16.EPABX

16.00.00 Bidder shall provide one EPABX, System shall be installed

         at Thermal Power Plant area. Bidder shall provide all

         system/ equipment described  in this  specification. 

 

16.01.00 (a) Expandability – The EPABX System shall be equipped with

         500 Extn. lines. The  system shall be expandable up to 1000 

         lines  in  the future. The bidder shall state the maximum           

         expandability (No.of ports) in the proposed system.

 

  (b)    The EPABX shall be equipped with empty slot to add more module to increase capacity to another 500 lines.  Bidder shall provide fully wired exchange for 1000 lines up to MDF.

 

  (c)    The EPABX shall be of approved technology of  Department

         of  Telecommunications.   A copy of the  `DOT’  approval

         letter shall have to be enclosed along with the bid.  The

         exchange   shall   have   facility   to   connect    P&T

         (D.O.T/Trunk)  lines.   The exchange   shall  also  have

         facility   for   interconnection/  tie-up   with   other

         telephone  exchanges. 

 

  (d)    The  bidder  shall submit TEC approval  certificate  for

         quoted model of EPABX System along with offer.

 

  (e)    The  EPABX  System  shall be based on  minimum  32  bit,

         Redundant  hot standby   Microprocessor &  power  supply.

 

16.02.00 Tie Lines

 

    a)   Bidder shall connect 32 trunk line with  Existing exchange.

   

    b)   Bidder  shall provide provision to connect 24 trunk line

 

         with P  &  T/  BSNL Exchange.      

    

    c)   Bidder shall provide provision to connect 16 Nos. trunk line

 

         with GSM.

 

    d)   Bidder shall connect 8 Nos. trunk line with PLCC Exchange.

 

    e)   Bidder  shall  connect 2 nos. Tie lines with P  A  System.

         Bidder shall provide all hardware/software/cable etc. for

         above Tie lines along with Exchange.

 

16.03.00  Environmental Condition

 

    a)   The  system  shall be capable of working in  a  suitable

         ventilated  non air conditioned environment. The  bidder

         shall  confirm  in their offer that  equipments  offered

         shall  not  required  air conditioning  and  shall  work

         satisfactorily  in  normal ventilated  room.    

 

    b)   The environment conditions limit :-

 

   (i)   Temperature  -  0 to 50 Deg.C

  (ii)   Humidity     -  0 to 95%

 

16.04.00 The  EPABX  System  must  be  based  on  latest  digital

         technology   using   pulse   code   modulation  /   time

         division  multiplexing (PCM/TDM).

 

16.05.00 (i)The EPABX  shall be able to handle analogue/  digital

         trunk interface as per National/ International standard.

 

  (ii)   The   EPABX   shall  support   National/   International

         standards interfaces for terminals/ PC.

 

 (iii)   EPABX  shall be able to provide simultaneous voice/ data

         transmission conforming to ISDN.

 

  (iv)   The  EPABX   shall have integrated voice mail  system  4

         ports with 500 hours storage capacity.

 

  (v)    The  digital telephone set shall be able to  connect  to

         the exchange by two normal wires. Separate power feeding

         shall not be used.

 

  (vi)   The  EPABX   shall support direct  in  dialing.  DID/DOD

         facility with CLI.

 

 (vii)   The EPABX  shall have the facilities to connect computer

         facsimile,  multifunctional telephones &  paging  system

         through suitable  interface common to all such devices.

    

16.06.01 The   cabinet   design  shall   provide   for   adequate

         ventilation  to dissipate heat due to energy loss.

 

16.07.00   Features

 

  (I)    System Features    

 

  (a)    Extension to extension dialing: It shall be possible  to

         establish  internal calls automatically by  dialing  any

         No. without assistance of the attendant.

 

  (b)    Direct   outward  dialing:  It  shall  be  possible   to

         establish  external calls automatically by  dialing  any

         No. without assistance of the attendant(subject to  class

         of service).

  (c)    Provision  of  DID & DISA: It shall  have  facility  for

         direct  inward dialing and direct inward station access.

