to actually suit your needs.
Derived channels are used to process information from any other channel in your
device. For example, a derived channel can be used to detect when battery voltage
exceeds acceptable limits, to compute the power consumed by the load, or to
calculate the difference between battery and ambient temperature.
Depending on the type of channel analog or binary, derived channels may return two
types of information: binary information or analog information. That is, binary
channels return only binary information, while analog channels return only analog
information.
Analog Channels
Analog channels can be real or derived. These channels provide an analog value. Any
analog channel may be used as the input for any other channel whose input is an
analog value.
Real analog channels are often connected to some kind of transducer (e.g.
temperature probe) that produces an analog signal. These channels read, digitize and
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