DPS Telecom NetGuardian 224A, D-PK-NG224-12003 User Manual

NetGuardian 224A

USER MANUAL

D-PK-NG224-12003

Visit ou r website at www.dpstelecom.com for the latest PDF manual and FAQ s.

May 30, 2017

D-UM-NG224

Revision History

May 30 , 2017

March 23 , 2017

October 24 , 2016

July 19, 2016

Apri l 27, 2015

March 10 , 2015

December 23, 201 4

November 18, 2014

November 22, 2013

November 13, 2013

November 8, 2 013

October 10 , 2013

October 4, 2013

Secure Web Feature

Added History L og Format and Operation Section

Added HVAC Monitor Mode

Push-to-talk f unction added

Timers Update

Minor Browser Updates

Updated User Analogs, minor edits

Updated Timers Page

Added Conditi onal Hal t, ~evalMt & corrected ~evalMn in Provisioning
Sensors

Added ~intCnt mode description

Fixed timing on ~evailMn mode to 15 sec

Modbus and Sensor clarifications

Sensor slot equation explanation, tables and ex amples

October 3, 2013

Septem ber 6 , 2013

August 20, 2013

August 15, 2013

August 14, 2013

This document contains propri etary information which is protected by copyright. All r ights are reserved. No part of this
document may be photocopied without pri or w ritten consent of DPS Telecom.

All software and manuals are copyri ghted by DPS Tel ecom . Said software and m anuals may not be reproduced, copied,
transmi tted or used to make a derivative work, by either mechanical, el ectronic or any other means in whole or in part, without
prior wr itten consent from D P S Telecom, except as required by United States copyright laws.

© 2017 DPS Telecom

Added images and instructions for Modbus functionality

Updated Images, Specifications, Shipping L ist & Misc. Details for G2

Updated Images & Misc. Detail s

Updated Specifi cations and Im ages

Initial Release

Notice

The material in this manual is for inform ation purposes and is subject to change without notice. DPS Telecom shall not be
liable for errors contained herein or consequential damages in connection with the furnishing, perform ance, or use of this
manual.

Contents

Visit our w ebsite at www .dpstelecom.com for the latest PDF manual and FAQs

NetGuardi an 224A Overview1 1
Specifications2 3
Shippi n g Li st3 4

Optional Shipping Items - Available by Request3.1 7

Installation4 8

Tools Needed4.1 8
Mounting4.2 8
Power Connection4.3 9

NetGuardi an 224A Front Pane l5 10
NetGuardi an 224A Back Pa nel6 11

Amphenol Pinouts6.1 11
Pluggable Connectors6.2 11
66Block diagrams6.3 12

Quick Start: How to Connect to the NetGua rdi an 224A7 14

... via Craft Port (using TTY Interface)7.1 14
... via LA N7.2 20

TTY Interface8 21

Configure Serial P ort via TTY8.1 22

Quick Turn Up9 22

How t o Send Email Notifications9.1 23
How t o Send SNMP Traps9.2 25

Provisioning Me nu Fi eld De scriptions10 27

System10.1 28

History Log Format and Operation10.1.1 30
User Profiles10.2 31
Ethernet10.3 33
Serial Port10.4 34
SNMP10.5 35
Notifications10.6 36

Notification Settings10.6.1 36

Schedule10.6.2 38
Alarms10.7 39
Controls10.8 40
User Analogs10.9 41
Sensors10.10 42

HVAC Monitoring10.10.1 44

Script S ensors10.10.2 45
Ping Targets10.11 47
System Al arms10.12 48
Timers10.13 49
Date and Time10.14 50

Monitoring vi a the We b Browser11 51

Alarms11.1 51
Controls11.2 52
Sensors11.3 53
User Analogs11.4 54
Ping Targets11.5 55
System Al arms11.6 56
Graph11.7 57

Device Access Descrip tions12 58
Backup Configuration13 59
Firmware Upgra de14 60
Reference S ection15 61

Display Mapping15.1 61
System Al arms15.2 66
SNMP Manager Func t ions15.3 67
SNMP Granular Trap P ackets15.4 68

Frequently Aske d Questi ons16 69

General FAQs16.1 69
SNMP FAQs16.2 70

Techni ca l S up port17 71
End User Lice n se Agree me nt18 72

1

1

Could you estimate how much money your company has invested in your remote she lter, IT server
room, or data center? How much is your network uptime worth t o you? T hese questio ns might b e
diff icult t o answer, but mon itoring your valuable I T equipmen t certainly doesn’t have to be.

Y ou need a compact, simple, and re l iable device to mon itor basic environmental conditions (like
tempera t ure, humidity, smoke... ) around your valuabl e equipment . Without this ba sic vi sib ility, it’s just a
matter of t ime before your investment i n your serv er room is serio usly damaged.

· 24 Dis crete Alarm Inpu ts (TTL)

· 4 D-Wire sensor ports

· 2 Form C Control Relay Outputs

· Fast, i n tegrated, and secure Web browser

· 32 pi n g targets to monitor other devices on the network

NetGuardian 224A Overview

The Net Guardian 224A

Meet the NetGuardian 224A

This small de vice kee ps tab s on all the enviro nment al levels that aff ect your servers, phone closets,
data cent ers, and other e quipment locations. Th e 24 discrete a larms on th e back panel are used t o
monito r dry contacts, such as moti on sensors, UPS, smoke d etectors, flood sensors, AC and roo m
entry.

What’s the current room temperat ure? When was the last time someone entered the room? G et all o f
this in f ormati on - right f rom yo ur network PC.

Don’t wait until the da y you r A C un it fa il s and y ou r server closet overheats to start protecting your
gea r. T his small, 1 RU device alerts you o f cha nging con ditions 24 hours a day, 7 days a wee k, eith er to
your cell or SNMP manager. The NetGuardian 224A is the cost-effective way to stay proactive in your
monitoring.

2

Common Applications for the NetGuardian 224A

The NetGuardian 224A reports alarms as S NMP t raps over LAN and s upports DCP polling over RS-232, RS-485 or
LAN. The NetGuardian 224A supports sim ult aneous SNMP and DCP operation.

The NetGuardian 224A supports both LAN and s erial port connectivit y . The LAN connection and seri al port can be
used at the same time t o support simult aneous SNMP and DCP alarm report ing. However, only one DCP channel
can be used, therefore the Net Guardian 224A c annot simult aneously report DCP over LAN and DCP over serial port
connection.

In addition to it s 24 disc rete input points, t he NetGuardian 224A has 2 control relay s , both form C, for user defined
NO/NC connec t ions, 2 analogs, and dwire. The control relays allow network adminis t rators to respond rem otely t o
threats to s y s t em int egrity. Us ing the control relays, network administ rators can turn on bac kup generators, open
doors and gates for emergency access , reboot equi pment, ex haust fans, or perform other funct ions. The
NetGuardian 224A also allows you to revers e t he logic s t ate of the alarm on a point by point basis for discrete
alarms.

Another feature of t he NetGuardian 224A is user-defined alarm qualificati on times . This will allow you to clearly
distinguish momentary s t atus c hanges from s erious problems.

3

Hardware

Dimensions:

17 .026" W x 1.720" H x 5.636" D

Mounting:

19 ” or 23 ” Rack

Weight:

3.5 lbs ( 1.56 kg)

Power I nput:

24/48VD C ( 18 to 60

VDC)

P olarit y Insens itive

Power Sup ply Output:

+24VDC, 1 a mp
+12VDC, 1 a mp

3

Current

Draw:

100mA @ 48 VDC
200mA @ 24 VDC

Fuse:

3/ 4 Amp GMT Fuse

Visual Inter faces:

8

Front Panel LED s

6 back LED' s

1

Hardware Int erfaces :

1

DB5 0 (

Discrete Inp uts )
1 R J45 10/100BaseT E thernet
1 RS-232 Seria l

(optional U SB s erial)

1 USB C raf t Port

4 RJ

-12 D-Wir e sen sor port
1 Pluggable port for C ontro ls
2 RJ45 fo r analongs/po wer supp ly

Discrete A larm Inputs:

24 (TTL, 5V b iased)

Analogs:

2

Input Range:

-92 t o +92VDC o r 4 t o 20mA

4

An alog Accuracy:

± 1% of Analog Range

Control O utputs:

2 Form C

Relays

Max Voltag e:

60 VDC/120 VAC

Max Current:

1A AC/DC

Operating Tem p:

32° t o 140°F ( 0° to 60°C)

1

Indu strial Op erating Tem p:

-22° to 1 58°F (-30° to 70° C)

Operating Humidity :

0% to 95% non-cond ensing

MTBF:

60

Years

RoHS:

RoHS 5/6

Approved

Software

Downloadable Firmware:

Yes

Built-in Web I nterface:

Yes

Br owser Su pport :

IE9, IE10, Firefox, Chrom e

Protocols:

HTTPS, DCPx, TELNET, HTTP, Em ail

SNMP S up port:

V1, V2c, V 3

1

D-Wir e Senso r Support:

Temp, Temp/Humidity, Temp/Airflow

Ping Al arms:

32

Note:

1

Valid if hardware option is included.

2

Mini mum l engt hs

de termined wit h TT L vol tage le vel alarms . Actual d istance ma y v ary .

3

Current m easure d a t rated vo ltage with all c ontrols latched a nd all alarms triggere d

.

4

See analog sect io n in manual for detailed analo g accu ra cy br eak down.

* This e quipment has been tested and found t o co mply wi th the limits for a Cl ass A digita l de vice, p ursuant to p art 15 of the FCC Rules. Th ese l imit s are
designed to pro vide reaso nable p rotection aga inst ha rmf ul interference when the equipment is operated in a co mm ercial environm ent. This equipme nt

generates, uses , and can radiate r adio f requ ency ener gy and, if not installed a nd used in a ccor dance with the instr uct ion manual, may ca us e harmful
interference to radio communications. O pera tion of this equ ip ment in a residential ar ea is likely t o caus e ha rmful interfe rence in whi ch c ase the user will

be required to cor rect t he in ter ference at hi s o wn expense.

Secure Web:

TLS v1. 2 and A E

S128 with buil t in self signed certific at e by DPS Telecom for 128bit key exchange

2

Specifications

4

NetGuardia n 224A
D-PK-NG224

NetGuardia n 224A Resource CD

NetGuardia n 224A User Manual
D-UM-NGDIN

6 ft. USB Dow nloa d Cable
D-PR-046-10A-06

x 2

x 2

3/4-Amp GMT Fuse s
2-741-00750-00

Locking RIA Connector (Main P wr)
2-820-00862-02

6-Pin Plug gab le Pho en ix Con ne c t or (Co ntr ols)
2-821-10635-00

14ft. Etherne t Cab l e
D-PR-932-10B-14

x 2

x 2

23" Rack Ear
D-CS-325-10A-01

19" Rack Ear
D-CS-325-10A-00

3

Please make s ure all of t he following items are included with y our NetGuardian 224A. If parts are miss ing, or if you
ever need to order new parts, please refer to the part numbers lis ted and call DPS Telecom at 1-800-622-3314.

