No. 377, Nehru Nagar, Chennai, Tamil Nadu

600096 Ph: 044-23454060,61

www.serteltelser.com,www.sertelelectronics.com

SERTEL GPS SYSTEM

A Sertel Electronics Manual

Contents

About 2

Problem Statement 2

Details 2

Abstract 2

Test/Inspection Report 2

Introduction 3

Active GPS Receiver (T-GPS-300) 4

GPS Antenna (T-GPA-014) 6

GPS Receiver (T-GPS-300) 7

Master Clock A & B (T-MA-300) 9

Redundant Comparator Unit A & B (T-

COM-300) 11

Signal Conditioner1 14

Signal Conditioner 2 16

Signal Conditioner 3 17

SERTEL NTP/SNTP CONFIGURATION

18

TCP/IP OUTPUT 32

TIME SYNCHRONISATION TCP/IP

OUTPUT 33

Signal Conditioner 4 36

Signal Distribution Amplifier 37

Digital Slave Clock (T-SL-300-100-6D)

38

Power Supply Unit 39

Diode O-ring Unit 40

Slave Clock Signal Booster Unit 41

Line Driver / Line Receiver 41

Warranty 43

About

This document is the Operation &

Maintenance, Installation manual for Sertel

GPS / MASTER Clock.

Problem Statement

O & M Manual

Details

1) Installation Details

2) Settings details

Benefit 1

Sertel T-GPS-300 is a highly user-friendly

device. The operations are easy-to-

understand and completely simple for the

operator to handle. The system requires

absolutely less maintenance and has very

high MTBFs.

Abstract

Characteristics and technical details of

system & each output is Explained below.

Test/Inspection Report

Inspection Report

Introduction

The salient features of Sertel’s Synchronization system are as follows:

Master Clock and Slave Clock

• Synchronized to GPS receiver (through satellite)

• The slave clock can be connected to entire plant at various locations displaying the same

Various Time Synchronization equipments to which our outputs are compatible for time

synchronization

a) Electrical equipments Synchronization:

Event recorders, disturbance recorder, fault recorder and sequential event recorder.

PLC’s, data acquisition system and other intelligence or RTU (remote terminal unit).

b) Instrumentation Synchronization:

Intelligence instrumentation PLC’S, DCS, DAS, SCADA and other intelligence RTU’S.

c) Networking of Computers

d) Frequency Monitoring

e) Power Monitoring

f) Calibration for frequency

4

Active GPS Receiver (T-GPS-300)

A fundamental deficiency of any ephemeris extension system is unknown future

events. This is typically the issues faced by all GPS receivers. The receiver will not be able

to know about satellites that will have become unhealthy, have undergone a clock swap,

or have had a maneuver (change in position). This means that the GPS Receiver engine

might rarely mistake a wrong satellite position as the true satellite position. However,

provided that there are enough other good satellites, the Receiver algorithms will

eventually eliminate a defective orbit from the solution. Effectively two satellites are

enough for making this decision by the receiver. Any GPS receiver locking up on a GPS

satellite has to do a two-dimensional search for the signal.

The first dimension is time

The GPS signal structure for each satellite consists of a 1023 bit long

pseudo-random number (PRN) sequence sent at a rate of 1.023 megabits/sec,

i.e. the sequence repeats every millisecond. For this data acquisition, the receiver

needs to set an internal clock to the correct one of the 1023 possible time slots by

trying all possible values. Sertel’s GPS has NPL certified internal clock OCXOs which

maintain its timing accuracy of ns level. Most receivers stop and dwell at each of

the possible steps for a couple of milliseconds, i.e. the receiver take 1-2 seconds to

try all the possibilities.

The second dimension is frequency.

The receiver must correct for inaccuracies in the apparent Doppler frequency of

the satellite and "zero-beat" the signal. Usually a receiver's crystal oscillator may

be off by up to +/- 10 kHz or so, so there are 20ish frequency cells that have to be

tested. And this process must happen for all N satellites that are in use. So,

the acquisition process can be quite laborious depending on the sky view of the

antenna position.

5

The longer a receiver observes the sky the more satellites it will have seen. At the equator,

and with full sky view, approximately ten satellites will show up in a one hour window.

After four hours of observation approx.16 satellites (i.e. half the constellation), after 10

hours approx. 24 satellites (2/3rd of the constellation), and after approx. 16 hours the full

constellation will have been observed. Lower sky visibility reduces these figures. This

means any obstruction in line of sight of Antenna to the Receiver & the satellites. Further

away from the equator the numbers improve because the satellites can be seen twice a

day. E.g. at 47 degrees north the full constellation can be observed in approx. 12 hours

with full sky view.

The usual search strategy our receivers adopt to start at an oscillator frequency

predicted on the basis of

(a) What is current Receivers approximate position? (Based on either the last known

position or last sync position),

(b) Where are the satellites now and what is their apparent velocity (based on the

almanac data down linked from the satellite and stored in the receiver's

memory), and

(c) What is the best guess for the receiver's crystal oscillator error (based on the last

known error and the current temperature in case of OCXO). This is the reason

Sertel has its own OCXO which maintains a constant temperature through its oven

& helps reducing the error of crystal used substantially.

