PRS Link on OFDM Wireless Network
AMARKANTAK was one of the Microwave Stations under Bilaspur Division earlier connected to BILASPUR Microwave. There old Microwave Towers of height around 100m at both Amarkantak and Bilaspur. These towers are still in good condition. In view this available infrastructure with Railways it was planned to commission data link required for referred Non-Rail Head PRS at Amarkantak Post Office using High Frequency Wireless Technology (Orthogonal Frequency Division Multiplexing). Accordingly planning was done and using RADWIN Radio Equipments with suitable antennas around 80 KM Single Hop Data Link between Bilaspur and Amarkantak was commissioned in a record time of 3 days. Antennas were fixed at height of around 80m at both Amarkantak and Bilaspur. Local connectivity between Amarkantak Microwave Tower and Post Office was also done on similar wireless link. From Bilaspur PRS to Bilaspur Microwave Tower available local lead on CU Wire was used. The link since its commissioning on date 09.05.14 is working satisfactorily and the performance is far better than those of hired channels. A schematic diagram of the system commissioned is shown below:
There are many benefits of having our own link using free band wireless media vis-à-vis hired channel. Some of them are listed below:
1.No annual recurring Port/Bandwidth Charges will be required after one time installation cost.
2.The complete system with monitoring system will be under Railway’s control which will help in early identification and rectification of any faults/failures.
3.Apart from 2 MBPS dedicated Ethernet, this system will be upgradable for E1 connectivity also. This may help in extending other circuits like Railnet etc. to Amarkantak in future as per requirement.
SAFETY ACTION PLAN FOR 2015-2016
Tentative |
SN | Item | Unit | Target |
2015-16 |
1 | Accident on S&T account | | |
| (a) No. of accidents due to Equipment failure | Nos. | 0 |
| (b) No. of accidents due to Human failure | Nos. | 0 |
2 | Failure of equipment on unsafe side | Nos. | 0 |
3 | Safety Inspection by S&T officials | | |
| (a) Safety inspection atSectional Inspector level (Monthly) | Nos. | 1104 |
| (b) Safety inspection atIncharge Inspector level (Quarterly). | Nos. | 368 |
| (c)Safety inspection atASTE, DSTE, Sr.DSTE’s level (Yearly) | Stn. | 92 |
4 | Joint Inspection of S&T officials | | |
| (a) Foot plate inspection by CSI/CL.I & CDTI (Quarterly) | Nos. | 144 |
| (b) Points & Crossings by CSI/PWI | Nos. | 360 |
5 | Training of safety category staff (Refresher) | | |
| (a) Signal Supervisors ( Once in 5 years ) | Nos. | 10 |
| (b) Telecom. Supervisors ( Once in 5 years ) | Nos. | 5 |
| (c) Signal Maintainers ( Once in 4 years ) | Nos. | 20 |
| (d) Telecom. Maintainers ( Once in 4 years ) | Nos. | 28 |
| (e) Safety Seminar (2 Nos.per month.Divn.) | Nos. | 24 |
6 | Periodical Medical examination of safety category staff | Nos. | 10 |
7 | Overhauling of Signalling equipment | | |
| a) Lever frame ( Once in 3 years ) | Nos. | 2 |
| b) Block instrument (DLBI-once in 7yrs & SLBI/TLBI-once in 10 years) | Nos. | 32 |
| c) Shelf type relay Track(Once in 12 years) | Nos. | 0 |
| d) Shelf type relay Line(Once in 15 years) | Nos. | 0 |
| e) Cable meggering | Stn. | 92 |
8 | System Integrity Test | Stn. | 22 |
9 | Sign off Register - Compliance of defficiencies reported | Item | All |
10 | Maintenance of VHF communication (for Gd/Driver): | | |
| a) Replacement/repair of defectivesets. | Nos. | 400 |
| b) Replacement/repair of defective battery chargers. | Nos. | 10 |
| c) Replacement of battery ( Once in a year) | Nos. | 200 |
11 | Joint checking of emergency sockets (Quarterly by SE(Tele) & CTFO) | Nos. | 3208 |
12 | Inspection of ART & ARME equipments | | |
| (a) Inspection at Inspector level (Monthly). | Nos. | 48 |
| (b) Inspection at Officer level (Quarterly) | Nos. | 16 |
13 | Inspection & testing of assets for Disaster Management | | |
| (a) Inspection at Inspector level (Monthly). | Nos. | 12 |
| (b) Inspection at Officer level (Quarterly) | Nos. | 4 |
14 | Provision of shortfall safety materials in ART/ARME. | | |
a | Provision of one more satellite phone at all ARTs | Nos. | 0 |
b | Provision of System showing the coverage availability of measure mobile service provider in ART | Nos. | 0 |
