Products Source For Railways

SSBPAC is a solid-state system used for controlling the coordinated movement of the train in the block section, working on Absolute Block Working Principles. The system has been developed as per RDSO / SPN / 175 / 2005 both for a single line and double line.

• Completely safe – CENELEC SIL-4 certified
• High reliability – Inbuilt 2 out 3 Architecture
• Improved availability
  • Woks with variety of media – OFC (dark fibre) / Copper cable / E1 Channel / Voice channel – equipped with redundancy of media selection
  • Protection against surges
  • Redundant power supply

• Flexible – Fit for DC/AC/Diesel traction territories
• Easy to deploy – Embedded, prewired modules
• Least operations – Saves operations time
• Fast operations – Takes few seconds
• Easy to maintain & troubleshoot – Completely electronic, deskilling of trouble shooting with extensive diagnostics
• Reduced cost of maintenance – By Remote Condition Monitoring

Universal Fail-Safe Block Interface (UFSBI) is a fail-safe multiplexer capable of transferring 16+16 i.e. a total of 32 On-Off relay states

between location physically separated by a distance but connected through a voice/data channel over OFC/Microwave or Quad cable. The

UFSBI can be effectively used to replace the signalling cables required for repeating relays between mid-sec block huts and end stations.

HIGHLIGHTS OF UNIVERSAL BLOCK INTERFACE EQUIPMENT

• Designed for fail safe operation.

• Triple redundant hardware at all levels with 2/3 decision logic ensures high degree of safety as well as availability.

• System meets CENELEC & ORE 155 guidelines for safety and reliability.

• System meets RDSO specification SPN-144 and SPN-147/2005 for all types of Block Instruments in operation in Indian Railways.

• Simple, modular and rugged design.

• High performance 16 bit Intel 80C196KC Microcontroller used for better software management.

• CMOS/FET active components to ensure low power consumption and better reliability.

• Hi-rel components, relays and connectors used to ensure high MTBF.

• All input-output connections are optically and/or galvanically isolated to eliminate ground noise and earth faults.

• Rugged communication protocol for transmission of error-free data.

• Dual power supply in hot-standby mode increases system availability.

• 16-digit dot-matrix alpha-numeric display for user friendly man -machine interface.

• Environment specification meets IS-9000.

 The Single Section Digital Axle Counter SSDAC Singal section axle counter is generally used to monitor a single track section i.e. there is only one entry point and one exit point for a particular track section.

Examples of applications of axle counters are:

• Train detection in station section
• Train detection in automatic signaling section for signal control
• Train detection in the block section for block proving
• Train detection in Railway yards

The SSDAC-710P uses its track sensors on each end of a track section to continuously monitor and count the train axles passing in and out of that section. If the number of axles in the section is zero and there are no defects or disturbances, the system declares the section to be unoccupied. This is typically signaled by picking up a relay. In all other cases, the system declares that the section is occupied and the relay is dropped. This system works with two detection points only.

Fail-safe 2x2oo2 microcontroller-based axle counting system for the High Availability section proving in Railways. It can be configured to various versions using a fool-proof method thus prevents the wrong configuration at the site, ensures the highest degree of safety. An operating mode like preparatory, clear and occupied, configuration status, wheel counts and error messages are constantly displayed on the system LCD status panel and interactive Reset box.

Dual Redundant Magnetic sensors detect the axle counts and direction of train movements that are transmitted to the other end of the system to verify and clear the block. Wheel sensed at one DP will clear at any DP. The section status can be fed directly to further controlling systems through vital relay contacts. Each section has two or three detection points based on configurations. The system unit is housed near the track with its DP placed at a variable distance of 15 Mts.

System

• Microprocessor-based fail-safe embedded system
• Detection of axles and direction of train movement
• Fixed pair communication, CRC check & unique addressing of units ensures fail-safety
• User-friendly GUI aids to download events via RS232 port
• Units are housed in location boxes near the tracks

Axle Detectors

• Web mounted on track works with 90-R, 52Kg, 60Kg rails
• Phase detection principle employed
• Signals fed at 21Khz and 25Khz to Tx coils at 60V RMS
• Axles above 550mm are detected

Dual Reset Box

• Amended as per RDSO Ver 2.0 Specification
• Interactive RESET Box with Separate status LCD display for individual axle counting system on single quad cable multidrop mode and common Resetting
• Independent system status and combined parallel Section
• Stores events locally to download at station only

It is used for detecting railway track occupancy primarily in a station. It is used for track circuiting a whole station.MSDAC is a modular design and can be used with 40 detection points per chassis. each detection point has a track sensor that identifies a track section boundary.

