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Bharat Electronics Limited

Unit Level Switch Board (ULSB Mk III)


Unit Level Switch Board (ULSB Mk III)

Product category :Military Switching Equipments

ULSB-MkIII

Unit Level Switch board MK-III(ULSB MK-III) is a state-of-the-art automatic telephone exchange designed to meet the communication requirements of Army at unit level.

It is based on digital stored program control technology with Time Switching concept and is completely non-blocking

This exchange is having latest features like ISDN ports and E1 trunks. It supports 24 POTS, 08 Magneto, 08 ISDN subscriber ports. It has connectivity to other Switches and networks (ASCON, AREN) through Analogue Trunks viz. LD/ E&M and CO and digital trunks E1 (QSIG and CAS MFR2). It works both as Local and Transit Exchange. A Keyboard, LCD display and Head Set is provided as User friendly Operator Console to handle various operator features. A LAN port is provided to connect a Laptop PC(with Windows) to work as MMI for system administration.

For high system reliability all critical elements of the eqpt such as matrix, control processors are duplicated to produce redundancy. Also distributed power supply scheme is used. Modular concept has been used for ease of maintenance and system capacity enhancement.

The ULSB MK III is man portable and designed for vehicle mounting.

SYSTEM FEATURES

  • Automatic Exchange with EPABX features
  • Provides Auto Subscribers and ISDN subscribers
  • Interface to other Exchange through Junction Line, Analog trunks, E1 interface using QSig/PRI, CAS MFR2
  • Redundancy of control cards
  • User friendly MMI
  • Diagnostics

SUBSCRIBER FEATURES

  • Auto call back
  • Call forward
    • Busy
    • No reply
    • Unconditional
  • Call diversion/ Deflection (forward and follow me)
  • Call pick up
  • Call transfer
  • Calling Line Identity Presentation (CLIP)
  • Calling Line Identity Restriction (CLIR)
  • Connected Line Identity presentation(COLP)
  • Connected Line Identity Restriction(COLR)
  • Do –Not-Disturb
  • Priority/Pre-emption
  • Malicious Call Tracing(HOTLINE)
    • Direct Hotline
    • Delayed hotline

OPERATOR FEATURES

  • Alarm indication
  • Instruction
    • Instruction on busy Extension and External Line
    • Forced release
  • Queue indication
  • Recall to PBX Operator

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