After the receiver "smells" a signal, it establishes two tracking loops

-- one is a phase-locked loop in the frequency domain and the other is a time-locked loop

in 1023 bit code space domain with the goal of tracking both the code and carrier phases

for that signal. Once it acquires lock on the first satellite it can start extracting data from

the GPS signals. From there on, after synchronization, timing accuracy is maintained at

1PPS level exactly matching the GPS epoch. Sertel’s GPS reception strategy is to start with

the highest satellites in the sky and try to get 2 satellites in lock.

6

After the first 2 are found, the receiver has a fairly complete story on the time/frequency

characteristics and it immediately opens up and looks for more satellites, and it uses

them after another 30-60 seconds (average 45 sec). This creates a completely healthy

environment to maintain a timing accuracy of the order of ‘ns’ level (certified by

NPL(India)). Sertel’s receivers have more physical channels, so they can do more parallel

searches requiring less overhead in terms of time.

Getting a lock on by the GPS receivers on the ground usually takes some time especially

where the receiver is in a moving vehicle or in dense urban areas. The initial time needed

for a GPS lock is usually dependent on how the GPS receiver starts. There are three types

of start - hot, warm and cold.

Summarizing,

GPS Antenna (T-GPA-014)

MODEL NO T-GPA-014

TYPE HELICAL

MOUNT FIXED(NECESSARY MOUNTING BRACKETS WILL BE PROVIDED)

AXIAL RATIO 5db

CO-AXIAL CABLE LOW LOSS CO-AXIAL CABLE(0.33db/meter), 100 METER ALONG WITH MATCHING CONNECTORS.

CONNECTOR TNC CONNECTOR

TOTAL GAIN OVER 30 db

NOISE FIGURE LESS THAN 2.6db

SUPPLY VOLTAGE 5V DC INTERNAL SUPPLY

OPERATING TEMPERATURE -30 TO + 80°C

STORAGE TEMPERATURE - 40 TO + 85°C

MOUNTING WALL MOUNTING

7

GPS Receiver (T-GPS-300)

Sertel’s GPS receiver Configuration is as follows

Numbers of channel 16 channels

Position-Fixing System All-In-View SPS (DGPS RTCM-SC104)

Frequency 1575.42 MHz

Tracking Capability 12 Satellites simultaneously including 1 WAAS supporting channel

Number of Parallel Searches 16

Protocol NMEA Type

WAAS Support 1 Channel

Uses DGPS and the function to deselect unhealthy satellites

GPS-Fix data Renewal Rate 1 Second

1PPS Output UTC-Synchronized (1 pulse/second)

8

Acquisition/Tracking Specifications

Initial Acquisition Time 8.4 Seconds Hot Start (Open Sky)

36 seconds Warm Start (Open Sky)

44.9 Seconds Cold Start (Open Sky)

Re-acquisition Time 2 Seconds

(-127dBm or stronger signal interrupted for 10 seconds or less)

Horizontal Accuracy (2drms) 5.6m

Vertical Accuracy (2drms) 7.3m

Power Supply

Supply Voltage / Current Voltage: 3.0 to 3.6 Vdc

Current: Max 72 mA at 3.6 Vdc

External Back-up power Voltage: 2.1 to 3.6 Vdc

Current: 200 uA when Vcc = 3.6 Vdc

10uA when Vcc = 0.0 Vdc

Ambient Conditions Operating temperature: -30°C - +80°C

Storage temperature: -40°C - +85°C

Dimensions 20.8 mm (w) x 33.8 (l) x 6.3 mm (h)

Mass 8g (0.2 oz)

9

Master Clock A & B (T-MA-300)

Highly stable electronic clock system with in-built high stable Oven Controlled

Crystal Oscillators as time reference. Master Clocks are constantly monitored by the

outputs signals from Active GPS receiver to keep them in synchronism with the GPS

Receiver / time. The reference 1 PPS is maintained in sync with the epoch pulse of GPS.

OCXOs used as time reference in these clocks are quite stable with accuracy better than 1

PPM. Summarizing the features of our Master Clock,

10

MASTER CLOCK A & B (T-MA-300)