The data logger is a microprocessor-based system which monitors and records all activities and event in the signalling system of a railway station/yard in the chronological order. the installation consists of data logger equipment, fault analysis software and a central monitoring unit.

Fail-Safe Electronic Time Delay Device is an electronic timer that replaces the timer which replaces the thermal element relay used in signaling circuits. This fully solid State device is relay less and the time base is generated through a quartz crystal to give a high repeat accuracy. It is meant to control railway signaling circuits where a fixed time delay of 60 or 120 seconds is required. It works on a 24V DC power supply.

This Block Instrument for use in RE & Non-RE sections. a pair of block instruments are connected electrically through overhead or cable to control the movement of trains on a single-line block section in either direction.

Advantages over Token Block Instrument:

1. Less opera_ng _me.

2. No Token exchange.

3. Less physical strain.

4. Problems like token missing, token balancing, census of token,

recoupment of lost token or damaged token etc. are not

encountered.

5. Avoidable deten_on is minimized.

6. Increase sec_on capacity

7. Maintaining normal polarity/Reverse Polarity of Block instrument is

not required.  

This instrument is used for double line block working. One station will have two block instruments, one for the station in advance and another for the station in the rear. The instrument is simple, compact, and robust in design. It requires simple regular maintenance and scheduled overhauling to ensure its trouble-free working.

It shows three positions of block section for each line namely line closed line clear and Trains ON LINE. In the NON-RE area, it requires 3 wires.

This Equipment is used for calling by DTMF Signaling and

Communication via 2 Wire Line through OFC or Quad Cable to the

other end station where the tone is decoded and an audio-visual

indication is activated. Similarly the tone from the other end station

also is received by the first end station. The signaling and Speech

Circuit arrangement works on 24V DC + 20% - 30%.

It can be used for point-to-point communication between Cabin ASMs of a yard, Cabin to Level Crossing Gates and between Two-Level Crossing Gates, etc. A Battery compartment is provided on the front of the Telephone, with a hinged cover and screw.

Electronic magneto telephone is an extended version of magneto telephone having an additional feature of one push-button calling in place of hand generator. It is possible to interface this telephone with a microwave and optical fiber system. It can be used for point to point communication between cabin asms of a yard, cabin to level crossing gates.

This Telephone System has added advantages of voice recording, playback, and logging facility of some important events. The basic features are:

• Communication between Station Master and Level

              Crossing Gates.

• 6 LC Gates can be connected to one Master in omnibus

              mode- - saves cable cost

• Selective Calling from Master Telephone to LC Gate

               Telephones

• Only one centrallised Power Supply Unit with battery

               back-up & saves battery cost

• All conversations between ASM & Gatemen are recorded

              & stored in its memory

• 200 hours voice is stored in solid-state memory in FIFO

              method

• Confidentiality in speech is maintained

PVC Insulated, PVC Sheathed armoured Signalling cables are used for carrying Signalling circuits. Consuctors are of copper and of sizes 6C, 12C,24C,30C with conductor Size of 1.5 Sqmm area. They ensure the transmission of signals and a continuous power supply across all trackside signalling equipment applications 2C core x 2.5 sq mm cables are used for track circuiting and all other sizes are used for different types of circuits for operation of Signals, Point Machines etc.

This cable consist of Aluminium conductor are used for providing Power to the signaling gears which are installed alongside the track

The Quad cables can be 6 Quad or 4 Quad 0.9mm dia conductor. These cables are used in Outdoor applications for Communication purposes. The conductors are of Copper and the Jelly filled insulation provides very high power loss protection.

PVC Insulated Railway Signalling Indoor Single Core Cable (Sizes 1Cx 0.6mm, 1Cx 1.0mm, 1C x 0.5 ies 16/0.2 mm, 1C x.75mm ) & Mulcore Sizes (60Cx0.6mm, 40Cx0.6mm,24Cx1mm. 60Cx 1mm, 40Cx1mm).These cables are used for indoor wiring of Relays, equipment wiring etc.

A fibre-optic cable, also known as an optical-fibre cable, is a 24 Fibre Assembly used for Data Transmission Purpose.