Ship p i n g L i st

5

6

x 8

x 4

3/8" Ear Scre ws
1-000-60375-05

Me tric Rack Scre ws
2-000-80750-03

x 4

Tw o S ta ndard Rack Scre ws
1-000-12500-06

Pads
2-015-00030-00

Option al Shipping Items - Availa b le by Reques t3.1

Small WAGO connector
2-802-01020-00

7

8

4

Installation

Tools Needed4.1

To ins t all t he NetGuardian 224A, you'll need t he following tools :

Phil l i ps No. 2 Screw dri ver Small S ta nd ard No. 2 Screwdri ve r

PC with terminal emulator,
such a s HyperTe rm i nal

Mounting4.2

The Net Guardian 224A c an b e fl ush or rear-mounted

The NetGuardian 224A mounts in a 19" rack or a 23" rac k using the provided rack ears for eac h si z e. Two rac k ear
locations are provided. A t t ac h the appropriate rack ears in the flush-mount or rear-mount locati ons s hown in
Figure 6. 2.1.

Note: Rack ears can be rotated 90° for wall mounting or 180º for other m ounting options (not shown).

Power Conn ection4.3

The NetGuardian 224A uses s ingle or dual (Optional) power inputs, powered t hrough t wo barri er plug power
connectors.

NetGuard ia n 22 4A Power Terminals and Fuse s

To connect the Ne tGua rdi an 224A to a powe r supply:

1. Locate the metal grounding lug next to the sy m bol . Use the grounding lug to connect the unit to earth
ground.

2. Insert t he eyelet of the eart h ground c able between t he two nuts on the grounding lug (Ground cable not i ncl uded).

3. Choos e a barrier plug power connector to attac h y our power cable to. One plug is used for main power and the
other is used for backup power. B oth plugs are interchangeable so it does not matt er which plug you select. E ach
plug's right terminal is Ground and it s l eft terminal is Bat t ery Lead.

4. Inser t a battery return into the power connector plug' s right terminal (+) and tighten the screw.

5. Inser t a battery lead to the plug's left terminal (-) and tighten its s c rew.

6. Insert fuse into the fuse distribution panel.

7. Check the power s t atus LED for polarity . The LE D will be off if polarity i s wrong, and green if it i s c orrect.

8. Measure voltage. Connect t he black c able onto the ground connector of your Digital Volt age Meter (DVM) and red
cable onto the other connector of your DVM. The voltmeter should read between the values lis t ed on the silk
sc reen next to the power c onnector.

9. Insert t he local fuse into the power fuse slot. The power plug c an be inserted into the power connector only one
way to ensure the corre ct polar ity.

Note: Th e nega tive vo ltage terminal is on the left and the (+) terminal is on the right .

9

10.Verify that the LED is lit . To confirm that power is correctly c onnected, t he front panel stat us LED will flash
GREEN and RED, indic ati ng that the firmware is booting up.

10

LED

Status

Description

Power

Solid Green

Power Supply OK

Off

No Voltage (or) Power Leads Reversed

FA

Solid Red

Blown Fuse

Off

Fuse OK

Status

Flashing Green

Application Running

Flashing Red

Bootloader Running

Alarm

Flashing Red

New A larm

Solid Red

Standing Alarm Ack nowledged via DCP poll

Off

No Alarms

Serial

Flashing Green

Data Transmitt ed on Serial Connecti on

Flashing Red

Data Rec eived on Serial Connect ion

Power

(Lamp)

Solid Green

Process or has power

Off

Process or does not have power

USB

Flashing Green

Data Transmitt ed over USB

Flashing Red

Data Rec eived over USB

D-Wire

Solid Green

At least 1 dwire enabled, no alarm

Flashing Green

Standing acknowledged alarm (Threshold)

Flashing Red

New A larm

Off

No D-W ire Alarms

Lnk

Solid Green

LAN Connect ed

Off

LAN Not Connected

LAN

Flashing Yellow

Act i vit y over Ethernet Connecti on

Off

No Activity

100BT

Solid Green

LAN Connect ion Speed is 100BaseT

Off

LAN Connect ion Speed is 10BaseT

Analog

Solid Green

Analogs enabled, no alarm

Solid Red

Standing acknowledged alarm (Threshold)

Flashing Red

New A larm

Off

No Analogs enabled

Relay

Solid Green

1 or more relays lat c hed

Flashing Green

New relay latched or released

Off

All relay off

5

NetGuardian 224A Fron t Panel

NetGuardian 224A Front P anel

Front Panel LED Desc ripti ons

11

6

NetGuardian 224A Back Panel

Amphen o l Pinouts6.1

If your unit has only one amphe nol connector, your controls are plugga ble. See next section for wiring.

For alarms 1-24, the inputs are TTL 5V biased.

Pluggable Connectors6.2

If your controls use a pluggable connector, attach your wires into the included screw-down 6-pin phoenix connector. Ref er to
the labels on the unit.

If your controls have an amphenol connector, refer to previous section.

12

66Block diagrams6.3

66 bloc k pinout for Amphe nol 1 (TT L Discretes 1-24 )

66 bloc k pinout for Amphe nol 2 (Co ntrols 1-2 )

13

14

NetGuardian 224A Craft P ort

Use the front panel craft port to c onnect t he NetGuardian 224A IT to a PC for onsit e unit configurat ion. To
use the craft port , c onnect t he included DB9 download cable from your PC's COM port t o the craft port.

Note: The following images dis play t he set up process done in Windows XP.

The followi ng st eps will occur the firs t t im e any DPS USB equipment is us ed on this PC. If you've us ed a
different DPS USB device before and have installed the DPS USB drivers, then ski p to Ste p 9.

When you first connect t he NetGuardian 224A to your PC via USB, a "Found New Hardware" mess age will
appear:

1. Click t he "Found New Hardware" message/icon to launch the "Found New Hardware Wizard".

7

Most NetGuardian 224A users find it easiest t o give the unit an IP address , s ubnet and gat eway through the front
craft port (TTY interface) to start. Once thes e set t ings are saved and you reboot the unit, y ou can acc es s it over LAN
to do the rest of your dat abasing via the W eb Browser interface.

Alterna tive option: You can sk i p the TTY interface by using a LAN crossover cable direc t ly from y our PC to the
NetGuardian 224A and ac c es s it s W eb Browser.

Quick Start: Ho w to Con n ect to the NetGuardian 224A

...via Craft Port (using TTY Inte rfa ce)7.1

15

2. Select " Inst all from a list or specific loc ation (Advanced)"

3. Click " Next > "

4. Select " S earch for the best driver in these locations. "

5. Insert NetGuardian 224A Resource Disc (CD) int o y our PC.

6. Click " B rowse"

16

7. Select t he "Driver" folder of your NetGuardian 224A Resource Disc Dis c (CD) and cl ic k "OK"

The followi ng mess age will confirm installation of a new "USB Communications Port"

8. Click " F inis h" t o c los e the W izard.

Now t hat t he driver has been installed, a new COM port is being emulated on y our PC. Before us ing
hyperterminal, you must c onfirm the ident it y of that new COM port (COM1, COM2, COM3...) in the Windows
Device Manager.

17

9. Right-click t he "My Computer" icon on your desktop, then cli c k " M anage"

10.Click " Devic e Manager" i n the left pane.

18

11.Expand the "Ports (COM & LPT)" secti on in the right pane. Look for "USB Communications Port (COMx)".
Note the num ber of t he COM port ("COM3" in t he example above).

12.Click on the Start menu > select Programs > Accessories > Communications > HyperTerminal.

13. At t he Connec t ion Description screen, enter a name

for t his c onnection. Y ou may als o selec t an icon. The
name and icon do not affect y our ability t o c onnect t o
the unit.

14. At t he Connec t To screen, use the drop-down

menu to select t he COM port you found earli er in the
Device Manager.

19

15. Select t he following COM port options:

• Bi t s per second: 9600

• Data bits: 8

• Parity : None

• St op bits : 1

• Flow control: None

Once connected, you will see a blank, white
HyperTerminal screen. Press E nter to act ivat e the
configu ration menu.

16. When pro mpted , enter the defa ult user name
admin and password dpstelecom. NOTE: If y ou
don't receive a prompt for your user name and
password, check t he Com port you are using on your
PC and make sure you are using the cable provided.
Additional cables can be ordered from DPS Telecom.

17. The NetGuardian 224A's main menu will appear.
Ty pe C for C)onfig, t hen E for E)thernet. Configure the
unit's IP address , subnet mask, and default gateway.

18. ESC to the main menu. When asked if you'd like
to save y our changes, t y pe Y for Y)es. Reboot t he
NetGuardian 224A to save its new configuration.

Now you're ready to do the rest of your c onfigurati on via LAN. Please refer t o the next s ec t ion ". . . via LA N" for
instruct ions on s ett ing up your LAN connec t ion.

20

...via LAN7.2

NetGuardian 224A Ethernet Port

To connect to the NetGua rdi an 224A via LAN, a l l you ne ed i s the uni t's I P addre ss (Defaul t IP addre ss is

192.168.1.100).

If you DON'T have LAN, but DO have ph ysical access to the NetGuardian 224A, connect us ing a LAN

crossov er cable. NOTE: Newer PCs should be able to use a standard straight-through LAN cable and handle the
crossover for you. To do this, y ou will temporarily change your P C's IP addres s and subnet mask t o mat c h the
NetGuardian 224A's fac t ory defaul t IP set t ings. Follow these st eps:

1. Get a LAN crossover cable and plug it direct l y into the NetGuardian 224A's LAN port.

2. Look up your P C's current IP address and subnet mask , and write this informat ion down.

3. Reset your PC's IP addr e ss to 192.168.1.200. Cont ac t y our IT depart ment if you are uns ure how to do t his .

4. Reset your PC's subne t mask to 255.255.0.0. You may have to reboot your PC to apply y our changes.

5. Once the IP address and subnet mask of your computer coincide with the unit , y ou can acc es s t he unit via
a Telnet sess i on or via Web browser by using t he unit's default IP addres s of 192.168.1.100.

6. Provision the NetGuardian 224A with the appr opriate information, then chan ge your compute r's IP

address and subnet ma sk back to their origi nal settings.

Now you're ready to do the rest of your c onfigurati on via LAN. Plug your LAN cable into the Net Guardian 224A and
see "Logging On t o the NetGuardian 224A" to c ontinue databasing using the Web Browser.

21

· Edit t he IPA, s ubnet, and gateway

· Set DCP info for T/M on polling

· Configure primary port

· Ping other devices on the net work

· Set unit back t o factory default s

· Debug and troubl eshoot

8

The TTY interface is the NetGuardian 224A's built-in interface for bas ic configuration. From the TTY interfac e, y ou
can:

For Telnet, connect to the IP addres s at port 2002 to acc es s the c onfigurat i on menus after initial LAN/WAN set up.
Tel net sessions are esta bl i shed at port 2002, no t the standard Tel net port as an added security m easure.