 

  (d)    Direct  outwards  Station  Access(DOSA):  Any   Extn. can

         access  the trunk lines of the system  through  personal

         pass code to make outward calls from outside.  All  DOSA

         calls remain in account of that particular Extn.

 

  (e)    Direct  Station Selection (DSS): Just pressing a  single

         key  the operator or Extn. can directly call  an  Extn. or

         access  the  trunk line without hassles  of  pressing  3

         digits.

 

  (f)    Multi  Level  Voice  DISA:  When  ordered  as  an  extra

         feature/card,  this will enable the systems  to  provide

         auto  attendant service to outside callers  to  directly

         access  the  desired extension by  surpassing  the   the

         operator.   The  caller should be step  wise  guided  by

         multi-level voice messages.

 

  (g)    Access to Exchange Network: It shall be possible  for an

         extension  to  get  access to  public  network  with  or

         without  the  attendant in such cases.   Facility  shall

         exist  for  the attendant to either  dial  the  required

         No.or to merely extend the junction to the extension and

         permit the subscriber to dial the No.

 

  (h)    Privacy  of call: Full privacy of conversation shall  be

         available  on all calls whether established directly  or

         by  the  attendant.  A  warning  tone  of  a   specified

         frequency shall be applied when trunk offering  facility

         is exercised by the attendant on an extension user.

 

  (i)    Class  of  Service:  It shall be possible  to  allow  an

         extension control over the  telephone usage by providing

         him suitable class of service.

 

  (j)    The  coding  technique  to be  used  is  ALAW/CODEC  per

         channel.

 

  (k)    System   should  have  provision  for   Automatic   Last

         No. Redial up to 20 times on Junction Line. 

 

  (l)    During  night,  when the board is shut,  external  lines

         should be linked to any pre-defined extensions.

 

  (m)    Provision  for connecting recorded voice/  answering  to

         make  available extensions to an incoming  call  without

         the help of operator.

 

  (n)    Flexible Numbering Scheme: System should have  provision

         for  Flexible  Numbering  plan  up to   four  digits  for

         extensions.

 

  (o)    EPABX shall ISDN ready and shall provide subscriber ports/

         LAN Interface for switched computer data connectivity for

         36 Subscriber using V 24/ equivalent Interface  Digital         

         phone.               

 

  (p)    Universal  Port Configuration: All ports of  the  system

         should    be    identical   to    facilitate    flexible

         configuration of the  system as per user needs.

 

  (q)    Discriminate   Ringing:  The  system   should    support

         discriminate  ringing  to indicate internal  &  external

         calls.

 

  (r)    Multiple  Consoles:  The system  should  support  multiple

         No. of consoles for EPABX Systems.

 

 

  (s)    Mixed   Station  Dialing:  To  support  al  the   features

         irrespective of type of telephone instruments i.e. DTMF  or

         DECADIC.

 

  (t)    Versatile ASMDR the system should  support ASMDR, which is

         a  call accounting application that can record & print  up

         to at least 3500 calls without dedicated printer.

 

  (u)  Power  Failure Transfer: In the case of Power Failure  all

       P&T/ CO lines become available on the  pre-set Extensions.

 

  (v)  Programmable  Class of service the system  should  support

       programmable  class  of  service for  P&T  (STD/ISD/Local)

       dialing as per need.

 

  (w)  Direct  call Billing in Rupees: The system should  support

       direct  call  billing(near  value)through  parallel/serial

       port printer without computer.

 

  (x)  Call   billing  printout:   The  system   should   support

       versatile multiple combinations of direct printout options

       with total amount viz, Extension wise, Trunk wise. Today’s

       call  print  out, group wise  printout,  particular  date,

       particular  month, particular time, particular phone  etc.  

 

  (y)  Calling  Line Identification (CLIP): The incoming  calling

       No.is  displayed on Key/Analog Phone even if the  call  is

       transferred  by  the operator, it is  compatible  to  DTMF

       (Optional).

 

  (z)  Remote  Maintenance:  The system programming can  even  be

       done from remote locations.