Mul Lamp Colour Light Signal units can be of 2 Aspect, 3 Aspect, and 4 Aspect. The Base material can be conventional Cast Iron or the more recently developed FRP material.

IRS:S-26/64

For CAST IRON Type

Drg No:.SA 23001 A/M (Adv.)

Drg No:.SA 23002 A/M (Adv.)

Drg No:.SA 23003 A/M (Adv.)

Route Indicators are used with Main Signals for informing the Driver with an advance warning of the route they are to take at a junction ahead. The indication is providing by illuminating the lights of the arm

The Apparatus cases (Location Box) are used for Termination of cables, Placing of Equipment. The drawings which are followed can be various as per the Zonal Rly Drg, CORE, RITES etc.

The Relays (Metal To carbon or Metal to Metal) are fixed on MS Structure which is called Relay Racks. These Racks are installed in Relay Room and relays are wired through Copper Cables ( Size 1Cx16/0.2mm, 1Cx 06mm, 1Cx1.0mm) in the Tag Blocks which are fitted in Relay Racks. . The power supply for the relays is also terminated on the relay racks which also has Fuses mounted on them.

The multi signaling cables which are laid outside, connected to the outdoor signal functions such as signals/points/circuits/level crossing gates are terminated on the 8-way connectors fixed on a separate rack called the Cable Termination racks. The tag blocks are also connected to the 8 Way connectors fitted on the cable termination rack.

CSTE/NWR /SOR/02

NR/S&T/CON/4.1/97A

RVNL/S&T/SG-075/2012

Telecom equipment such as SDH Equipment, Multiplexers, Routers etc are mounted on these racks. Nineteen-inch racks in two-post or four-post form hold most equipment in modern data centers, ISP facilities, and professionally designed corporate server rooms. They allow for dense hardware configurations without occupying excessive floors pace or requiring shelving. These racks are also covered with a Tuffened Glass Pane with a secured locking system.

Terminal blocks are used to secure and/or terminate wires and, in their simplest form, consist of several individual terminals arranged in a long strip. Terminals are useful for connecting wiring to the ground or, in the case of electrical power, for connecting electrical switches and outlets to the mains.

Tag Blocks are used for Terminating cables. These are placed on the Relay Racks and are made of Polycarbonate materials. The most commonly size is 200 way

Modular rail-mount terminal blocks are ideal for both custom- and ready-made terminal strips for panel mounting applications. These terminal blocks can be mounted via screw flanges, snap-in feet for mounting holes, or for assembly onto aluminum carrier rails.

It is used for securing the Level Crossings which are interlocked with signals in such a manner that a signal leading to the crossing cannot be cleared for a train unless the crossing is closed and locked against road traffic

An electrical point machine is an electrically driven motor used for the operation of points in railway yards. The gear rack drives switch rails to unlock, change the position from N to R or R to N, and lock the switch at the end of the stroke.

Fuses of various types and various ratings are being used. Typical Rang are 2A, 4A, 6A, 10A

SMPS Based Integrated Power Supply. The IPS systems provide complete power solutions from one system to all signaling circuits. This SMPS based IPS system is extensively used in critical railway signaling applications. The IPS systems are used for RE & Non-RE Areas

Audio Frequency Track Circuits are used for accurate free/occupied status indications of the track sections. It can be installed in all types of Railway installation (Mainline, Metro, Rapid Transit).

The Track Feed Battery Charger is used to charge 1 or 2 or 3 or 4 lead-acid cells of 40 / 80 AH used in DC Track Circuits. These are installed in Apparatus Cases. More prevalent is the 10 Amp charger which has a Double-Pole ON/OFF Rotary Switch, 110V AC Input Terminals, and another Terminal for Earth are provided. DC Output Terminals are provided in the Front Panel. A Potential free contact is available to extend the audiovisual alarm at a remote place. A snap-acting rotary (1 Pole / 4 Way) cell selector switch is provided for selecting 1, 2, 3, or 4 cells in four positions.

These chargers are being used for charging various types of Battery Banks which are used for Power backup for the S&T equipment. These chargers consist of so start charging facilities, which maximize the battery life. It is used to protect the load from over-voltage if the charger works on a boost mode. It works on Input: 415 VAC ± 10%, 50Hz ± 2Hz.

Track Lead Junction Box is made of Fibre Glass to RDSO drawing no. SA 20101/M & RST 11509 and RDSO specification no. RDSO/SPN/151/1997 with PBT Terminals. These boxes are used for Track circuiting cable termination and are fixed in angles that are in & concreted along the track side.