MODEL NO T-MA-300

TYPE MICRO CONTROLLER BASED

DISPLAY 7 SEGMENT LED (25 mm SIZE) TO DISPLAY TIME IN HH, MM AND SS (24HRS FORMAT) & IN DD , MM AND YY

TIME REFERENCE OVEN CONTROLLED CRYSTAL OSCILLATOR WITH STABILITY OF 1 PPM TEMPERATURE RANGE OF 0 - 50°C

TIME ACCURACY BETTER THAN 1 PPM

TIME/DATE SETTING THROUGH THUMB WHEEL SWITCH DATE/TIME TOGGLE SWITCH

INPUTS a) 1 PPS { FROM RS232C } RECIVER

INPUT CONNECTORS D' CONNECTOR 9 PIN FOR RS232 AND 1 PPS

OUTPUTS ISOLATED OUTPUT TO GPS/ MASTERCLOCK

OUTPUT CONNECTORS 9 PIN D CONNECTOR FOR SIGNAL OUTPUT TO GPS/ MASTER CLOCK

SUPPLY VOLTAGE 24V SUPPLY FROM DIODE ORING UNIT

ENVIRONMENT a) TEMP 0 -50°C b) TH 0-90% NON-CONDENSING

DATE/TIME DISPLAY ,TOGGLE S/W(DATE/TIME) THUMB WHEEL STATION. PUSH BUTTON S/W (ENTER),LOCK S/W WITH KEY

BACK PANEL ON/OFF SWITCH, FUSE AND POWERSUPPLY TERMINALS DATAOUTPUT TO COMPARATOR TERMINAL CONTACT OUTPUT TERMINALS

PANEL MOUNTING TO SUIT STANDARD 19" RACK SYSTEM

DIMENSION 484mm (W) 2U (H) 325mm (D)

Operational Procedure for Master Clock

Master clock is the master time signal generator which receives time from T-GPS-300RT

and generates the necessary signals for time synchronization of other devices.

Operations

Master Clock Allows Settings of Time and Date by operator

• When Master Clock Locks with GPS, no manual setting of DATE/TIME is allowed.

• Manual settings is allowed only when GPS lock fails.

11

Procedure for manual time/date settings

Set Date and Time using

THUMBWHEEL STATION SWITCH,

DATE / TIME TOGGLE SWITCH

Procedure to Set Date

Insert the key in RESET LOCK and turn to ON Position

Set DATE / TIME TOGGLE S/W to DATE Position.

Set the DATE through THUMBWHEEL SWITCH marked DD, MM, and YY.

FORMAT: D D M M Y Y

To Set 09-- MAR –2009 please enter 09 03 09

Enter the value by pressing the Enter push button

Procedure to Set Time

Set the DATE/ TIME TOGGLE S/W to TIME POSITION.

Set the time through THUMBWHEEL SWITCH marked HH, MM, and SS.

Example: HH:MM:SS

To set 10 hrs, 30 mins & 30 Secs set 10:30:30

� Enter the Value by pressing the enter push button

� Push RESET LOCK to OFF position and remove the key. This prevents any accidental

setting after Operators Setting is done.

Redundant Comparator Unit A & B (T-COM-300)

This Unit consists of 2 identical Redundant Comparator Modules connected to the

outputs of Master Clocks A & B. The Redundant Units receive the time signals generated

by the Master Clocks A & B compares them to assess synchronization. If the time data of

both clocks agree, the Redundant Comparator “A” generates the required outputs and

Redundant Unit “B” Through fully Operate is kept as Standby in case of mismatch. This

status is indicated in the panel, Full redundancy is obtained as shown below.

12

1. In case of non availability of 1 PPS signal from GPS units; the built in oscillator of GPS

receiver is used as time reference to update the GPS time system and give necessary time

outputs to Master Clock.

2. In case of failure of any one Master Clock; the signal are automatically generated by

the redundant clock.

3. In case of non functioning of both Master Clocks, the signals are fed directly from the

GPS Receiver of the Redundant Unit. This provision is normally not required. Only in

emergent case, this has to be activated by a manual switch available on the front panel.

The Redundant Comparator Units generate the following outputs:

Differential Pulse outputs to drive Slave Clocks.

IRIG B (AM) Output.

Alarm contacts to provide status alarm.

13

Redundant Comparator

MODEL T-COM-300

TYPE MICRO CONTROLLER BASED

DISPLAY NO DISPLAY ONLY LED INDICATION

TIME REFERENCE OVEN CONTROLLED CRYSTAL OSCILLATOR WITH STABILITY OF 1PPM TEMPERATURE RANGE OF 0-50°C

TIME ACCURACY BETTER THAN 1PPM

TIME/DATE SETTING AUTOMATICALLY SYNCHRONIZED WITH MASTER A OR B

INPUTS DATA SIGNALS FROM MASTER CLOCK A & B

INPUT CONNECTORS 9 PIN “D”CONNECTOR FOR MASTER A & B INPUT

OUTPUTS

A) IRIG B OUTPUT FROM SIGNAL CONDITIONER B) RS 232 OUTPUT (PROVISION) C) PULSE OUTPUT(PROVISION) D) DIFFERENTIAL PULSE TO SLAVE CLOCK E) ALARM CONTACT OUTPUT FOR MASTER SIGNAL FAIL F) NTP/SNTP OUTPUT G) TCP/IP OUTPUT

OUTPUT CONNECTORS

A) 9 PIN D CONNECTOR FOR RS 232 O/P B) BNC FOR IRIG B OUTPUT C) MOUNTING CONNECTOR SLAVE CLOCK CONTACT S,M, PULSE OUTPUT D) RJ45 CONNECTOR FOR NTP/SNTP E) RJ45 CONNECTOR FOR TCP/IP OUTPUT F) BARRIER CONNECTOR FOR PULSE OUTPUT

SUPPLY VOLTAGE 24V DC SUPPLY FROM REDUNDANT DIODE ORING UNIT.