If y ou're us ing W indows 7, then you'll need t o inst all t elnet before y ou can use the TTY interface. To inst all t elnet,
open up your command line (type "cmd" into the search bar in the S ta rt Menu). Select cmd.exe to run the
command line.

TTY Interface

For more advanced configurati on tools, please use the W eb B rows er Interface.

From the command line, type in pkgm gr / i u:"Te l netClie nt" then pre ss enter. When the command prompt
appears again, the inst allati on is c omplete.

Me nu S hortcut Keys

The lett ers before or enclosed in parentheses () are menu s hortcut k ey s . P ress t he shortcut k ey t o acc es s t hat
option. Pressing the ES C key will always bring you back t o the previous level. Entries are not case s ensit ive.

22

Configure Serial Port via TTY8.1

Seria l port confi guratio n

1. To enter c onfigurat i on setting for the Serial Port, login to the TTY interface and press C)onfig > s(E)rial.

2. Press t he hot key s t o t oggle through the following options. (* Indicates default settings: )
NOTE: Default s et t ings m ay not reflect the primary interfac e that s hipped in the unit.

· Port Type: 232*, 485

· Baud: 9600*, 57600, 19200, 9600, 4800, 2400, 1200

· Parity: None*, even, odd

· Stop bits: 1*, 2

3. Set the RTS head / tail (Carrier tim e) Suggested sett ings are: 0,0 if using RS232.

9

The next s ec t ions of this manual will walk you through s ome of the most common tas k s for using the Net Guardian
224A. You will learn how to send email notifications, and send SNMP traps to your alarm master - all using the Web
brows er. For details on entering y our sett ings i nto each W eb brows er menu, the sect i on "Provis ioning Menu Field
Descriptions" sect ion.

Quick Turn Up

How to Send Email Notifications9.1

1. Click on the Notifications b utton in the Provisioning menu. You can setup as many as 8 different notifications.
Begin the setup "wizard" by clicking Edit for a notification number. In this ex ample, we'll setup Notification 1 to send
emails.

2. At the Notification S etting screen, use the drop down box t o set what events t o use for this notification. Now,
select the Send Ema i l Notifica tion button and click Sa ve and Ne xt.

23

3. At the Ema i l Notificati on screen, you'll enter your email server settings. Enter the I P addre ss or Host Name of
your email server. Enter the Port Numbe r (usually 25) and the "To" Email Addre ss of the technician that will
receive these emails . If authentication is required, chose the type and fill in the necessary fields. Clic k Next.

24

4. At the Schedule screen, you'll select the exac t days / t im es y ou want to receive email notifications. Y ou can set
2 schedules per not ificat ion. For example, y ou may want to receive notifications at c ertain times during the week,
and at different hours on the weekend. Use the c heck boxes t o selec t t he days of the week , and select t he tim e
fr o m the drop down menus. Click Finish. To try a test notification, click the Test button (See next s t ep.)

5. If you chose to tes t the email notificati on y ou've just setup, y ou will prompted with a pop up . Click OK to send a
test email alarm notification. Confirm all your settings by c hecking your email to see if you've received it. NOTE: This
test only m eans that y our notification sett ings are correct, but y ou st il l need to assign the notification to an alarm
point. See the next s t ep.

6. Now you will as s oc iat e this notificat ion to an alarm (syst em, base, analog, etc. ) You have 8 notifi c ati on devices
available to use. In the image below, you might assign Notification De vice 1 to Alarm 1. This means that y ou
would receive an email notification whe n an alarm fo r Alarm 1 (SERVER ROOM) occurs.

How to Send SNMP Traps9.2

1. Click on the SNMP button in the Provisioning menu. Enter the S NMP GET and SNMP SET community strings
for your network, then click Save. The typical SNMP S ET and GET community st rings for net work devices i s
"public". A s an added security measure, we've made our default "dps_public" .

25

2. Click on the Notifications b utton in the Provisioning menu. You can setup as many as 8 different notifications.

Begin the setup "wizard" by clicking Edit for a notification number. In this ex ample, we'll setup Notification 1 to send
SNMP traps t o your alarm master.

3. At the Notification S etting screen, use the drop down box t o set what events t o use for this notification. Now,

select the Send S NMP Notifica tion butt on and click Next.

26

4. At the SNMP Notifica tion screen, you'll enter your network's SNMP settings. Enter the IP address of your

SNMP Tr a p Server. Enter the Trap P ort Number (usually 162) and the Tra p Com m uni ty password. Click Save
and Next.

5. At the Schedule screen, you'll select the exac t days / t im es y ou want to receive SNMP notifications. Y ou can s et

2 schedules per not ificat ion. For example, y ou may want to receive notifications at c ertain times during the week,
and at different hours on the weekend. Use the c heck boxes t o selec t t he days of the week , and select t he tim e
fr o m the drop down menus. Click Save and Finish. To try a test notification, click the Test button (See next st ep.)

6. If you chose to tes t the email notificati on y ou've just setup, y ou will prompted with a pop up . Click OK to send a

test S NMP alarm notification. Confirm all y our sett ings by c hecking your alarm m as t er to see if the SNMP trap was
received.

NOTE: This test only means t hat y our notification settings are correct, but y ou st i ll need to assign the notification to
an alarm point. S ee Step 6 in "How to Send Email Not ificat ions" for more detail.

27

10

NetGuardian 224A config u ration is performed fr o m the Provisioning menus, t he menu options in green on the left ­side of the web interfac e. The following pages provide a brief description of the opti ons available in each menu.

Sa vin g Configura tio n Cha nges to the Ne tGua rdi an 224A:

At the bottom of each screen you access from the Provisioning Menu, you will see a Save button. Click i ng Save
will cac he your changes locally. The web i nterface will then prompt you to either Write your changes to the unit or
Reboot t he unit for c hanges to tak e effec t in the top-left corner of your browser. The relevant options will be
highlighted in the De vi ce Access options.

Note: If the unit prompts you to both Write changes to the unit and Rebo o t, you will Write your changes first.
Rebooti ng without writing to the unit (if a Write is required) will cause y ou to lose y our configuration changes.

Provisioni n g Menu F i eld Descriptions

Status messages on the NetGuardian 224A Device Acces s m enu, inform you how t o implement your changes

The control menu highlights i t ems t hat mus t be completed for your changes to take effect

28

Globa l S ystem S ettings

Name

A name for this NetGuardian 224A unit. (Optional field)

Location

The locati on of this NetGuardian 224A unit. (Optional field)

Contact

Contact telephone number for the person res ponsible for this NetGuardian 224A unit.

(Optional field)

DCP Res ponder Settings (For use wi th T/ Mon)

DCP Unit ID

User-definable ID number for the target unit (DCP Address)

DCP Unit Protocol

Drop-down menu of available protocols for use with DCP Address

DCP over LAN port

Enter the DCP port for the t arget unit (UDP/TCP port)

LAN Protocol

Drop-down menu of available protocols for use over LA N

Modbus Re sponder S ettings

Modbus Uni t ID

User-definable ID number (Modbus Address)

Modbus Port

Enter the Modbus port number

Analog & Se n sor Hi story

Get History

Download a log of all configured analog and sensor values.

Bypass Login

File can be downloaded wit hout logging in when check ed.

Erase History

Erase the log of all c onfigured analog and sensor values.

System10.1

From the Provisioning > System menu, you will configure and edit t he global sys t em, c all, T/Mon and control
sett ings for the Net Guardian 224A.

The Provis i oning > System m enu

29

Event Log

Get Log

Download a log of all alarm events in either plain t ex t (event.log, open with notepad) or
spreadsheet format (eventlog.csv, open with Exc el).

Bypass Login

File can be downloaded wit hout logging in when check ed.

Purge Log

Erase the log of all alarm events.

30

Parameter

Description

Works With

ch

Channel number 1-40. If present, filters for a particular channel. A nalogs
are mapped to channels 1-8, sensors are mapped to channels 9-40.

history.csv

cnt

If present, device will return "cnt" lat est l ines.

history. c sv or
eventlog.*

st

Start t ime in unix t im e format . This will limit number of lines returned.

history. c sv or
eventlog.*

et

End time in unix tim e format. This will im it number of lines returned.

history. c sv or
eventlog.*

uk1

User Key 1. Up to 32 charac t ers. This key will be returned uk ey1

column.

history.csv

uk2

User Key 2. Up to 32 charac t ers. This key will be returned uk ey2

column.

history.csv

uk3

User Key 3. Up to 32 charac t ers. This key will be returned uk ey3

column.

history.csv

10.1.1 Hi story Log Format and Operation

GET parameters can be used with the history.csv or the eventlog.csv request to filter the returned data. When
no GET parameters are supplied, all data will be returned in CSV format.

To add GET parameters:

qRig ht -click the history.csv l i n k on th e Provisioning > Systems page.
qDepending on your browser, select either "Copy link address", "Create link shortcut", or similar option.
qPaste the link in a new tab on your chosen web browser.
qAdd the desired parameters to the link.

· T he string mu st st ar t wit h a "?" aft e r the .csv

· Enter the parameter, then "=", followed by desired value (described in description in the table below).

· To enter multiple parameters, each should be separated by "&".

· Example: http://10.0.6.45/history.csv?st=1397669439&et=1397671119&uk1=userkey1&uk2=userkey2

qPress enter to return results.

Example Output:

systime,utime,chan,romid,description,average,minimum,maximum,units,ukey1,ukey2,ukey3
2011- 0 2 - 0 3 1 1 : 1 3 : 2 7 , 1 2 9 6 7 3 1 6 0 7 , 9 , 2 8 E 5 6 4 4 4 0 7 0 0 0 0 4 6 , t e s t , 7 5 . 7 5 0 , 7 5 . 7 5 0 , 7 5 . 7 5 0 , F , , ,
2011- 0 2 - 0 3 1 1 : 1 2 : 2 7 , 1 2 9 6 7 3 1 5 4 7 , 9 , 2 8 E 5 6 4 4 4 0 7 0 0 0 0 4 6 , t e s t , 7 5 . 7 5 0 , 7 5 . 7 5 0 , 7 5 . 7 5 0 , F , , ,
2011- 0 2 - 0 3 1 1 : 1 1 : 2 7 , 1 2 9 6 7 3 1 4 8 7 , 9 , 2 8 E 5 6 4 4 4 0 7 0 0 0 0 4 6 , t e s t , 7 5 . 7 5 0 , 7 5 . 7 5 0 , 7 5 . 7 5 0 , F , , ,
2011- 0 2 - 0 3 1 1 : 1 0 : 2 7 , 1 2 9 6 7 3 1 4 2 7 , 9 , 2 8 E 5 6 4 4 4 0 7 0 0 0 0 4 6 , t e s t , 7 5 . 6 8 8 , 7 5 . 6 2 5 , 7 5 . 7 5 0 , F , , ,
2011- 0 2 - 0 3 1 1 : 0 9 : 2 7 , 1 2 9 6 7 3 1 3 6 7 , 9 , 2 8 E 5 6 4 4 4 0 7 0 0 0 0 4 6 , t e s t , 7 5 . 6 2 5 , 7 5 . 6 2 5 , 7 5 . 7 5 0 , F , , ,

NOTE: Total GET parameters string cannot be longer then 100 characters.

