KR TECHNOLOGY - Communication system

KR TECHNOLOGY Communication system

Communication system

Communication line facility

Cable trough
- Being installed at the wayside of high speed railway, this facility accommodates power cables, control cables and communication cables
- There are 3 types: CT-G type for earthworks, CT-B type for bridge, and CT-T type for tunnel
- Install at the both sides of line, total 624km
Communication cable
- Optical cable : 624 km × 2sets
- Copper cable : 312 km × 1sets

for earthworks
for bridge
for tunnel
Cables

Station communication system

역무용 통신설비 구분 표
Facility type	Features
Passenger information system	Inform KTX departure and arrival Inform train route Inform gate for train
Dispatch telephone	Direct phone line for job commanding between Operation control center and local command room, or between the sites for each field General call, group call, individual call
Switchboard	Provide voice, data and fax communication DID, DOD Automatic contact number guide
CCTV system	Monitor passenger safety at platform Monitor unmanned substation
Travel information system	Provide train information required for travel and tour Monitor unmanned substation Maximize efficiency to attract passengers
Electronic watch	Provide identical standard time to high speed railway OCC, operation offices, waiting rooms, and other amenities around the station.

Transmission network facility

Overview
- Digital optical communication network system to mutually transmit a variety of information required for high-speed railway train operation and maintenance such as voice, data, and image to station, depot and various machinery rooms.
Features
- Common ducts are installed at the both waysides along the high speed railway routes, and power, control, and communication cables are installed in those ducts (308Km)
- Optical cables for transmission network facility are installed in the common ducts (370Km)

전송망설비 개요도 서울 부산간 기간망:SMT-16(Ring ADM) 각영(서울역외 5개), 서울 부산가 구간망:SMT-1(4F) 신호기계실, 서울 부사간 연결접속망:SMT-1(2F) 무선설비, 전력설비, 기지

Train radio system

열차무선설비 구분에 따른 기능을 설명하는 표
Type	Function	Key equipment
Central control center	1. Relay station control 2. Walkie-talkie position registration and call connection 3. System operation status monitoring	1. Local controller 2. Radio switchboard 3. Radio power comparer 4. Remote monitoring controller 5. Operation console Location : Nam Seoul Station
Relay base station	1. Secure the whole section of high speed railway as radio communication available area, and provide the communication 2. Transmit signal received from walkie-talkies to central control system 3. Transmit signal received from central control system to walkie-talkies	1. Walkie-talkie : 6 2. Antenna and steel tower: 1 set, Installation places : 36 places
Tunnel facility	Radio communication in tunnel, a poor reception area 1. Install radical cables at 5.5m height on tunnel wall 2. Instill bidirectional amplifier with 500m interval to secure constant radio power	1. Radial cable 2. Bidirectional amplifier
Radio transceiver	Radio transceiver for KTX 1. Install in the driving room of high speed train and provide voice communication between OCC and stations 2. Transmit failure information sent from the computer installed at the rolling stock to required place such as command rooms Radio transceiver for station 3. Portable radio transceiver installed at station and maintenance center to be used in radio communication between train and maintenance staff 4. It is installed in maintenance vehicles or carried by maintenance staff to be used in radio communication between maintenance center and maintenance staff	-

Automatic Fare Collection

High-speed railway and general railway section
- This facility produces and collects boarding ticket automatically for the use of high-speed railway
- Counter style terminals that produce boarding tickets, automatic ticket vending machines to let passengers buy tickets directly, and automatic gate machines are installed at high-speed railway stations (17 stations). Only Counter style terminals are installed for general railway section

For general railway (Metropolitan area subway section)
- This facility produces and collects subway ticket automatically for the use of metropolitan subway
- Support automatic gate process for deferred payment (credit) transportation cards (7 types), and charging and gate processes for prepaid (direct debit) transportation card (1 type)
- Install and operate at metropolitan subway stations (109 stations)