ENVIRONMENT A) TEMPERATURE. 0-50°C B) RH : 0-90% NON-CONDENSING

FRONT PANEL A) MASTER A & B INPUT STATUS INDICATION LED INDICATION B) MASTER A & B(COMPARATOR) OUTPUT INDICATION LED C) COMPARATOR A & B INPUT FAIL INDICATION D) SIGNAL OUTPUT INDICATION

BACK PANEL ON / OFF SWITCH, FUSE, POWER SUPPLY TERMINALS ALL INPUT OUTPUT CONTACT TERMINALS

PANEL MOUNTING TO SUIT STANDARD 19” RACK SYSTEM

14

Signal Conditioner1

IRIG- B OUTPUT

IRIG-B standard time format by telecommunication working group. Inter range

instrumentation group range commanders council describes IRIG-B it is available by

writing secretly range commanders council. White sand missile range New Mexico

880022.

The standard time formats of IRIG-B Code were designed for us in missile, satellite

and space research programmers. Use of these code facilities efficient interchange of test

data. Those formats are suitable for recording on magnetic tape oscillo graphics film and

for real time transmission in both automatic manual data reduction. IRIG-B from the

SERTEL GPS / MASTER CLOCK system is suitable for remote display driving magnetic tape

recording and may other use.

IRIG-B codes in the strip sense encode Universal Co-ordinate Time (UTC) in 24

Hours format only, not local time. Nonetheless this instrument can encode UTC and IST

time in 24 hours format.

The frame length of IRIG-B is 1 second long and contains 100 elements (pulse) each

of which starts every 10 millisecond (un modulated) and 1 millisecond (modulated).

SERTEL GPS/MASTER CLOCK provides output of IRIG-B in amplitude modulated signal (1

KHz) output at rear panel of BNC Connectors. This will help us long distance

communication.

15

SIGNAL CONDITIONER FOR IRIG B

MODEL NO T-SC-300

TYPE AM 1KHZ SIGNAL

INDICATION LED INDICATION FOR IRIG B INPUT & OUTPUT

INPUTS IRIG B SIGNAL FROM GPS/MASTER CLOCK UNIT

INPUT CONNECTORS BNC (F) CONNECTOR FOR IRIG B

OUTPUTS IRIG B (AM) OUTPUT 1KHZ

OUTPUT CONNECTORS IRIG B (AM) THROUGH BNC CONNECTORS (F)

SUPPLY VOLTAGE 24V DC SUPPLY FROM DIODE ORING UNIT

ENVIRONMENT a) TEMPERATURE : 0-50°C b) RH 0-90% NON CONDENSING

FRONT PANEL LED INDICATION FOR IRIG B INPUT & OUTPUT POWER ON

BACK PANEL ON/ OFF SWITCH, FUSE AND POWER SUPPLY TERMINALS IRIG B INPUT (BNC CONNECTOR) IRIG B OUTPUT BNC CONNECTOR

PANEL MOUNTING TO SUIT STANDARD 19" RACK SYSTEM

DIMENSION 484mm (W) 2U (H) 325 (D)

16

Signal Conditioner 2

RS 232 OUTPUT

SIGNAL CONDITIONER FOR RS 232

MODEL NO T-SC-300

TYPE TIME FORMAT

DISPLAY LED INDICATORS FOR SIGNAL INPUT AND OUTPUT

INPUTS RS 232 FROM REDUNDANT COMPARATOR UNIT

INPUT CONNECTORS 9 PIN “D” (M) CONNECTOR

OUTPUT RS 232 / RS 485 EVERY MINUTE/EVERY SECOND

OUTPUT CONNECTORS RS 232 O/P 9 PIN “D” CONNECTORS

SUPPLY VOLTAGE 24V SUPPLY FROM DIODE ORING UINT

ENVIRONMENT a) TEMPERATURE : 0-50°C b) RH : 0-90% NON-CONDENSING

FRONT PANEL LED INDICATORS FOR RS 232 INPUT AND RS 232 OUTPUT

BACK PANEL ON/OFF SWITCH,FUSE AND POWER SUPPLY TERMINALS RS232 INPUT CONNECTOR RS232 0UTPUT CONNECTOR

PANEL MOUNTING TO SUIT STANDARD 19" RACK SYSTEM

DIMENSION 484mm (W) 2U (H) 325 mm (D)