User Profiles10.2

User P rofil e

Suspend this P rofil e

If this box is checked, the profile will not be able to access the NetGuardian 224A.

Username

Enter a username or a user description

Password

Enter a unique user password Note: All pass words are AES 128 encrypted.

Confirm Pa ssw ord

Re-enter the password.

Access Ri ghts

Check al l

Enables all Access Rights

Edit logon profiles

Enables the user to add/modify user profiles and password information.

Wri te Config (chan ge

unit configura tion)

Enables the user to change the unit config by accessing the Write feature in t he
control menu.

View monitor pa g es

Allows the user to acc es s Monitor menu options.

Se nd relay comm ands

Allows the user to send commands to operate the device's control rel ays.

TTY access (access via

Craft port or via Te l net)

Grant s the user acces s t o the unit via TTY int erface (via craft or telnet).

Initial i z e config to

Allows the user to use the Initialize option in the Device Access menu, resett ing the

Clicking User P rofil es gives y ou acc es s t o modify the default us ername and pass word, and to edit the adm inis t rator
profile and create up t o 9 additional unique user profiles, eac h with different acces s rights t o the NetGuardian 224A's
web int erface.

31

Configure acc es s privileges for users in the User Prof il e screen

To create or edi t any of the 10 user profiles (including the Admin), cli ck the Edit button. From there, you can
change all configurable settings for a user profile.

32

User P rofil e

factory defa ul ts

NetGuar dian 224A to factory default s et t ings. A ll us er sett i ngs will be lost.

Upload new firm ware ,

or config

Allows the user to upload firmware or backed-up configuration files.

Get a udi t lo g

Allows the user to acc es s t he Audit Log (Get Log command).

Purge (de l ete ) a udi t lo g

Allows the user to deletes the exis t ing audit log.

Get (backup) config

Back s -up all user profile configuration set t ings.

Get a nd del ete ana l og

history

Allows the user to acc es s and delete the analog and sensor history.

User profi le fi eld descriptions

Ethernet10.3

Etherne t Settings

MAC Address

Hardware address of the NetGuardian 224A. (Not editable - For referenc e only. )

Host Name

Used only for web browsing. E x ample: If you don't want to remember t his NetGuardian
224A's IP address, you can type in a name is this field, suc h as " M y NetGuardian 224A".
Once you save and reboot the unit, y ou c an now browse to it loc ally by s i mply t y ping in
"My NetGuardian 224A" in t he addres s bar. (no "http:/ / " needed).

Enable DHCP

Used to turn on Dynamic Host Connection Protocol. NOT recomm ended, because the
unit is as s igned an IP address from your DHCP server. The IP you've already as s i gned to
the unit becomes inacti ve. Us ing DHCP m eans the unit will NOT operate in a T/Mon
environment.

Unit IP

IP address of the NetGuardian 224A.

Subne t Mask

A road sign to the Net Guardian 224A, t elling it whether your pac k ets should stay on your

local network or be forwarded somewhere else on a wide-area network.

Gateway

An important paramet er if you are c onnected to a wide-area network. It t ells t he

NetGuardian 224A which machine is t he gateway out of y our local network . S et t o

255.255. 255.255 if not usi ng. Contact y our network adminis t rator for this i nfo.

DNS Serve r 1

Primary IP addres s of the domain name server. Set t o 255.255.255.255 if not using.

DNS Serve r 2

Secondary IP address of the domain name server. Set t o 255.255.255.255 is not using.

The Edit > Ethernet menu allows y ou to define and configure Et hernet setti ngs.

33

The Provis i oning > Ethernet menu

Note: DNS Server settings are required if a hos t name is being used for ping target s .

34

Location

A reminder t hat y our primary serial port is l ocat ed on the back of the NetGuardian 224A
chassis.

Port Configuration

Port Type

Select t he s erial port for your build of the NetGuardian

224A. Choos e from 232, 485...

Baud, P arity, and Stop Bits

Select t he appropriate set t ings from the drop-down m enu.

RTS Hea d

Only used if your NetGuardian 224A was built with a 202

modem. The most commonly used value is 30.

RTS Tai l

Only used if your NetGuardian 224A was built with a 202

modem. The most commonly used value is 10.

Rea ch-Through

Enable Reach-through

Checking this box enables the port to be used as a terminal
server. Most commonly used to Telnet t hrough the port over
LAN to a hub, s wit c h, or router. From a command prompt ,
type the following (note the spaces between each entry):

telnet [IP addres s] [ port]

Example: t elnet 192.168.1.100 3000

Port

Port number us ed for reach-through t o a serial device.

Type

Select TCP or UDP t raffic t o be passed through t o a serial
device.

Serial Port10.4

The P rovisioning > S erial P ort menu allows you to change setti ngs depending on the port type of your
NetGuardian 224A. From this menu, you c an select a mode of operation and enable reac h-through s erial port
functionality.

The Provis i oning > Serial Ports menu

SNMP10.5

Globa l S ettings

Get Commu ni ty

Community name for SNMP requests.

Se t Comm uni ty

Community name for SNMP S E T request s .

Rea d and Write

Access

This field defines how the NetGuardian 224A unit m ay be acces s ed via SNMP . This can
be set to the following:

· Access Disabled- Restrict s all acc es s t o unit via S NMP

· SNMPv2c only- All ows SNMPv2c access only

· SNMPv2c and SNMPv1-Only- Allows SNMPv1 and SNMPv2c ac c es s

· SNMPv3, S NMPv2c and S NMPv1- All ows SNMPv3, SNMPv2c and SNMPv1 acc ess

The Provisioning > SNMP menu allows you to defi ne and configure the SNMP sett ings.

35

SNMP Menu

Fields in the Provisioning > SNMP s ett i ngs

36

Email Notification

SMTP S erve r I P o r

Host Name

The IP addres s of your email server.

Port Numbe r

The port used by your email server to rec eive emails , usually s et t o 25.

Use S S L

Check this box t o use SS L encrypti on. Currentl y t his feature has been tested

with Gmail. To send with Gmail S MTP server, do the following:

· SMTP Server IP or Host Name should be set to "smtp.gmail.com"

· Port number must be set to 465.

· SMTP authentication radio button must be selected.

· User nam e and password (below under "How to Authenticate") are the user

name and pass word for the Gmail account in use.

"From" E-mail Addre ss

Displays t he email address (defined in the Edit menu > Sy s t em) that t he

NetGuardian 224A will send emails from. Not editable from t his s c reen.

"To" E-m ail Addre ss

The email addres s of the person responsible for this NetGuardian 224A, who

will receive email alarm notifications .

User Na m e

User nam e for the Gm ail account being us ed.

Password

Pass word for the Gmail account being used.

Notifications10.6

From the initial Provisioning > Notifications menu, y ou will see which of the 8 notificati ons are enabled, t heir
server, and schedule. Click on the Edit link for one of the not i fications t o begin configuration. Once y ou've chosen
which notification you want to setup, check the Enabl e Notification t o turn it "on." Then choose a not i fication
method, either email, SNMP, voic e c all, or TRIP Dialup (T/Mon).

10.6.1 Noti f i cation Setti ngs

Emai l Notificati on Fi elds

Editing Email Notif ic at ion Sett i ngs

Note: If you want t o send authenticated emails, c li c k t he appropriate radio but t on. If you enable POP authenticat ion,
you will have to enter t he relevant authent ication informati on the fields below.

SNMP Notification Fi elds

SNMP Notification

SNMP Tra p S erve r I P

The SNMP t rap manager's IP addres s .

Trap P ort No.

The SNMP port (UDP port ) set by t he SNMP t rap manager to receive

traps, usually s et t o 162.

Trap Com m uni ty

Community name for SNMP TRAP reques t s .

Trap Type

Indic at e whether you would like to s end SNMP v1, v2c or v3 t raps.

37

Editing SNMP notificat ion sett i ngs

38

Notification Scheduli ng

Days of the wee k

From either Schedul e 1 or 2, check which days y ou want to receive notifications.

Any Time

Select t his i s if you want to receive alarm notificati ons at any t i me for the day (s)
you've selected.

Notification Ti m e

Tells t he unit to only send not ificat ions during certain hours on the day(s) you've
selected.

10.6.2 Schedule

The notifications s cheduling m enu is where you will tell the NetGuardian 224A exactly which days and times y ou
want to receive alarm notifications. You set 2 different schedules for each.

The Schedule creation screen

Alarms10.7

Basic Al arm Configuration

ID

Alarm ID number.

Description

User-definable des c ription for t he disc rete alarm point.

Rev (Reverse)

Revers e: Check t his box t o reverse the polarit y of the al arm point. Leaving this option
un-checked means a normally open contact c los ure is an alarm. When polari t y is
reversed, a normal ly c l osed alarm point is cl ear when c los ed.

Notification Devi ce s

Check which notification device(s), 1 through 8, y ou want to send alarm not ificat ions
for t hat alarm point.

Advanced Alarm Configura tion (Advance d> > )

On Se t

User-definable des c ription (condition) that will appear for t he disc rete alarm input on
Set. E xample: "A larm".

On Clear

User-definable des c ription (condition) that will appear for t he disc rete alarm input on
Clear: " E x ample: " A larm Cleared" .

Qual . Ti m e (Qual i fi ca tion

Time)

The length of t im e that m ust pass, without interruption, in order for t he condition to be
considered an A larm or a Clear.

Qual . Type (Qual i fica ti on

Type)

Allows y ou to choose whether you want t o apply the Qualification Time t o the alarm
Set, Clear, or Both.

Discrete alarms are configured fr om the Provisioning > Alarms menu. Descriptions for the alarm points, polarity
(normal or reversed) and notificat i on type(s) are defined from this menu. You als o have t he option to us e Basic or

Advanced configuration methods, explained in this s ec t ion.

39

The Provis i oning > Alarms menu

40

Basic Controls Confi guration

ID

ID number for the control relay.

Description

User-definable des c ription for t he NetGuardian 224A's control relay.

Momentary Ti m e

Control on tim e (in millis ec onds) when y ou exec ute the MOM c ommand. Max lim it of
600 seconds.

Notification Devi ce s

Check which notification device(s), 1 through 8, y ou want to send alarm not ificat ions
for t he control relay.

Controls10.8

The NetGuardian 224A's 2 control relays can be configured in the Provisioning > Controls m enu. You can enter
your own desc ription for these relays and designat e t hem to a notification device(s).

The Provis i oning > Controls screen

User Analogs10.9

User Ana l o gs

Defaul t m oni toring to

gaug e vie w

Checking this box sets the defau lt view in the Monitor>User Anal ogs menu to the gauge
view.