 

16.08.00  Extension Features

 

  (a)  Automatic Call Back: Facility shall exist for an extension

       user on encountering a busy signal on a called  extension,

       to  invoke  the automatic call back feature by  dialing  a

       code before hanging up.  When both the calling and  called

       parties  are  free, the call should be  automatically  put

       through on no answer the call may be disconnected after  a

       specified  period.  (This  facility  should  be  available

       throughout  the  network  if  more  than  one  EPABX   are

       interconnected in a Private Network).

 

  (b)  Call Forwarding: An extensions with this class of  service

       shall be  able to transfer all incoming calls, temporarily

       to another pre-selected extension. Such requests shall  be 

       registered  by dialing a code followed by  the   extension

       No.  facility  shall  also  exist  for  cancellation  of  a 

       request  registered  earlier.  This  facility  should   be

       available  throughout the network if more than one  EPABX

       are inter- connected in a private network.

 

  (c)  Consultation  Hold:  An extension engaged on  an  external

       call (incoming or outgoing) shall be able to hold the call

       while making internal call for private consultation.   The

       external subscriber shall not overhear such  consultation. 

       There must be facility of music during hold condition.

 

  (d)  Brokers  Call:  An extension engaged on an  external  call

       (incoming  or  outgoing) shall be able to  hold  the  call

       while  making  another call than  alternate   between  the 

       two.   The   other   party  shall  not  over   hear   such

       consultation.   There must be  facility of  music   during

       hold  condition.   This  facility  should  be    available

       throughout the network if more than one EPABX are  inter-

       connected in a private network.

 

  (e)  Automatic  Call  Transfer:  It shall be  possible  for  an

       extension  user  to  transfer incoming  calls  to  another

       extension  with  or without help of  the  attendant.  This

       facility  should be  available throughout the  network  if

       more  than  one  EPABX are interconnected  in  a  private

       network. 

 

  (f)  Executive/Secretary:  A  combination of  call  forwarding,

       consultation   &   hold  to  provide  for   executive   to

       selectively  ?  answer  calls.  This  facility  should  be 

       available  throughout the network if more than one  EPABXs

       are interconnected in a private network. 

 

  (g)  Executive  Over Ride:  There must be  facility   offereing

       priority  to  5  Min. extensions to  over  ride  on  going

       conversations.    This  facility  should   be    available

       throughout  the  network  if  more  than  one  EPABXs  are

       interconnected in a private network.  

 

  (h)  Access to Paging: Extensions and attendant shall have dial

       access  to  a  loudspeaker or any other  type  of   paging

       system where such a system exists.

 

  (i)  Conference  Call: It shall be  possible for  an  extension

       user(up to a  maximum number of 6 to talk to each other at

       the  same  time  on  a conference  circuit.   One  of  the

       extension  user  or  by  the  attendant  may  set  up  the

       conference  call.  This  facility  should  be    available

       throughout  the  network  if  more  than  one  EPABXs  are

       interconnected in a private network. 

 

  (j)  Call Pick-Up: It shall  be  possible for an extension user 

       to  pick-up incoming calls  of 6 to talk to each other  at

       the  same  time  on  a conference  circuit.   One  of  the

       extension  user  or  by  the  attendant  may  set  up  the

       conference  call.  This  facility  should  be    available

       throughout  the  network  if  more  than  one  EPABXs  are

       interconnected in a private network. 

 

  (k)  Call Re-Routing: It shall be possible for a call to be re-

       routed,  without  help  of the attendant,  to  other  pre-

       defined  extensions when certain conditions  when  certain

       conditions  apply.   This facility  should  be   available

       throughout  the  network  if  more  than  one  EPABXs  are

       interconnected in a private network. 

 

  (l)  Auto  call Disconnection: The system should facilitate  to

       fix the time of call beyond which is will be automatically

       disconnected.

 

  (m)  Dynamic   STD  Lock:   The  system  should  support   that

       individual    extension   can   lock    outward    dialing

       (STD/ISD/Local/mobile)  by a personal secret pass code  to

       prevent misuse by others.

 

  (n)  Paging on Key Phone: The caller can activate speaker phone

       of  the called extension to communicate in urgency in  own

       voice when Extn. is idle.

 

 

  (o)  Call Name & Extension No. on Display(Internal CLI): Name as

       well  as   Extn. No. of the caller is displayed on  the  key

       phone, facilitating to respond accordingly.