17

Signal Conditioner 3

NTP/SNTP OUTPUT

MODEL NO T-SC-300

TYPE NETWORK TIME SYNCHRONIZING

INDICATION LED INDICATOR FOR SIGNAL INPUT AND OUTPUT

INPUT RS 232 DATA FROM REDUNDANT COMPARATOR UNIT

INPUT CONNECTORS 9 PIN “D” (M) CONNECTOR

OUTPUT TCP/IP OUTPUT EVERY SECOND TO PC SYNCHRONIZING

OUTPUT CONNECTORS RJ 45 CONNECTORS

SUPPLY VOLTAGE 24 DC V SUPPLY FROM DIODE ORING UNIT

ENVIRONMENT A)TEMP.0-50°C B) RH 0-90% NON-CONDENSING

FRONT PANEL SIGNAL INPUT LED SIGNAL OUTPUT LED AND POWER ON LED

BACK PANEL

ON / OFF SWITCH, FUSE, AND POWER SUPPLY TERMINALS a) RS 232 INPUT 9 PIN D CONNECTOR b)TCP-IP OUTPUT RJ 45 CONNECTOR

PANEL MOUNTING TO SUIT STANDARD 19” RACK SYSTEM

DIMENSION 484MM (W) 2U (H) 325 MM (D)

18

SERTEL NTP/SNTP CONFIGURATION

Service Name: Sertel NTP/SNTP CONFIGURATION

FOLLOW THE BELOW STEPS FOR CONFIGURING NTP/SNTP.

The steps remain same for the operating system.

STEPS TO CHANGE IP ADDRESS:

NOTE1:”POWER ON THE UNIT AND PLUG THE ETHERNET CABLE WITH THE NTP

UNIT”.

NOTE2:”YOU SHOULD CHANGE YOUR SYSTEM IP ADDRESS RELATED TO OUR

DEFAULT

IP ADDRESS (192.168.1.254)”.

For example, 192.168.1.XXX

XXX- should be other than 254.

NOTE3: ”THEN ONLY YOU CAN ABLE TO CHANGE IP ADDRESS INSIDE NTP UNIT”.

STEP 1: Open internet explorer

STEP 2: Type web address with sertel’s default IP. (http://192.168.1.254/cgi-

bin/Login.sh)

STEP 3: It will show the Sertel Electronics home page.

19

STEP 4: Enter the Username as Admin and password as NTP ( password alphate are

Caps).

20

The next page will open like this, for using changing IP Configuration or default

setting.

STEP 5: Click Default. It will show default IP address

21

STEP 6: Click Submit. The changed IP address will appear within a few seconds in

another page.

22

STEP 7: Finally reboot the system. After reboot only it will sync with SERTEL NTP

client. We can ping with PC.

STEP 8: You can change the IP address as per your configuration.

For Example, As in below snapshot, we have entered the IP address as

192.168.16.54

Step 9: Click SUBMIT

23

Now the New IP address (192.168.16.54) changed successfully.

24

STEPS TO SYNCHRONISE WITH (windows XP and windows 2003) SYSTEM:

Click "START" at the bottom left corner of the desktop then go to run.

25

Type "regedit" then enter.

Click

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32tim

e\Time-Providers\Ntpclient. (Root key for the time service).

Right click special poll interval and click modify and delete the value

604800 and type 3C.

The above modifications should do for the following (Root key for the time

service).

Click

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W

32time\Time- Providers\Ntpclient. (Root key for the time

service).

26

Click

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\W

32time\Time- Providers\Ntpclient. (Root key for the time

service).

*************************************************

Click

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W3

2time\Time-Providers\Ntpserver. (Root key for the time service).

Right click input provider and click modify and delete the value

000000000 and type 2.

The above modifications should do for the following (Root key for the time

service).

Click

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W2

27

time\Time- Providers\Ntpserver. (Root key for the time service).

Click

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\W3

2time\Time- Providers\Ntpserver. (Root key for the time

service).

CLICK

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W

32time\config (root key for the time service).

Right click first name Announce Flags and delete the value 0000000a and

type 5.

Right click MaxNegPhaseCorrection and click modify and delete the value

54000 and type ffffffff.

Right click MaxPosPhaseCorrection and click modify and delete the value

54000 and type ffffffff.

Right click Update Interval and delete the value 00057e40 and type 3C.

The above modifications should do for the following (Root key for the time

service).

Click

KEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32time\con

fig.

28

Click

KEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\W32time\con

fig.

Right click the time at the right bottom corner.

Select Adjust date/time.

It will show date and time properties.

29

Now you have to select Internet Time. And you have to tick the option that

Automatically synchronize with Internet Time Server.

Then you have to enter your new NTP server IP address inside the server

box.

30

Now you click Apply, then click Update Now tab, then click ok.

Now your system gets synchronized.

Close the date and time window.

Note: if your ntp system is switched off and on, you have to wait for at

least 15minuts for synchronization after power on.

IF INTERNET TIME TAB IS NOT PRESENT OR IF YOU WANT TO ADD

MORE THAN ONE NTP SERVER FOR REDUNDANT SYNCHRONIZATION

Click

HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CU

RRENT VERSION\DATETIME\SERVER (root key for the time

services).

Here you can add NTP server address.

31

You have to select any ab string value name and right click and you have

to modify the address.

If the above name not available you have to right click it will show new.