Enab (Enable )

Checking the box in the Enab column enab le s monitoring of the analog channe l.

Description

User-definable des c ription for t he analog channel

Rev

Checking the revers e button changes negative values to positive, and positive values t o
negative.

Notifications

Check which notification device(s), 1 through 8, y ou want to send alarm not ificat ions for
this analog input.

Details

Record Fre q

The frequency with which the NetGuardian will record the analog reading

Deadband

The additional quali fying value the Net Guardian requires above/below y our alarm thres holds
in order to set an alarm.

Units

The unit(s ) of measurement reported by a connected analog input.

Low ref and High Re f

The low and high values for scaling voltage to your display units.

MjU (Maj or Under)

MnU (Minor Under)

MnO (Minor Over)

MjO (Ma j or Ove r)

Threshold settings that, when crossed, will prompt the NetGuardian to set an alarm.
Recorded values l ess than an under value or greater than an over value will cause alarms.

Post On

Select t he threshold alarms to post. Al l t hresholds, M ajor Only, Minor Only, Major Over
Only, Major Under Only.

Push to Talk: Enable

Checking this box enables Push-to-Talk feature for this analog.

Discre te I nput

Assign the alarm point as s oc iat ed with this analog.

Qual . Ti m e (ms)

Lengt h of time, in mill is ec onds, t hat an alarm point must be set before before an analog
can post.

Analog Ga ug e Type

Select the type of analog gaug e represented in the Moni tor>User Anal o gs>Gauge Vi ew
menu

The NetGuardian 224's two multi-purpose analog input s measure continuous ranges of voltage or current. A nalog
alarms are typically used to monitor battery volt age, charging current, t emperature, humidity, wind speed, or ot her
continuously c hanging conditions. To configure a user analog, s i mply fill in your description, t hresholds, and other
fields listed in the table below, then click Save.

41

The Provis i oning > User Analogs menu

42

Basic Sensor Configuration

ID

Sensor ID number.

ROM ID

The ID number found on the stic k er of the temperature sensor node. Y our
NetGuardian 224A will automatically detec t t he sensor ID when you plug a s ensor into
the unit. The c olor of the sensor ID field will t ell y ou the st at us of the connected
sensor.

Green - The sensor is c onnected and properly configured.
Yellow - The s ensor is c onnected but has not yet been configured (fill in y our
configu ration fields and click Save to configure the sens or).
Red - The sensor is not detected and configured (i.e. a previous c onfigured sensor is

no longer connected).
Blue - The sensor is not supported by the Net Guardian 224A.
To reconfigure or disable the S ens or ID, simply delete any data in t his field and click

Save.

Sensors10.10

D-Wire S ensors

The NetGuardian 224A supports up to 32 dais y-chained D-W ire sensors via its D-Wire input. Sensors connected to
the NetGuardian 224A will appear on the web interfac e. The bac k ground color of the ROM field inform s t he user of
the sensor's configuration st ate.

Als o the NetGuardian 224A's first D-Wire sensor used to monitor the internal t emperature. The internal temperature
sensor measures a range of -40° F to 180° F (-40° C to 82.2° C) within an accuracy of about ± 2°.

Basic c onfigurat i on for the NetGuardian 224A's D-Wire temperature sensors can be accomplis hed from the
Provisioning > Sensors menu. F rom this s c reen, you can configure D-Wire sensors, s elect notificat ion devices ,
and set thresholds.

The Provis i oning > Sensors menu

43

The unit will refresh t he sensor ID on that c hannel.

Description

User-definable des c ription for t he sens or channel.

Parse

Checks t o s ee if the Description field contains a valid equation.

Notification Devi ce s

Check which notification device(s), 1 through 8, y ou want to send alarm not ificat ions
for t hat alarm point.

Advanced S ensor Configu ra ti on (Deta i l s>>)

Record Fre q

The amount of time, in minutes (min) or seconds (s), between each recorded sensor
value.

Deadband

The amount (in nat ive unit s ) that t he channel needs t o go above or below a thres hold
in order to c ause an alarm.

Qual Ti m e (Qual i fi ca tion

Time)

The length of t im e that m ust pass, without interruption, in order for t he condition to be
considered an A larm or a Clear.

Qual . Type (Qual i fica ti on

Type)

Allows y ou to choose whether you want t o apply the Qualification Time t o the alarm
Set, Clear, or Both.

Thresholds

These s ett i ngs are set to indic ate the s everity of the alarm depending on which
threshold values have been passed. Ent er values for Major Under (MjU), Minor Under
(MnU), Mi nor Over (MnO), and Major Over (MjO).

Post On

Select t he threshold alarms to post. Al l t hresholds, M ajor Only, Minor Only, Mojor
Over Only, Major Under Only.

Analog Ga ug e Type

Select the color-coded gauge that best represents your data. Selecting None will
disable the analog gauge and only a numerical representati on of the value will be
displayed unde r Monitor > Sensors.

Note: Before plugging in any additional D-Wire Sensors, set up the internal sensor.

44

HVAC Monitor Mode

HVAC Start Time

The tim e the HVAC has between starting and reaching operat ional Air Flow and Vent
Temperature

Mate

The ROM ID for the temperate s ensor in the same package as the Airflow sensor

Air Flow Thre sholds

Set MjU to -20

Set MnU to -10

Set MnO to a sm all value. Once the air flow gets t o that value, t he HVAC will be
considered starting.

Set MjO t o a higher value. This value will be the minimum amount of airflow required to
be considered operational. An alarm wil l t rigger if t his t hreshold is not passed by t he
HVAC Start Time expires.

Tem p era ture Thresho l ds

For a cooling HVA C, t he vent temperature shoul d reach between Cooling Under and
Cooling Over.

For a warming HVAC, the vent temperature should reach between Heating Under and
Heating Over.

An alarm will trigger if one of the above thres holds is not reached before HVA C St art
Tim e expires.

10.10.1 H VAC Monitoring

Temperature / Air Flow sensors can be used to monitor HVA C health. Enabling HVAC Monitoring on this s ensor
adds the extra fields below.

Sensor with HVAC Monit oring enabled.

10.10.2 Script Sensors

Valid data types:

d

Discrete Input

a

Analog Channel

r

Relay State

n

Sensor

v

Posit ive Integer Const ant

s

System Al arm

p

Point Index

Valid operat ions:

+

Addition

1

-

Subtraction

*

Multiplication

1

/

Division

2

>

Great er than

<

Less t han

|

Condit ional Halt

3

=

Assignment

A Sc ript S ensor can be setup by entering a s cript ty pe in the sensor ID field. The following t y pes are current ly
supported:

~count - The equat i on will be evaluat ed continuously . If the eval uation changes at any point, the sensor's value
increases by an increment of 1. This mode can be us eful for c ounting the number of times a disc rete input
toggles.

Evalu ation Sensor; every te nth of a minute (6 seconds).
~evalMt - The equation is evaluated every 6 seconds and its result bec omes t he sensor's value.

Evalu ation Sensor; every m i nute .
~evalMn - The equation is evaluated every 60 sec onds and its result becomes t he sensor's value.

Interval counter.

Interval S ensor
~intCnt - Sensor value will inc rement when the as s oc iat ed input's pulse length (high or low) is wit hin a set

interval. Example: D5 V1000>V60000< means the sensor value will increment when a 1ms to 60ms pulse
is detect ed on Discrete Input 5. This is us eful for frequency detect i on/track i ng.

45

A Sc ript S ensor is c onfigured to evaluate Reverse Polish Notation equati ons. A data token in an equat ion can
represent a discrete alarm, analog reading, sensor reading, relay status, sys tem alarm status, or a c ons tant value.
The format for a token in an equation must be a data type followed by an index (for example: Disc rete Input 1 in an
equat i on would be repres ented as " d1", Analog Channel 3 would be "a3", et c . ). E ac h tok en is t y pic ally followed by
another t ok en or an operator. The equations are entered in the des c ription field for the Script S ensor.

1. Can be used as OR (+) operator / AND (*) operator when used with ass i gnment (=) operator.

2. Division is NOT exec uted if t he denominat or's abs olute value is less t han 1!

3. An equation is evaluated until it reaches the Conditional Halt. I f t he running value at that point is z ero, then the
evaluati on st ops, otherwis e the evaluat ion continues as a new equation.

46

Input

Operation

Stack

Comment

a8

Push value

a8

a5

Push value

a5
a8

a6

Push value

a6
a5
a8

+

Add

(a5+a6)

a8

Pop a6 and a5, add them, push result to st ac k

*

Multiply

a8*(a5+a6)

Pop (a5+ a6) and a8, mult iply t hem, pus h result t o st ac k

a4

Push value

a4

a8*(a5+a6)

-

Subtract

a8*(a5+a6) - a4

Pop a4 and a8*(a5+a6), subtract t hem, push result t o s t ack

Input

Operation

Stack

Comment

d1

Push value

d1

d2

Push value

d2
d1+OR

(d1+d2)

Pop d1 and d2, OR them, push result to s t ac k

d3

Push value

d3

(d1+d2)

*

AND

(d1+d2)*d3

Pop (d1+ d2) and d3, A ND them, push result to s t ack

r1

Push value

r1

(d1+d2)*d3

=

Assign Value

r1=(d1+d2)*d3

Pop (d1+ d2)*d3 and r1and assign value to r1

How equa tion s are eva l uated:

Calculations are performed from left -to-right until the end of the equat i on is reached. As t he equation is pars ed, each
token's value is pushed onto a stack until an operat or is found. When an operator is found, t he previous 2 values are
popped from the stack and are us ed to perform the operat ion (the first item popped i s t he SECOND operand). The
result of the operation is then pushed ont o t he st ack. This repeat s until t he end of t he equation is reac hed. A n
equat i on is vali d only if there is exactl y ONE it em left in the st ack when the end of the equation is reached.

Example of how an equat i on is evaluated:

Equation: a8 a5 a6 + * a4 -

In this example, after the subt ract ion there is only ONE it em lef t in the s t ack (which is t he result of all of t he

previous c omputations), making this a valid equation.

Equation: d1 d2 + d3 * r1 =

In this example, after the assignment, t here is only ONE it em left i n the st ac k (which is t he result of all of t he

previous c omputations), making this a valid equation.

Ping Targets10.11

Provisioning Pi ng Targe ts

ID

ID number for the ping target .

Enab

Check this box t o enable the ping target.

Description

User-definable des c ription for t he ping target.

Se rve r (IP or

Hostname)

IP address or hostname of the device you would l ik e t o ping.

Notification Devi ce s

Check which notification device(s), 1 through 8, y ou want to send alarm
notifications for ping target.

The Provisioning > Pin g Targe ts menu allows you to c onfigure the Description, IP Address, and Notification
Devices for eac h of your pi ng targets.

The Provis i oning > Ping Targets menu

47

48

Editing Syste m Alarms

Pnt (Point)

The syst em alarm point number

Description

Non-editable description for t his S y s t em (housekeeping) Alarm .