 

  (p)  Background  Music: The key phone user can enjoy the  light

       background  music  channeled from system when  voice  DISA

       Card  incorporated.

 

  (q)  Auto-  Answer/ Auto-Off: Key phone can be  programmed  for

       auto answer after  pre-set No.of incoming rings.  The  key

       phone   is   automatically   disconnected   when    caller

       disconnects.

 

16.09.00  Console Features

 

       Stand-alone  or  P.C.based  Attendant  Console  with   the

       following features:

 

  (a)  The  operator console should have soft/feather touch  keys

       with  easy  to   view  display and  busy  lamp  field  for

       extensions.   It will have easy handling facility for  all

       internal & external calls.

 

  (b)  Answering an Incoming Call

  (c)  Call Queuing

  (d)  Serial Call

  (e)  Call Waiting Display

  (f)  Call Selection

  (g)  Call Hold Facility

  (h)  Setting Up External Calls

  (i)  Trunk Offering

  (j)  Provision for Remote Supervisor Control

  (k)  Position Busy

  (l)  Night Service

  (m)  Head Phone Connectivity

 

16.10.00  Power Supply

 

  (a)  415  V  +/- 10%, 3 phase, 4 wire or 240 V +/-  10%  single 

       phase 50 Hz +/- 5% efficiency grounded power supply feeder

       from normal power supply source will be  made available by

       the owner at the Battery Charger. Contractor shall arrange

       for the required power supply and D.C. battery back-up for

       the total EPABX System.

 

  (b)  The battery and battery charger combination shall be  such

       as  to ensure  continuity of DC supply to EPABX System  at

       all times  without even momentary interruption of service.

       The  battery  shall be sized to supply DC power  to  EPABX

       System  for at least 10(Ten) hours during AC  power  supply

       failure in the  system.

       The battery charger shall  always be  ON  supplying DC power to EPABX System & at  the  same time charging the battery.

 

  (c)  Float cum Boost Chargers

 

       Each of the two sets of 2×100% redundant chargers shall be

       sized  to  meet the 120% load requirements  of  the  EPABX

       system plus recharge the fully discharged battery within 8

       hours.

 

       The chargers shall be self regulating, solid state silicon

       controlled,  full-wave rectifier type designed for  single

       and  parallel  operation  with  battery  and  shall   have

       automatic   voltage  regulators  for  a    close   voltage

       stability  even  when  AC  supply  voltage  and  DC   load

       fluctuates,   effective  current  limiting  features   and

       filters  on both input and  output to minimize  harmonics. 

       The  charger  output regulation shall be  +/- 1%  from  no

       load to full load with an input power supply variation  of

       +/-  10%  in voltage and +/-5% in frequency.  The  charger

       unit  shall  be  auto  start  facility  after  any   power

       interruption.

 

  (d)  Batteries

 

       The battery shall be lead acid PLANTE Type positive plates

       as  per IS-1652 for 10 (Ten) hours back-up for 100%  load.

       The plate shall be designed for maximum durability  during

       service  conditions including high rate of  discharge  and

       rapid  fluctuation  of load battery shall  be  mounted  on

       wooden  rack. Battery sizing calculation shall be  as  per

       IEEE  standard.

      

       The Bidder shall supply all types of accessories with  each

       Battery  set  for  maintenance  and  safety  equipment  for  

       maintenance personal.

 

    

16.11.00 The  equipment  shall be capable of  working  under  the

         howling line & junction limits as under:-

 

       i) Extension loop resistance of 1200 ohms for system.

      ii) Junction loop up to 1800 ohms.

      iii)Insulation lower limit 20 K ohms.

 

16.12.00   Tone  and  Ringing -  The system  shall  provide  standard

       tones  and  ringing  current as in  the  public  telephone

       network. The equipment and circuits for tones and  ringing

       shall be form part of main EPABX equipments.

 

16.13.00   There  shall  be  protection of  EPABX  system  from  high

       voltage,   current  transient,  lightening   occurring   on

       junction lines to the exchange.

