Model : HMVM-150-20
1. Summary
HMVM is installed at the station to communicate between a control center and a train through 4W E&M or TCP/IP. It is capable of having a number of remote users such as Control Console and Remote Controller. It provides an effective, stable communication environment in the tunnel through the system, combining Base Station, Line Distributor, MU, Dual PSU and BATTERY
2. Features & Functions
- -Designed to be possible to add an extra unit for switchovers when a unit breaks down
- -LED Display-easy to recognize alarms & main status
- -Control Repeater & I/O signal level
- -CASCADE connection method ensures high reliability
- -Optical connection with RU makes minimizes transmission loss
- -Being able to work with a battery for emergencies in a blackout situation
- -Consisting of main- & sub-Power supply
3. Appearance
4. Standard
| Parameter | Standard |
|---|---|
| VHF Transceiver | Satisfied Std. KRS CM 0005-06 |
| VHF Receiver | Satisfied Std. KRS CM 0006-06 |
| Power |
Input Voltage : AC 220V±10% Output Voltage : DC 13.8V±10%(Changeable) Output Current Capacity: 20A or higher |
| Wired-Wireless Combiner |
Wireless combiner Transmission level: -4 dBm±10dB ( flexible ) Wired → wireless MIC Input Level: 0 → -30dBm( flexible by ATT ) Output Impedance: 600Ωf SINAD : 40dB or higher Distortion Rate : Less than 5% Detection for Breakdown : An interruption to the Power Supply, RF OUTPUT Breakdown |
| Optical Transmission |
Wavelength : M 1,300 ~ 1,320nm, 1,540 ~ 1,560nm Optical output : 3dBo(±30%) Band With : 100 MHz ~ 200 MHz |
*The above values of the parameters can be subject to change for the purpose of device improvement.