Silence

Check this box t o choose to s il ence this alarm.

Notification Devi ce s

Check which notification device(s), 1 through 8, y ou want to send alarm
notifications for that alarm point.

System Alarms10.12

See "Display Mapping" in the Reference Section for a c omplete desc ription of sys t em alarms.

The Provis i oning > System A larms menu

Timers10.13

Enter the amount of time in s ec onds (s ec) or minutes (m), in each value field and click Save.

49

The Provis i oning > Timers menu

50

Unit Time

Date

Set today's date.

Time

Set the c urrent time.

Automatic Time Adjustment (NTP)

Enable NTP

Check this box t o enable Network Time Protocol.

NTP Se rve r Addre ss or Host Name

Enter the NTP server's IP address or host name, then click Sync.
Example: us.pool.ntp.org. Note: Make s ure to configure DNS before using
host name instead of IP address.

Time Zone

Select your time zone from the drop-down menu.

Adjust Clock for Daylight Savings Time (DST)

Enable DST

Check this box t o have the NetGuardian 224A obs erve Daylight Savings.

Start Day

Select t he month, weekday, and time when Day li ght Savings will begin.

End Day

Select t he month, weekday, and time when Day li ght Savings will end.

Date an d T ime10.14

The Provis i oning > Date and Ti me menu

51

Basic Al arm Mo ni toring

ID

Alarm ID number.

Description

User-definable des c ription for t he disc rete alarm point.

State

The current stat e of the alarm. (Clear or Alarm)

11

M o n i to rin g via the Web Browser

Alarms11.1

This selec tion provides the s tatus of the base alarms by indic at i ng if an alarm has been triggered. Under the State
column, the s t atus will appear in red if an alarm has been ac t i vat ed. The status will be displayed in green when the
alarm condition is not present.

Click on Alarms i n the Monit or menu to see if any base alarms (1-8) have been triggered.

52

Control Relay Operation

ID

ID number for the control relay.

Description

Description for t he NetGuardian 224A's control relay defi ned in the Provisioning >
Controls menu.

State

Status of the control relay. Can either be Released or Latched.

Command

OPR - Latch the relay.
RLS - Release the relay.
MOM - Momentarily latc h t he relay, then automatically release the relay. The

durat ion of the latch is defined in t he Provisioning > Controls menu.

Controls11.2

Use the following rules to operate the NetGuardian 224A's control:

1. Select Controls from the Monitor menu.

2. Unde r the State field, y ou can see the current condition of the c ontrol.

3. To is s ue the control, c l ic k on a command (OPR - oper ate, RLS - release, or MOM - momentary)

View and operate c ontrol relays f rom the Monit or > Controls menu

Sensors11.3

This selec tion provides the s tatus of the syst em's analog channels by indic at ing if an alarm has been triggered. The
Monitor > Sensors screen provides a desc ription of eac h analog channel, t he current reading, t he units being read,
and al arm conditions (major under, mi nor under, major over, minor over) acc ording to your temperature sett ings. If
configu red under Provisioning > Sensors, your analog values will be displayed as a graphic al gauge. Selecti ng

Tabl e Vi ew will display a non-graphical interface of y our values.

53

The Monitor > Sensors menu

54

User Analogs11.4

On the Monitor > User A nal ogs menu , you can moni t or all analog i nputs. The most recen t
measurement will be shown, and any alarm thre sho lds crossed will b e shown in shown in either o range
for mino r alarms or red for major alarms.

Fig. 12.5 Current s t atus of all analog inputs in the Monit or > User Analogs in Table View.

Fig. 12.6 Current s t atus of all analog inputs in the Monit or > User Analogs in Gauge Vi ew.

Note: The analog gauges do not account for the us er definable Deadband. This may result in an alarm thres hold to
appear cross ed in the gauge animation when the point has not s et or cleared.

Ping Targets11.5

Ping Targets can be viewed by going to Monitor > Pi ng Targe ts. Here you can view the state (either Clear or
Alarm) for each of your c onfigured Ping Targets .

View t he st atus of P ing Targets from the Monit or > P ing Targets menu.

55

56

System Alarms11.6

System alarms are not-edit able, housekeeping alarms that are programmed int o NetGuardian 224A. The Monitor >
Syste m Alarms screen provides t he st at us of the sys t em alarms by indicat ing if an alarm has been triggered. Under

the State c olumn, t he st atus will appear i n red if an alarm has been ac t ivat ed. The status will be displayed in green
when the alarm condition is not present.

See "Display Mapping" in the Reference Section for a c omplete desc ription of sys t em alarms.

View t he st atus of S yst em A larms f rom the Moni t or > Syst em A larms m enu.

Graph11.7

The Graph section of the m onitor menu lets you build a graph of pas t analog and s ensor measurements, which gives
you a visual indication of dat a over time and points out trending values . To creat e y our Graph, specify the Channel
(Analogs 1-8 or Sensors 1-32), Group Interval (1-120 minutes , hours, days , or weeks), the Group Func t ion (Average,
Min, Max), and Start & E nd Times. Once you have entered all of the des i red values, cl ic k " B uild Graph."

57

Provision the Channels, Group Interval, Group Function and more - all from the

Graph P arameters sect i on of the web browser interface.

Your graph will appear on the next sc reen. This graph is Adobe Flash-based and allows y ou to mouse over the lines
to quickl y view measurements (date, time, and value) wit hin their context of the overall graphing t rend. Below the
graph is a full text ual lis t of all indexed points with their dates and values .

58

Device Access Option

Description

Backup Config

Back s up the units configuration sett ings

Read

Reads a c onfiguration file from t he unit

Write

Commits all c hanges made in the web interface to the Net Guardian 224A's non-volatile

memory

Initialize

Sets t he unit's configurati on to factory default values

Get Audit Log

Opens the Net Guardian 224A's audit log in Notepad (or anot her plain text editor).

Purge Audit Log

Deletes the NetGuardian 224A's audit log hist ory.

Reboot

Reboots the NetGuardian 224A.

12

The De vice Access options, listed in pink on the left s ide of the web interface, provide options for generating reports ,
updating the NetGuardian 224A's firmware, and rebooting the unit. Clic k any of the options under Device Access to
perform the desired ac t i on.

Devi ce Access Descriptio n s

The control menu i s loc ated in the b ott om lef t of t he web int erface

59

13

With the NetGuar d ian 224A you can backup your current c onfiguration from the Web Interface. These c onfigurat ion
files can t hen be uploaded later, or uploaded to other Net Guardian 224A units.

How to ba ckup your current configura tio n:

1. Click t he Bac k up Config tab from the Devic e A c c es s m enu.

2. When prompted by y our web browser, download the file to your des k t op or other location on your computer.

3. Now y our configuration should be saved. If y ou need to upload a configuration, follow the steps below.

Backup Con fi g u ration

The Backup Config tab is loc ated in the Device Acces s m enu shown above.

To upload you r configuration file, click on Upload on the top right corner of t he web interfac e

How to upload a save d configuration:

1. Click t he upload but t on at the top right corner of the Welc ome screen.

2. Click t he Browse... butt on

3. Browse to the location of t he .bin file from t he st eps above.

4. Select that .bin file and press the Upload button.

5. You should now have the same configuration s ett ings l oaded from when you saved the .bin fi le above.

60

14

T o access the F i rm wa re Loa d screen, click on the Provisioning > System menu. A t t he bottom of this sc reen,
click the Restore Configuratio n link located in the S yste m Controls section.

Firmware Up g rade

To upload firmware, click on Upload on the top right c orner of the web interface

At the Firm wa re Loa d screen, simply bro wse for the firmware update you've downloaded from www.dpstele.com
and click Load.

61

Description

Port

Address

Point

Displ ay 1

Discrete Alarms 1-24

9911-24

Undefined991

25-32

Default Confi guration

99133

DIP S witc h Config

99134

MAC Address Not Set

99135

IP Addres s Not Set

99136

LAN Hardware E rror

99137

SNMP Proces s ing Error

99138

SNMP c ommunity error

99139

LAN TX pack et drop

99140

Notification Failed 1-8

99141-48

NTP failed

99149

Tim ed Tick

99150

Serial 1 RcvQ full

99151

Dynamic memory full

99152

Unit reset991

53

DCP pol ler inactive

99154

Reserved991

55-64

Displ ay 2

Ping Alarms 1-32

9911-32

Controls 1-2

99133-34

Undefined991

35-64

Displ ay 3

Analog 1 Minor Under

9911

Analog 1 Minor Over

9912

Analog 1 Major Under

9913

Analog 1 Major Over

9914

Reserved (CTRL)

9919-16

Value991

17-32

Analog 2 Minor Under

99133

Analog 2 Minor Over

99134

Analog 2 Major Under

99135

Analog 2 Major Over

99136

Reserved (CTRL)

99141-48

Value991

49-64

15

Reference Secti o n

Dis p lay Mappin g15.1

Display Mapping

62

Description

Port

Address

Point

Displ ay 4

Analog 3 Minor Under

9911

Analog 3 Minor Over

9912

Analog 3 Major Under

9913

Analog 3 Major Over

9914

Reserved (CTRL)

9919-16

Value991

17-32

Analog 3 Minor Under

99133

Analog 3 Minor Over

99134

Analog 3 Major Under

99135

Analog 3 Major Over

99136

Reserved (CTRL)

99141-48

Value991

49-64

Displ ay 5

Digital Sensor 1 Minor Under

9911

Digital Sensor 1 Minor Over

9912

Digital Sensor 1 Major Under

9913

Digital Sensor 1 Major Over

9914

Digital Sensor 1 Not detect ed

9915

Digital Sensor 1 HV A C Fail

9916

Digital Sensor 1 Air Flow Below Normal

9917

Digital Sensor 1 Mate not det ec t ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 2 Minor Under

99133

Digital Sensor 2 Minor Over

99134

Digital Sensor 2 Major Under

99135

Digital Sensor 2 Major Over

99136

Digital Sensor 2 Not detect ed

99137

Digital Sensor 2 HV A C Fail

99138

Digital Sensor 2 Air Flow Below Normal

99139

Digital Sensor 2 Mate not det ec t ed

99140

Control991

41-48

Value991

49-64

Displ ay 6

Digital Sensor 3 Minor Under

9911

Digital Sensor 3 Minor Over

9912

Digital Sensor 3 Major Under

9913

Digital Sensor 3 Major Over

9914

Digital Sensor 3 Not Detect ed

9915

Digital Sensor 3 HV A C Fail

9916

Digital Sensor 3 Air Flow Below Normal

9917

Digital Sensor 3 Mate not det ec t ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 4 Minor Under