 

16.14.00   All  Junction Boxes shall be made of Aluminium (LM 6)with

                      minimum thickness 3 mm with enclosure class IP-65. 

 

16.15.00 Bill Of Material for EPABX          Telephone Sets

 

   a)  Desk  top  Push Button operated          -   250 Nos.

 

       decadic type  with  tone dialing

       (ordinary) telephone set.

 

   b)  Telephone sets with CLI                  -    250 Nos.

   c)  Wall Mounted Telephone set               -     25 Nos.

 

16.16.00  Telephone Cable & Cabling

 

       Telephone  cables  of both PVC type &  Jelly  filled  type

       shall be  used as per the  application.

  a)   PVC  Type

 

    i) The  cables  shall  be   0.6  mm.   dia  annealed   tinned

       electrolytic copper conductor, PVC insulated, colour coded

       and twisted into pairs, laid up taped, PVC inner sheathed,

       galvanized round steel wire/strip armoured and overall PVC

       sheathed etc. conforming to ITD specification  No.S/WS-113

       and IS-1554  both as amended and revised up to date.

 

   ii) Unarmoured version of the cable specified above shall also

       be used in areas as detailed in enclosed drawings.

 

  iii) The  cable  sizes shall be standardised in  terms  of  the

       No.of pairs which shall be 101 pairs, 51 pairs, 21  pairs,

       11 pairs and 6 pairs only.

 

   b)  Jelly Filled Type

 

    i) The  cables  shall be  0.63 and 0.9 mm.dia  annealed  high

       conductivity  electrolytic  copper,  polythene  insulated,

       colour  coded, twisted into pairs, laid up, jelly  filled,

       polythene   sheathed,  galvanized  steel  tape   armoured,

       overall   polythene  sheathed  etc.  conforming   to   ITD

       specification  No.S/WT-129  as amended and  revised  upto

       date.

 

   ii) The  cable  sizes shall be standardised in  terms  of  the

       No.of pairs which shall be 100 pairs, 50 pairs, 20  pairs,

       10 pairs and 5 pairs only.

 

   c)  Power Cables

 

       Interconnecting  power  cables  between  battery  charger,

       battery  and  the telephone exchange shall be  heavy  duty

       1100 volts grade multicore stranded aluminium conductor,

       PVC   insulated,  FRLS,  extrucded  PVC  inner   sheathed,

       galvanized  round steel wire/strip armored  and  extruded

       PVC overall sheathed conforming to IS:1554 as revised  and

       amended upto date.

 

  d)   Conduits

 

    i) Conduits  shall be rigid steel, coated type; minimum  size

       of conduits shall be  limited to 20 mm.

 

    ii)Steel  conduits  with interior coating  of  silicon  epoxy

       ester for ease of wire pulling shall be seamed by  welding

       and  flo  coat metal conduit/ hot-dip  galvanized.   Steel

       conduits  shall  be  suitable for  installation  in  humid

       condition.  These shall be supplied in standard length  of

       5 M with Min.wall thickness as specified in IS:9537 Part-II.

 

  e)   Cabling

 

    i) Distribution of telephone system shall be  done by  cables

       generally laid  on Owner’s/ bidder ladder type cable trays.

 

   ii) In the buildings  and areas where  owner’s/bidder ladder

       type  cable trays will be  made available by  owner,  15     

       Mtrs. of telephone cables, however, shall be run through

       conduits from the nearest available owner’s cable  trays

       to  individual  telephone sets and  group  of  telephone

       sets,  junction  boxes,  sub-distribution  frames   etc.

       depending   on  the  location  of  telephone  sets   for

       termination & connection.

 

 iii)  In  the  case telephone cables for entering  a  particular

       area  /  building,  where  owner’s  cable  trays  are  not

       available,  the  cables  shall be  laid  directly  buried

       underground for that part.

 

         iv)  For telephone cables laid directly buried underground, the

       telephone  cables shall be  laid by excavating  trench  in

       normal soil up to a depth of 1 m unless otherwise shown  on

       drawings,  providing  75 mm of sand or riddle  earth  both

       above and below cable, providing precast concrete slab  on

       top  and  bricks  on sides for  cable  protection  against

       damage  and back filling.  The precast concrete  slabs  on

       top as specified above shall be marked ” MPPGCL  Telephone

       Cable”.

