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The LED Main Signal Light unit (ASPECT Unit) is as per the Technical guidelines of RDSO document titled “Technical Specification for LED Signal Lights Lighting Units for Railway Signaling” with specification numbers as below.

  1. RDSO/ SPN/ 153/ 2004 (Rev 3.0) (Draft)
  2. RDSO/ SPN/ 153/ 2011 (Rev 4.1)

The ASPECT unit is compatible with AC LED ECR’s and can be mounted in existing CLS housings without any alteration. 
KONARAK INDUSTRIA PVT LTD. has designed and developed this product to function as per the guidelines specified above. 
The product consists of sub-equipments as detailed below.

 

ASPECT UNIT

(applicable for both RDSO/ SPN/ 153/ 2004 (Rev 3.0) (Draft) & for RDSO/ SPN/ 153/ 2011 (Rev 4.1) standards)

 

 
RED ASPECT
 
YELLOW ASPECT
 
GREEN ASPECT

 

This LED SIGNAL LIGHT replaces existing GLS based Signal lighting units.
 This unit consists of arrays of LEDs and is connected in Series-Parallel combination. A light sensor is provided to monitor the LED light intensity continuously and give feed back to Current Regulator Unit.

 

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CURRENT REGULATOR (CR)

(applicable for both RDSO/ SPN/ 153/ 2004 (Rev 3.0) (Draft) & for RDSO/ SPN/ 153/ 2011 (Rev 4.1) standards)

This unit regulates the current flowing through arrays of LED Aspect. This module is fitted inside the Existing CLS Unit in place of four holes provided for mounting transformer.

 

Before mounting, we can select BLANK or NON-BLANK option as per the requirement by using SHORTING TERMINAL provided.  This unit can work with input voltage ranging from 110 VAC +/- 25% which is fed through HMU. The output of this unit is connected by a cable with metallic connector, which in-turn is connected to ASPECT.

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FUSE PROTECTION

(applicable for RDSO/ SPN/ 153/ 2011 (Rev 4.1) only)
In place of HMU, A 630mA fuse with suitable Fuse terminal Block is mounted on a DIN rail Channel to ensure protection of Current Regulator and Aspect Unit in situation of abnormal input conditions

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HEALTH MONITORING UNIT (HMU)

(applicable for RDSO/ SPN/ 153/ 2004 (Rev 3.0) (Draft) only)

http://www.konarak.co.in/images/health_monitoring_unit_hmu.jpgThis unit monitors the health of the CURRENT REGULATOR, ASPECT and Connecting Cables on a continuous basis. The status of the ASPECT is displayed with a set of glowing LEDs, mounted  on the front panel. The unit Controls the AUDIO VISUAL ALARAM UNIT (AVA).
When Aspect unit reaches DIM or FAIL condition, the HMU triggers the AVA.
As an Option, by selecting the position of 10 PIN connector in HMU Unit, we can bypass the HMU Unit.  An electrical fuse is provided to protect CR and Aspect in case of failure of all protection mechanism.

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AUDIO VISUAL ALARM

(applicable for RDSO/ SPN/ 153/ 2004 (Rev 3.0) (Draft) only)

The AVA unit is suggested to be installed near the Cabin End, as it is designed to alert the ESM / ASM in case of any of the functional deviation of Aspect
 On receipt of the triggering signal from the HMU the AVA displays the fault by flashing a RED LED along with an AUDIO ALARM (from a buzzer)
This sound can be silenced by pressing the MUTE switch provided on the AVA unit, but the flashing Red LED continues to flash, until the specific fault is rectified.

 

 

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