99133

Digital Sensor 4 Minor Over

99134

Digital Sensor 4 Major Under

99135

Digital Sensor 4 Major Over

99136

Digital Sensor 4 Not Detected

99137

Digital Sensor 4 HV A C Fail

99138

Digital Sensor 4 Air Flow Below Normal

99139

Digital Sensor 4 Mate not det ec t ed

99140

Control991

41-48

Value991

49-64

Display Mapping

63

Description

Port

Address

Point

Displ ay 7

Digital Sensor 5 Minor Under

9911

Digital Sensor 5 Minor Over

9912

Digital Sensor 5 Major Under

9913

Digital Sensor 5 Major Over

9914

Digital Sensor 5 Not Detect ed

9915

Digital Sensor 5 HV A C Fail

9916

Digital Sensor 5 Air Flow Below Normal

9917

Digital Sensor 5 Mate not det ec t ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 6 Minor Under

99133

Digital Sensor 6 Minor Over

99134

Digital Sensor 6 Major Under

99135

Digital Sensor 6 Major Over

99136

Digital Sensor 6 Not Detect ed

99137

Digital Sensor 6 HV A C Fail

99138

Digital Sensor 6 Air Flow Below Normal

99139

Digital Sensor 6 Mate not det ec t ed

99140

Control991

41-48

Value991

49-64

Displ ay 8

Digital Sensor 7 Minor Under

9911

Digital Sensor 7 Minor Over

9912

Digital Sensor 7 Major Under

9913

Digital Sensor 7 Major Over

9914

Digital Sensor 7 Not Detect ed

9915

Digital Sensor 7 HV A C Fail

9916

Digital Sensor 7 Air Flow Below Normal

9917

Digital Sensor 7 Mate not det ec t ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 8 Minor Under

99133

Digital Sensor 8 Minor Over

99134

Digital Sensor 8 Major Under

99135

Digital Sensor 8 Major Over

99136

Digital Sensor 8 Not Detect ed

99137

Digital Sensor 8 HV A C Fail

99138

Digital Sensor 8 Air Flow Below Normal

99139

Digital Sensor 8 Mate not det ec t ed

99140

Control991

41-48

Value991

49-64

Displ ay 9

Digital Sensor 9 Minor Under

9911

Digital Sensor 9 Minor Over

9912

Digital Sensor 9 Major Under

9913

Digital Sensor 9 Major Over

9914

Digital Sensor 9 Not Detect ed

9915

Digital Sensor 9 HV A C Fail

9916

Digital Sensor 9 Air Flow Below Normal

9917

Digital Sensor 9 Mate not det ec t ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 10 Minor Under

99133

Digital Sensor 10 Minor Over

99134

Digital Sensor 10 Major Under

99135

Digital Sensor 10 Major Over

99136

Digital Sensor 10 Not Detected

99137

64

Digital Sensor 10 HV AC Fail

99138

Digital Sensor 10 Air Flow B elow Normal

99139

Digital Sensor 10 Mate not detect ed

99140

Control991

41-48

Value991

49-64

Display Mapping

65

Description

Port

Address

Point

Displ ay 10

Digital Sensor 11 Minor Under

9911

Digital Sensor 11 Minor Over

9912

Digital Sensor 11 Major Under

9913

Digital Sensor 11 Major Over

9914

Digital Sensor 11 Not Detect ed

9915

Digital Sensor 11 HV AC Fail

9916

Digital Sensor 11 Air Flow B elow Normal

9917

Digital Sensor 11 Mate not detect ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 12 Minor Under

99133

Digital Sensor 12 Minor Over

99134

Digital Sensor 12 Major Under

99135

Digital Sensor 12 Major Over

99136

Digital Sensor 12 Not Detect ed

99137

Digital Sensor 12 HV AC Fail

99138

Digital Sensor 12 Air Flow B elow Normal

99139

Digital Sensor 12 Mate not detect ed

99140

Control991

41-48

Value991

49-64

Displ ay 11

Digital Sensor 13 Minor Under

9911

Digital Sensor 13 Minor Over

9912

Digital Sensor 13 Major Under

9913

Digital Sensor 13 Major Over

9914

Digital Sensor 13 Not Detect ed

9915

Digital Sensor 13 HV AC Fail

9916

Digital Sensor 13 Air Flow B elow Normal

9917

Digital Sensor 13 Mate not detect ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 14 Minor Under

99133

Digital Sensor 14 Minor Over

99134

Digital Sensor 14 Major Under

99135

Digital Sensor 14 Major Over

99136

Digital Sensor 14 Not Detect ed

99137

Digital Sensor 14 HV AC Fail

99138

Digital Sensor 14 Air Flow B elow Normal

99139

Digital Sensor 14 Mate not detect ed

99140

Control991

41-48

Value991

49-64

Displ ay 12

Digital Sensor 15 Minor Under

9911

Digital Sensor 15 Minor Over

9912

Digital Sensor 15 Major Under

9913

Digital Sensor 15 Major Over

9914

Digital Sensor 15 Not Detect ed

9915

Digital Sensor 15 HV AC Fail

9916

Digital Sensor 15 Air Flow B elow Normal

9917

Digital Sensor 15 Mate not detect ed

9918

Control991

9-16

Value991

17-32

Digital Sensor 16 Minor Under

99133

Digital Sensor 16 Minor Over

99134

Digital Sensor 16 Major Under

99135

Digital Sensor 16 Major Over

99136

Digital Sensor 16 Not Detected

99137

66

Digital Sensor 16 HV AC Fail

99138

Digital Sensor 16 Air Flow B elow Normal

99139

Digital Sensor 16 Mate not detect ed

99140

Control991

41-48

Value991

49-64

Display

Point

Description

1

33

Default Confi guration

34

DIP S witc h Configuration

35

MAC Address Not Set

36

IP Addres s Not Set

37

LAN hardware error

38

SNMP Proces s E rror

39

SNMP Community E rror

40

LAN TX pack et drop

41

Notification 1 Failed

42

Notification 2 Failed

43

Notification 3 Failed

44

Notification 4 Failed

45

Notification 5 Failed

46

Notification 6 Failed

47

Notification 7 Failed

48

Notification 8 failed

49

NTP Failed

50

Tim ed Tick

51

Serial 1 RcvQ full

52

Dynamic Memory Full

53

Unit Reset

54

DCP Poller inac t i ve

Display Mapping

System Alarms15.2

System A larms

SNMP Manager Fu n ctions15.3

Tbl. B1 (O.)_OV_Traps

points

_OV_vTraps

(1.3.6.1.4.1.2682.1.2.0)

PointSet (. 20)

PointClr (.21)

SumPS et (.101)

SumPClr (.102)

ComFailed (. 103)

ComRes t ored (.014)

P0001Set (.10001) through

P0064Set (.10064)

P0001Clr (.20001) through

Tbl. B2 (.1) Ide ntity points

Ident

(1.3.6.1.4.1.2682.1.2.1)

Manufact urer (.1)

Model (.2)

Firmware Versi on (.3)

DateTime (.4)

ResyncReq (.5)*

* Must be set t o "1" t o perform the
resync request which will resend TRAPs
for any s t anding alarm.

Tbl. B3 (.2) DisplayGrid

points

DisplayEntry

(1.3.6.1.4.1.2682.1.2.2.1)

Port (.1)

Address (.2)

Display (.3)

DispDesc (.4)*

PntMap (.5)*

Tbl. B3 (.3) ControlGrid

points

ControlGrid

(1.3.6.1.4.1.2682.1.2.3)

Port (.1)

Address (.2)

Display (.3)

Point (.4)

Act i on (.5)

Tbl. B6 (.6) Analog Cha nnel s

Channel Entry

(1.3.6.1.4.1.2682.1.4.6.1)

Channel Number (.1)

Enabled (. 2)

Description (.3)

Value (.4)

Thresholds (.5)*

*If Mj, Mn is as s umed

Tbl. B5 (.5) Alarm Entry

points

AlarmEntry

(1.3.6.4.1.2682.1.2.5.1)

Aport (.1)

AAddress (.2)

ADisplay (.3)

APoint (.4)

APntDesc (.5)*

ASt ate (.6)

* For specific alarm point s , see
Table B6

The SNMP M anager allows t he user to view alarm status, s et date/ t ime, is sue controls, and perform a resync. The
display and tables below outl ine the MIB object identifiers. The table below begins with dpsRTU; however, the MIB
object identifier tree has several levels above it. The full English name is as fol l ows:
root.iso.org.dod.internet.private.enterprises.dps -Inc.dpsAlarmControl.dpsRTU. Therefore, dpsRTU's full object
identifier is 1. 3.6. 1.4.1. 2682.1.2. Eac h level beyond dpsRTU adds another object identifying number. For ex ample,
the object identifier of the Display portion of the Control Grid is 1. 3.6. 1.4.1. 2682.1.2.3.3 because the object identifier
of dps RTU is 1. 3.6.1. 4.1. 2682.1.4 + the Control Grid (.3) + the Display (.3).

67

68

UDP Header

Description

1238

Source port

162

Destination port

303

Length

0xBAB0

Checksum

SNMP Header

Description

0

Version

Public

Request

Trap

Request

1.3.6.1.4.1.2682.1.4

Enterprise

126.10.230.181

Agent addres s

Enterprise Specific

Generic Trap

8001

Specific Trap

617077

Tim e s t amp

1.3.7.1.2.1.1.1.0

Object

NetGuardian 224A v1.0K

Value

1.3.6.1.2.1.1.6.0

Object

1-800-622-3314

Value

1.3.6.1.4.1.2682.1.4.4.1.0

Object

01-02-1995 05:08:27.760

Value

1.3.6.1.4.1.2682.1.4.5.1.1.99.1.1.1

Object

99

Value

1.3.6.1.4.1.2682.1.4.5.1.2.99.1.1.1

Object

1

Value

1.3.6.1.4.1.2682.1.4.5.1.3.99.1.1.1

Object

1

Value

1.3.6.1.4.1.2682.1.4.5.1.4.99.1.1.1

Object

1

Value

1.3.6.1.4.1.2682.1.4.5.1.5.99.1.1.1

Object

Rectifier Failure

Value

1.3.6.1.4.1.2682.1.4.5.1.6.99.1.1.1

Object

Alarm

Value

SNMP Granular Trap Pack ets15.4

The tables below provi de a list of the information contained in the SNMP Trap packets sent by the NetGuardian
224A.

SNMP Trap ma nagers can use one of two methods to get alarm information:

1.Granular traps (not necessary to define point des criptions for the NetGuardian 224A) OR

2.The SNMP manager reads t he description from t he Trap.

UDP Headers and des criptions

SNMP Headers and des c riptions

69

16

Here are answers t o s ome comm on questions from Net Guardian 224A users. The lat es t FA Qs c an be found on the
NetGuar d ian 224A support web page, http://www.dpstele.com.

If you have a question about the NetGuardian 224A, please call us at [phone] or e-mail us at

[e-mail].

Frequently Asked Questions

General FAQs16.1

Q. How do I te l net to the NetGua rdi an 224A?
A. You must use Port 2002 to connect t o the NetGuardian 224A. Configure your Telnet client t o c onnect usi ng

TCP/ IP (not "Tel net," or any other port options). For connection informat i on, enter the IP address of the
NetGuardian 224A and P ort 2002. For example, to connect to the NetGuardian 224A using the standard
Windows Tel net c lient, c l ic k St art, c l ic k Run, and t ype "telnet <NetGuardian 224A IP addres s > 2002."