Now you have click new and select string value and you have to name in

numbers ascending order.

Now you have to double click the ab string value name and type the NTP

server address.

STEPS TO SYNCHRONIZE WITH (Other than windows XP) SYSTEM:

You have to use net time software for synchronizes your pc time.

Double click NetTime-2b7.exe.

Follow all instructions.

It will store its services at START-All Programs- Net Time.

More over it will store its icon at right bottom corner near time.

Now you have to right click net time icon and select properties.

Now you have to select settings.

Here you have to enter your NTP server address and you have to select

SNTP.

Here you have option for update intervals etc. According to your wish you

can enter your values and give "ok".

Now it will show warning. Here you click "NO".

Now your pc time get synchronized.

32

STEPS TO SYNCHRONISE WITH (Linux) SYSTEMS:

--------------------------------------------------------------- In DOS mode type "ntpdate -u server address".

You have to place the NTP server address at the configuration

file at ntp.conf.

In graphics mode double click at time, tick Automatically

synchronized with NTP. server option.

Enter your NTP server address click Update Now. And give ok.

Your system gets synchronized.

********************************************************

TCP/IP OUTPUT

MODEL NO T-SC-300

TYPE NETWORK TIME SYNCHRONIZING

INDICATION LED INDICATOR FOR SIGNAL INPUT AND OUTPUT

INPUT RS 232 DATA FROM REDUNDANT COMPARATOR UNIT

INPUT CONNECTORS 9 PIN “D” (M) CONNECTOR

OUTPUT TCP/IP OUTPUT EVERY SECOND TO PC SYNCHRONIZING

OUTPUT CONNECTORS RJ 45 CONNECTORS

SUPPLY VOLTAGE 24 DC V SUPPLY FROM DIODE ORING UNIT

ENVIRONMENT

A)TEMP.0-50°C

B) RH 0-90% NON-CONDENSING

FRONT PANEL SIGNAL INPUT LED SIGNAL OUTPUT LED AND POWER ON LED

BACK PANEL

ON / OFF SWITCH, FUSE, AND POWER SUPPLY TERMINALS

a) RS 232 INPUT 9 PIN D CONNECTOR

b)TCP-IP OUTPUT RJ 45 CONNECTOR

PANEL MOUNTING TO SUIT STANDARD 19” RACK SYSTEM

DIMENSION 484MM (W) 2U (H) 325 MM (D)

33

TIME SYNCHRONISATION TCP/IP OUTPUT

PC SYNCH-THROUGH NET TCP / IP PORT

Introduction

The EAD connects serial devices to Ethernet network using the IP Protocol. The EAD connects serial devices through a TCP data channel connection to computers.

Network protocol

The EAD uses IP protocol for network communication. For network Connections to the serial port of TCP.

Internet protocol (IP) address

To identify an individual computer IP network must have a unique IP address

Sample IP address 192.168.1.254

34

PORT NUMBER

The EAD serial channel (port) can be associated with a specific TCP Port number . port

number 3001(as a source port no)is reserved for IFD (internet Fax dialer) configuration

Sertel Provided TCP/IP output This will synchronies More Number of PC

Through RJ45 Connection. To Connect 100/10 BasT HUB from Main Hub to All

PC

To Synchronies with PC Install Software the following Step to Install the

Software

Service Name: Sertel time synchronization system

Input: TCP/IP - Sertel Format

OS Platform: WinNT/Win2000/Win2003/Win XP

Synchronization at: User Selectable via syncip.ini

Steps to follow ( to register a time sync service):

1. Copy TCPIP folder into c:\ as (c:\TCPIP) 2. Click "start"

3. Go to "Run" and type "command" and click "OK" button

4. The MS-DOS Screen will display in front of you.

5. Type c: then press enter

6. Type cd\ then press enter

7. Type cd TCPIP then press enter

8. Now verify that you are in c:\TCPIP>

9. Copy syncip.ini file to c:\winnt folder (MS-DOS Command "copy syncip.ini

c:\winnt")

10. Now type "sc create timesync_ip binpath= c:\TCPIP\tcpserv.exe"

11. Type cd\ then press enter

12. Type cd c:\winnt\system32 then press enter

13. Now verify that you are in c:\winnt\system32>

14. Type "mmc services.msc" (in MS-DOS Prompt or "Run" Dialog box)

35

15. Find "timesync_ip" in services list and double click it.

16. Make it is as "automatic" in start up type

17. Go to Log on tab and enable "Allow service to interact with desktop" if you like

to have a display on desktop.

18. Apply the above settings and Start the service and see whether the display

appears or not.

