IMTS

Intelligent Metallic Test System (5U Shelf type)
Key Customers
IPS Service Providers/ Electrical Grid/
Mobile Communication Providers

Basic Informations

Model IMTS
Type Intelligent Metallic Test System (5U Shelf type)
Interface 50P Camp Connector_10port
IEEE 802.3 Interface_RJ-45
Applied Fields Line Tester(RES/CAP/DCV/ACV/DCC/ACC)
Frequency Measurement(Noise, tone_Tx/Rx)
Monitoring and Call
DC-48V(-43.5V ~ -54VDC)
Size IMTS-M/S 584(W) X 254(H) X 280(D)
MTAU 584(W) X 254(H) X 210(D)
LIST

Product Overview

Intelligent Metal Test System (IMTS) is a measurement device for measuring the characteristics of various lines, transmitting signals, and performing verification tests by connecting the main test points of the KT dedicated line section to identify the point of malfunction. IMTS is used to replace exiting Voice Frequency Test Unit (VFTU) system, as it became deteriorated, and developed to maintain compatibility with existing equipment, solid line cable, and Motion Preservation System (NeOSS). Also, Elementary Management System (EMS) is developed along with IMTS in order to improve lack of convenience on maintenance of existing equipment, by providing more graphical user interface.

Product Features

IMTS consist of IMTS-M/S (IMTS-M or IMTS-S) shelf and Metallic Test Access Unit (MTAU) shelf, and Local Access Jack Panel (LAJP), Local Access Test Terminal (LAT), and EMS are selectively tested and operated. IMTS-M/S: Responsible for the main control functions of IMTS and provide all the test functions.

  • IMTS-M/S: Responsible for the main control functions of IMTS and provide all the test functions
  • MTAU: Accommodates a dedicated line to subscribers and performs signal contact control
  • LAJP: Enables various precision tests other than the measurement functions provided by the IMTS by monitoring the status of the connected subscriber line from the MTAU with an audible signal, or by connecting the line to the Jack Panel
  • LAT: Enables full-function measurement and testing functions provided by IMTS to enable testers in base station to perform the same level of testing func-tions as those in customer centers
  • EMS: Provides analysis on usage status or failure status of device, and device control function such as initializing setting of device or changing setting values

IMTS-M can accommodate up to 28,800 subscriber lines based on 2-wire type, and is eligible to accommodate up to 115,200 subscriber lines by expanding up to 4 units. It can also be replaced by IMTS-S, which has maximum capacity of 288 subscriber lines based on 2-wire type.

The configuration according to the line capacity of this device is shown in the following table.

  • Capacity of lines for each IMTS model
Classification IMTS-S IMTS-M IMTS-M Extended
2-Wire Type 288 28,800 115,200
4-Wire Type 144 14,400 57,600
6-Wire Type 96 9,600 38,400
  • Structures for each IMTS model

Configuration using IMTS-S

Configuration using IMTS-M

Specification

Dimension
(W x H x D)		 Rack 700 x 2200 x 365
IMTS-M/S 584 x 254 x 280
MTAU 584 x 254 x 210
LAJP 584 x 43.7 x 266
Input Power DC -48V DC (-43.5V ~ -54V DC)
Power
Consumption		 IMTS-M 36.9W
IMTS-S 17.4W
MTAU 4.5W
LAJP 3.9W
Electrical
Characteristic		 IMTS-M/S Input Loss: Max 0.2dB
Cross Talk : Min 70dB
MTAU Input Loss: Max 0.2dB
Cross Talk : Min 70dB
Environment
Standard		 Operating Temperature
& Humidity		 Standard Temperature Standard Relative Humidity
23℃ 50%
Operation Limit Temp. Range Absolute Humidity Range
Nominal Allowance 15℃ ~ 28℃ 40% ~ 70%
Short-Term Allowance 2℃ ~ 50℃ 20% ~ 80%
Short-term condition can be up to 72 consecutive
hours or within 15 days from one full year
Storage Temperature
& Humidity		 Standard Temperature Standard Relative Humidity
-35℃ ~ 70℃ 5% ~ 95%
Vibration Standard 5Hz ~ 100Hz 0.5g (Acceleration of Gravity)
Noise Standard Standard of 1.5m from equipment, Max 60 dBA
Electromagnetic
Interference		 Electromagnetic Conduction Frequency
Shift (MHz)		 Limit (dB㎶)
Peak Average
0.15 ~ 0.5 79 66
0.5 ~ 30 73 60
Electromagnetic Emission Frequency Range (MHz) Peak Limit (dB㎶)
30 ~ 230 40
230 ~ 1000 47

IMTS Structure

As show in Figure 3, the IMTS device can be installed in a general open rack with size of 700 (W) x 2200 (H) x 365 (D). If a Power Distribution Panel (PDP) currently used in KT is installed on the upper rack, space for IMTS-M/S or 5 MTAU shelves is available.