Q. How do I connect my NetGuardi an 224A to the LAN?
A. To c onnect y our NetGuardian 224A to your LAN, you need to c onfigure the unit IP addres s , t he subnet mask

and the default gateway . A sample configuration could look lik e this :

Unit Address: 192.168.1.100
s ubnet mas k: 255.255.255.0
Defaul t Ga te way: 192.168.1.1

Save your changes by writing to NVRA M and reboot. A ny c hange to the unit's IP c onfigurat ion requires a reboot.

Q. Whe n I connect to the NetGua rdi an 224A through the craft port on the front panel i t e i the r do esn't

wo rk right or it doesn't w o rk a t a l l . Wha t's go i ng on?

A. Make sure your using the right COM port setti ngs. Y our COM port settings should read:

Bits pe r second: 9600 (9600 baud)
Data bi ts: 8
Parity: None
Stop bits: 1
Flow control: None
Important! Flow control must be set to none. Flow control normally defaults t o hardware in most t erminal

programs, and this will not work correctly wit h the NetGuardian 224A.

Q. The LAN link LED is gre en on m y NetGua rdi an 224A, but I can't poll i t from my T/ Mon .
A. Some routers will not forward pac kets t o an IP address until the MAC address of the des t ination device has

been regist ered on the router's Address Resolution Protocol (ARP) table. Enter the IP address of your gat eway
and your T/Mon sy s t em t o the ARP t able.

70

SNMP FAQs16.2

Q. Which ve rsion of SNMP is supported by the S NMP agent on the Ne tGua rdi an 224A?
A. SNMP v1, S NMPv2 and SNMPv3.

Q. How do I configure the Ne tGua rdi an 224A to send tra ps to an S NMP m ana ger? I s there a separate M I B

for the NetGua rdi an 224A? How many SNMP m anage rs can the age nt send traps to? And how do I set
the IP address of the SNMP m anage r and the com m un i ty string to be used whe n sending tra p s?

A. The NetGuardian 224A begins sending traps as soon as the SNMP notification ty pe is s et up. The NetGuardian

224A MIB can be found on t he DPS Telecom website. The M IB should be compiled on y our SNMP manager.
(Note: MIB versions may c hange in the future.) For step-by-step instruct ions, refer bac k t o the "How to Send
SNMP Traps " s ec t ion of the us er manual.

Q. Doe s the NetGuardi an 224A support MIB-2 and/or any other standard M I Bs?
A. The NetGuardian 224A supports the bulk of MIB -2.

Q. Doe s the NetGuardi an 224A SNMP agent support both NetGua rdi an 224A and T/Mo nX M va ri abl es?
A. The NetGuardian 224A SNMP agent manages an embedded MIB that support s only t he NetGuardian 224A's

RTU variables. The T/MonXM variabl es are included in the distributed MIB only t o provide SNMP managers with
a single MIB for all DPS Telecom product s .

Q. How many traps are trigg ere d whe n a single poi nt is set or clea red? The MIB de fi nes tra ps like "m ajo r

al arm set/clea red," "RTU point se t," and a l ot of gra nul ar traps, wh i ch could i m pl y tha t more tha n one
trap is sen t w hen a change o f sta te occurs on one point.

A. Generally , a s ingle change of st at e generat es a si ngle trap.

Q. Wha t does "poi nt map" mean?
A. A point map is a single MIB leaf that pres ents t he current status of a 64-alarm-point dis play in an ASCII-readable

form, where a " . " represents a clear and an " x " represents an alarm.

Q. The Ne tGua rdi an 224A manua l talks about control relay outputs. How d o I control the se from my

SNMP manage r?

A. The control relays are operated by is s uing the appropriate set commands, which are contained in t he DPS

T elecom MIB.

Q. How can I associate descri ptive information with a point for the RTU granul ar traps?
A. The NetGuardian 224A alarm point desc riptions are individually defined using the W eb Browser.

Q. M y SNMP tra ps are n't ge tting through. What shoul d I try?
A. Try t hese three steps:

1. Make sure that the Trap Address (IP addres s of the SNMP manager) is defined. (If you changed t he Trap
Address, mak e s ure you saved the change to NV RAM and reboot ed.)

2. Make sure all alarm point s are configured to send SNMP traps.

3. Make sure the NetGuardian 224A and t he SNMP manager are both on the net work. Use t he unit's ping
command to ping the SNMP manager.

71

17

DPS Tel ecom products are backed by our court eous, friendly Technical Support representatives , who will give you
the best in fast and accurate cust omer service. To help us help you better, please take the following s t eps before
calling Tec hnic al Support:

1. Check the DPS Telecom we bsite.

2. Pre pare releva nt inform ation.

3. Have access to troubled equip m ent.

4. Cal l duri ng Custom er Support hours.

Technical Sup p o rt

You will find answers to many common questions on the DPS Telecom website, at http://www.dpstele.com/
support/. Look here first for a fast s olution to y our problem.

Having important i nformat ion about your DPS Telecom product in hand when you call will greatly reduce the time it
takes t o answer your quest ions. If you do not have all of the information when y ou call, our Tec hnical S upport
representat ives can assis t y ou in gathering i t . Pl ease write the information down for easy acc es s . P lease have
your user manual and hardware serial number ready .

Please be at or near your equipm ent when you call DPS Telec om Technical Support. This will help us solve y our
problem m ore efficiently.

Customer support hours are Monday t hrough Friday , from 7 A.M. t o 6 P.M . , P aci fic t ime. The DP S Telecom
T echnical Suppo r t phone number is [phone].

Emergency As sis tance: E mergency assis t ance is available 24 hours a day, 7 days a week. For emergenc y
assistance aft er hours, allow t he phone t o ring until it is answered wit h a paging m essage. You will b e as ked to ent er
your phone number. An on-call technical s upport representat ive will return your call as soon as possib l e.

72

18

All Software and firmware used in, for, or in connection with the Product, parts, s ubs y s t ems , or derivatives t hereof, i n
whatever form, including, without limitat ion, s ource code, object code and microcode, including any computer
programs and any documentation relating to or desc ribing such Software is furnished to the End User only under a
non-exclusive perpetual license solely for End User's use with the Product.

The Software m ay not be copied or modified, in whole or in part, for any purpose whatsoever. The Software may not
be reverse engineered, c ompiled, or disass embled. No tit le to or ownership of the Soft ware or any of its parts is
transferred to the End User. Tit le t o all patents, c opyrights , t rade secrets, and any other applic able rights s hall
remain wit h the DPS Telecom.

DPS Tel ecom's warrant y and limit ati on on its li ability for t he Software is as desc ribed in the warranty informat i on
provided t o End User in the Produc t M anual.

End User shall indemni fy DPS Telecom and hold it harmless for and against any and all claims , damages, los s es ,
cost s , ex penses, obligations, li abiliti es, fees and costs and all amounts paid in settlement of any claim, act i on or
suit which may be ass erted against DPS Telecom which arise out of or are related to the non-fulfillment of any
covenant or obligation of End User in connection with this Agreement.

This A greement shall be construed and enforc ed in acc ordance with the laws of the State of Cali fornia, wit hout
regard to choic e of law principles and exc luding the provisions of the UN Convent ion on Cont ract s for the
International Sale of Goods. A ny dis pute arising out of t he Agreement shall be commenced and m aintained only in
Fresno County , California. In the event suit is brought or an att orney is retained by any party to this A greement to
seek interpretation or construction of any t erm or provision of t his A greement, to enforc e the terms of this
Agreement , t o c ollec t any money due, or to obtain any m oney damages or equit able relief for breach, t he prevailing
party shall be entitled to recover, in addition to any ot her available remedy, reimbursement for reasonable at t orneys'
fees , c ourt c ost s, c os t s of investigation, and other related expenses.

End User License Agreemen t

73

Warranty

DPS Telecom w ar r ants, to the original purchaser only, that its products a) substantial ly conform to DPS' published
specifications and b) are substantiall y free fr om defects in m aterial and workmanship. This warranty expires two years from the
date of product deli very wi th respect to hardware and ninety days from the date of product delivery with respect to software.
If the purchaser discovers within these periods a failure of the product to substantiall y conform to the specif ications or that
the product is not substantiall y free fr om defects in m aterial and workmanship, the purchaser must promply notify DPS . Within
reasonable tim e after notif ication, DPS will endeavor to correct any substantial non-conformance with the specifications or
substantial defects in m aterial and workmanship, with new or used replacement parts. All warranty service wil l be performed at
the company's offi ce i n Fresno, Cal ifornia, at no charge to the purchaser, other than the cost of shipping to and from DPS,
which shall be the responsibli ty of the purchaser. If DP S is unable to repair the product to conform to the warranty, DP S will
provide at its option one of the following: a replacement product or a refund of the purchase pri ce for the non-conforming
product. These remedies are the purchaser's only remedies for breach of warranty. Prior to initial use the purchaser shall have
determined the suitabili ty of the product for its intended use. DPS does not warrant a) any product, components or parts not
m anufactured by DPS, b) defects caused by the purchaser's failure to provide a suitable installation environment for the
product, c) damage caused by use of the product for purposes other than those for which it was designed, d) damage caused
by disasters such as fi re, flood, wind or lightning unless and to the extent that the product specif ication provides for
resistance to a defined disaster, e) damage caused by unauthorized attachments or modifications, f) dam age during shipment
from the purchaser to DPS, or g) any abuse or misuse by the purchaser.

THE FOREGOING WARRANTIES ARE I N LIEU OF AL L OTHER WARRANTIES, EXPR ESS OR IMPLIED, I NCL UDING B U T
NOT LIMITE D TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITN ESS FO R A PARTICUL AR
PURPOSE.

In no event will DPS be li able for any special, incidental, or consequential damages based on breach of w arr anty, breach of
contract, negligence, strict tort, or any other legal theory. Dam ages that DPS will not be responsible for i nclude but are not
limited to, loss of profits; loss of savings or revenue; loss of use of the product or any associated equipment; cost of capital;
cost of any substitute equipment, facilities or services; downtime; claims of third parties including custom er s; and injury to
property.

The purchaser shall f ill out the requested information on the Product Warranty Card and m ai l the card to DPS. This card
provides information that helps DPS make product improvements and develop new products.

For an additional fee DP S may, at its option, make avail able by written agreement only an extended warranty providing an
additional period of time for the appli cabil ity of the standard warranty.

Technical Support

If a purchaser believes that a product is not operating in substantial conform ance with DPS' published specifications or there
appear to be defects in material and workmanship, the purchaser should contact our technical support representatives. If the
problem cannot be corrected over the telephone and the product and problem are covered by the warr anty, the technical
support representative wil l authorize the return of the product for service and provide shipping information. If the product is
out of warranty, repair charges will be quoted. All non-w arr anty repairs receive a 90 -day warranty.

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