19. Restart your PC and check whether the service starts automatically or not.

Note:

Registering a service under Windows NT based PC's, will normally require

a administrator level access. So, before registering a service you are

requested to have a administrator logon access (i.e. Administrator

Password)

Syncip.ini file contents:

[Network]

Server IP Address=0 // Leave this as 0 for automatic server detection or //otherwise specify server IP address (default-0) [Sync] Sync Interval=0 // Synchronization Interval: 0-Every Second 1-Every Minute //2-Every 1/2Hour,3-Evey Hour

36

Signal Conditioner 4

PULSE OUTPUT

MODEL NO T-SC-300

TYPE MICRO CONTROLLER BASED

INDICATION LED INDICATOR FOR PULSE INPUT AND OUTPUT

INPUT S,M GPULSE FROM REDUNDANT COMPARATOR UNIT

INPUT CONNECTORS PULSE INPUT THROUGH TERMINAL CONNECTOR

OUTPUT a) PFC OUTPUT USER SELECTABLE BY SECOND MINUTE USING

SELECTOR SWITCH. OR FIXED PULSE OUTPUT CONTACT DURATION

50MSEC (TO VARY FROM 20 TO 999 MSEC) ALL PULSE ARE ISOLATED

CONTACT / PULSE OUTPUT. B) PULSE OUTPUT FOR SECOND ,MINUTE

PULSE OUTPUT DURATION 50MSEC.

OUTPUT CONNECTORS A) MOUNTING CONNECTOR / BNC FOR ALL PFC CONTACT OUTPUT

PULSE OUTPUT ,PULSE OUTPUT CONTACT DURATION 50 MSEC

SUPPLY VOLTAGE 24 DC V SUPPLY FROM DIODE ORING UNIT

ENVIRONMENT A)TEMP.0-50°C

B) RH 0-90% NON-CONDENSING

FRONT PANEL LED INDICATOR FOR PULSE INPUT AND OUTPUT

BACK PANEL

ON/OFF SWITCH, FUSE,POWER SUPPLYTERMINALS PULSE INPUT

TERMINAL CONNECTOR PFC OUTPUT TERMINALS PULSE OUTPUT PFC

MOUNTING CONNECTOR . PFC CONTACT OUTPUT SELECTOR SWITCH

PANEL MOUNTING TO SUIT STANDARD 19” RACK SYSTEM

DIMENSION 484MM (W) 2U (H) 325 MM (D)

37

Signal Distribution Amplifier

MODEL NO. T-SDA-300

DISPLAY LED INDICATION

INPUT DIFFERENTIAL PULSE FROM COMPARATOR /

MASTER CLOCK UNIT.

OUTPUT AMPLIFIED DIFF PULSE 4 NOS

(PROVIDED FOR 4 DIRECTION)

POWER SU-PPLY 24V DC FROM DIODE ORING UNIT

SIGNAL

AMPLIFICATION

EVERY SECOND

ENVIRONMENTS A)0-50°C

B) RH : 0-90% NON-CONDENSING

MOUNTING 19: RACK PANEL MOUNTING

DIMENSION 2U (H) X 484 (W) X 325 (D) MM

38

Digital Slave Clock (T-SL-300-100-6D)

MODEL NO T-SL-300-100-6D

DISPLAY HOUR, MINUTE & SECONDS IN 24 HOURS FORMAT

DISPLAY SIZE 100 mm, 7 SEGMENT RED LED-6 DIGITS

INPUT DIFFERENTIAL PULSE FROM GPS/MASTER CLOCK UNIT

POWER SUPPLY 230V AC SUPPLY

CONNECTION SLAVE CLOCK ARE CONNECTED TO MASTER CLOCK BY

3 CORE COPPER CONDUCTORE . (MULTI DROP SYSTEM)

SLAVE UPDATION EVERY SECOND

ENVIRONMENTS a) TEMPERATURE :0 -60°C

b) RH : 0-90% NON CONDENSING

MOUNTING WALL MOUNTING

DIMENSIONS WIDTH: 700mm,Ht:200mm, DEPTH:110mm

39

Power Supply Unit

MODEL NO T-PSU-24V

INPUT 230±10% AC FROM MAINS OR UPS 50 HZ

AC INPUT CONNECTORS THROUGH AC FILTER

OUTPUT 24V DC 4 AMPS MAX . TO SYSTEM SUPPLY

CONNECTORS 3 WAY CONNECTORS FOR 24V DC

ENVIRONMENT a) TEMP : 0-80°C

B) RH : 0-90% NON -CONDENSING

FRONT PANEL AC ON DC ON LED INDICATORS

BACK PANEL a)AC 230V INPUT TERMINALS

b)24V OUTPUT TERMINAL TO INSTRUMENT SUPPLY

c) AC ON/OFF, DC ON/OFF, CHARGERON/OFF SWITCH

d)AC FUSE (4A ms)

e)DC FUSE (2A ms)

MOUNTING PANEL MOUNTING 19" RACK

DIMENSION 484(W), 325 (D), 3U (H).