Low Maintenance Batteries are most suited for remote applications where accessibility is poor and it requires water to top up once a year. The battery has excellent reserve capacity and robust in construction. It is manufactured in both Hard Rubber and in PPCP hermetically heat-sealed containers with rang from 40 Ah to 500 Ah.

VRLA batteries for Railway applications come in 2V single cells assembled in modular racks. These racks are mounted horizontally and can be stacked one above the other. These batteries come in factory-filled charged and ready to use condition. These batteries provide maintenance-free operation envisaging Indian Railway's extreme hazardous operating conditions. In normal use, these batteries will not release Hydrogen & Oxygen gases, will not release acid mist, and will not spill acid. Thus these batteries are inherently safer than conventional lead-acid batteries.

In Metal to Metal Relays, all front and back contact are of Metal Proved relays are metal-to-metal relays in which all the contacts are made of silver, and as such, there is a possibility of their fusing together due to high sparking currents across them during make/break. To prevent this, the normalization of relays is each operation is proved in the circuit.

These Relays are typically called Q Series Type and have Metal to carbon Contact. Coding is needed on the relay to avoid interchangeability with relay of different contact configuraon. These relays normally Operate on 12, 24 or 50V DC and can be provided with a max. of 16 independent contacts. 

The Earth Leakage Detector (ELD) is ELD, this equipment connuously monitors the insulaon of a cable with respect to the Earth. It is widely used in railways to monitor signaling cables on AC and DC circuits. The leakage value can be pre-set by the user in the range of 2K Ohm to 1 Meg ohm. Available in mulple of 4 Channels i.e. 4/8/12 /16Channels.

Specially used for earthing of sophiscated signaling Installaons. Each Set consists of Coppur Rod, Special Chemical, Cu Strips, GI Strips and exothermic welds. 8-9 Single Earths are made into a “Ring Earth” which is mandatorily required for Electronic Installaons.

Electric Liing Barriers are used to control the road traffic, across the Railway lines. When compared with the exisng manually operated gates, these gates are modern and easy to operate. These gates consume very low power. A small hand generator can produce the power required for both barriers by simply rotang a crank at 50 to 60 RPM. These barriers can also be lied individually with a direct crank handle with a minimum effort . The ELB comprises of an electric motor, operang mechanism, circuit controller, manually operated hand generator, road signals, audible device, boom etc.

Lifting Barrier gate is an important safety device, installed on both sides of the Railway track in parallel at level crossings. It warns the road traffic by its bell gong and checks the movement of the traffic at the me of train passing through track. It prevents accidents between train and road vehicles.

The latest Pathfinder Pipe Cable locator based on SAF technology is designed to provide the operators a cable route tracer that can be ulized for cable & pipe locang in the most congested ulity environment for long distance tracing of pipe or cables.

Fuse Auto Changeover Systems connuously monitor various fuses provided in Railway Signalling Installaons. The System not only monitors the fuses, but also changeover to a Spare Fuse (provided within the system) automacally on failure of the Main Fuse.

It is a special type of cable Number of quads – Four quads or six quads. (Default 6 quads) Size of the conductor (1.4 mm)

Shunt Signal is used as Dependent type when it is used below Main Signal or Independent Type when it is used for Shun

The Indian Railways is working on the utilization on of RFID for the betterment of transportation and signal handling. When waves from the reader fall on a passive RFID tag, the coiled antenna within the tag starts to induce the magnetic field. The tag draws power from it, and forwards it to the circuits in the tag.

This instrument is very effective in monitoring of the network connections and primarily monitors pulse mask analysis, overhead analysis, point analysis and anomaly/defect analysis as well as bit error rate (BER) testing. These are basically the scaling parameters which are used to know the actual performance of the network.

4 Wire/2 wire Train traffic control equipment with dual tone multi frequency (DTMF) signalling (IRS:TC- 60/2007) . Based on DTMF voice signalling Controller can call selectively 99 nos. of Way Station Equipment through Control Office Equipment.

The 48V SMPS based battery charger power plant, designed as per customer's load requirement and capacity of battery, is suitable for High Frequency Switched-Mode Technique for the use by Indian Railways for Telecom Equipments i.e. Exchanges,Muliplexing Equipments, Microwave Radio Equipments, GSM-REquipments.