       

  v)   The  Contractor  shall  perform all  excavation  and  back

       filling   as   required  for  buried  cable   and   ground

       connections.

 

  vi)  For  addition  and  deletion of supply,  laying  of  cable

       bidder may quote unit prices separately.

 

16.17.00  Grounding

 

       All  metal  enclosures,  conduits,  junction/pull   boxes/

       Cabinets  shall  be   grounded in  compliance  with  I.E./

       Indian Standard.                  

 

 

16.18.00  BILL  OF  MATERIAL 

 

a.  CABLE (As per requirement)-Jelly filled cable.

 

b.  Drop Wires – As per requirement.

 

c.  Junction Boxes as per requirement.

   

16.19.00   Service Objectives

 

 (a)   Under   overload   conditions,  the  lost   call   figures

       applicable   shall  be  one  in  200  for  extensions   to

       extensions  call and one call in 100 for  junction  calls,

       overload  being  defined as 10% increase in  occupancy  of

       speech network and simultaneous 25% increase in the No.of

       calls.

 

 (b)   The selection time under full load is defined as the  time

       interval  between  the  instant  at  which  the   required

       information for selection of the outlet has been  received

       at  the  inlet and the instant at which outlet  is  ceased

       shall  not  exceed  in  99% of  the  cases  under  traffic

       overload 1.5 seconds.

 

  (c)  The switching  network  shall provide access to the  links

       & junction on fully non-blocking basis.

 

  (d)  The  system shall have inherent capability to monitor  its

       own performance and to detect, analyze & locate faults.

 

  (e)  The system should have remote  maintenance facility.

 

16.20.00   Testing

 

    a) Acceptance Tests(EPABX)

 

    i) Verification of all features/functional performance of the

       machine.

 

   ii) High voltage test (Flash Test at 1000 V)

 

  iii) measurement of loop resistance

 

   b)  Cable

 

  (i)  Testing  of  Jelly filled cable shall be as per  ITD  spec

       only.

 (ii)  Testing  of  FRLS cable shall be as per  Indian  standard/

       ASTMD/IEC/VDE standards.

 

  c)   Type Test(EPABX)

       Bidder shall submit following type test report for owner’s

       approval  as  per  IS-9000  or   equivalent  IEC  standard

       along with final acceptance test report.

 

   i)  Cold Test

  ii)  Dry Test

 iii)  Dump Test

 

  d)   Bidder shall submit Type Test Report of Battery Charger as

       per IEC-146.

 

  e)   Bidder shall submit Type Test Report of Battery as per

       IS-1652.

  f)   Bidder shall submit Type Test Report of Junction Boxes  as

       per IS-2147 (Degree of Protection Test).

        

       The above all Type tests shall be carried out at National/

       International laboratories.   

 

    16.21.00  Mandatory Spares

  

  (a) Controller card, Communication card, power supply module –

 One No. each type.

 

   (b) Extn. card -  10% of total quantity.

     (c) Fuses -   100% of total quantity

     (d) SCR   -   10 Nos. for charger

(e)  Telephone Set -

 

    (i) Desk Top(Ordinary Type) – 30 Nos.

(ii) Telephone set with clip – 20 Nos.

 

     (f) 20% Acid for Battery in container.

 

  16.22.00  Colour Shade

 

     (a) Panels (Charger, EPABX etc.)

 

          External    –  RAL 7032

 

          Internal    –  Brilliant White

 

      (b) Colour of Junction Boxes

 

          External    –  Apple Green

 

 6.23.00  Calibration & Maintenance Equipment

 

      (a) Digital Multimeters     -  4

 

      (b) Telephone cable fault  -  1

 

      (c) Telephone Dial Tester  -  1 

 

      (d) Digital Insulator Tester- 1

 

      (e) Telephone Line  Tester  - 1

 

      (f) Dual Beam Digital Storage-1 

          Oscilloscope

 

      (g) Stand Tool Box (with    - 2

          Multipurpose tool box,

          Screw drivers, spanners,

          Allen key, nose plier, files

          Etc.)