40

Diode O-ring Unit

MODEL T-DO-300

INPUT 230V AC X TWO TERMINAL

TYPE REDUNDANT POWER COMPARATOR

INPUT CONNECTOR INPUT (1) TERMINAL (+) (-)

INPUT (2) TERMINAL (+) (-)

CURRENT RATING 4 Amp .MAX

OUTPUT ISOLATED 24V DC SUPPLY TO MODULES

FRONT PANEL LED INDICATOR

INPUT 1 ON & 2 ON

OUTPUT ON

BACK PANEL 24V DC INPUT 1 TERMINAL

INPUT 2 TERMINAL

INPUT SWITCH ( 1 & 2 )

INPUT FUSE ( 1& 2 )

OUTPUT TERMINAL

OUTPOT SWITCH

OUTPUT FUSE

MOUNTING SUITABLE 19" RACK MOUNTING

DIMENSION 3U (H) X 484 (W) X 325 (D) MM.

41

Slave Clock Signal Booster Unit

MODEL NO T-SBU-300

DISPLAY NO DISPLAY

INPUT DIFFERENTIAL OUTPUT

POWER SUPPLY 230V AC 50HZ

CONNECTION SIGNAL BOOSTER IS CONNECTED TO SLAVE CLOCKS

BY 3 CORE COPPER CONDUCTOR .(MULTI DROP SYSTEM)

SIGNAL AMPLIFICATION EVERY SECOND

ENVIRONMENT a) TEMPERATURE : 0-50°C

b) RH : 0-90% NON CONDENSING

MOUNTING WALL MOUNTING / TABLE TOP MOUNTING

DIMENSIONS WIDTH : 140mm

HEIGHT : 70mm

DEPTH : 170mm

Line Driver / Line Receiver

INTRODUCTION

SERTEL Line Driver is a stand alone, reliable and easy to use device and occupies

very little space. Computer / Instrument terminals are generally connected to

mainframe installation through RS 232C Interface. Serial port (RS 232C) can support only

up to 50 feet. Beyond this limit, Line Drivers are basically used to boost the data signals.

42

FEATURES

Specially designed power supply 100% optical isolation has been provided, both at input and output.

Protection against cable short circuit.

Surge and lighting protection to safe guard the instrument terminals. MODEL NO. T-LD-300, T-LR-300

TYPE ASYNCHRONOUS

COMPATIBILITY RS 232 C

MAX. BAUD RATE 9600 BPS CONSTANT (NON SELECTABLE)

ERROR RATE BOTH INPUT & OUTPUT ARE OPTICALLY ISOLATED

FRONT PANEL

SIGNAL INDICATOR & ON/OFF SWITCH 9 PIN D CONNECTOR RS 232 INPUT OUTPUT CONNECTOR

BACK PANEL FUSE HOLDER (500MA) 230 V AC INPUT TERMINAL

INPUT RS 232 C (BHEL DDC FORMAT)

OUTPUT RS 232C

CABLE CONNECTION SEE BLOCK DIAGRAM (ANNEXURE)

OUTPUT CONNECTION (FOR SYSTEM)

9 PIN ‘D’ CONNECTOR

INPUT VOLTAGE 230V AC BOTH LINE DRIVER & LINE RECEIVER

ENVIRONMENT TEMPERATURE : 0-50°C RH :0-90% NON-CONDENSING

43

Warranty

What does this warranty cover?

This Warranty applies to all Sertel’s products purchased from an authorized OEM

to the original purchaser for normal use and not for resale. SERTEL warrants that a

covered product is free from defects in materials and workmanship, with the exceptions

stated below.

How long does limited warranty coverage last?

This warranty lasts for 1 year from originally purchased date. A valid proof of

purchase may be required to prove eligibility. If you do not have a valid proof of purchase,

the warranty period will be measured from the date of sale from Sertel Electronics to the

OEM.

What does this warranty not cover?

The warranty does not cover damage resulting from commercial use, misuse,

accident, modification or alteration to hardware or software, tampering, unsuitable

physical or operating environment beyond product specifications, improper maintenance,

or failure caused by a product for which SERTEL Electronics is not responsible. There is no

warranty of uninterrupted or error-free operation. There is no warranty for product with

removed or altered identification labels.

Sertel does not provide any other warranties of any kind, including, but not

limited to, the implied warranties or conditions of merchantability and fitness for a

particular purpose. Some jurisdictions do not allow the limitation of implied warranties,

so this limitation may not apply to you.

SERTEL is not responsible for replacing the product which is not covered by this

warranty.

44

What must you do?

If you are having trouble with a product, before seeking warranty service, first

follow the troubleshooting procedures that SERTEL provides.

To obtain warranty service, please email sales@serteltelser.com. All associated

transportation charges, duties and insurance in shipping the drive to our logistics center at

your cost. You should remove all personal information from the product prior to its return.

How is our liability limited?

Sertel and its affiliates, suppliers, distributors, and resellers are not liable for any of the

following:

1) third-party claims against you for damages

2) loss of, or damage to, your data; or

3) special, incidental, or indirect damages or for any economic consequential damages

(including lost profits or savings), even if informed of the possibility. Some jurisdictions do not

allow limitation of liability, incidental damages, or consequential damages, so the above

limitations may not apply to you.

AFTER SALES SERVICE Please contact sales@serteltelser.com or info@sertelteser.com for further details.

45