1. A Presentation on DX -2000 EPABX a product of Coral Telecom Limited

2. Models & Cards of DX series 2

3. Models of DX series Mini - Max. 40 ports Medium - Max. 72 ports Large - Max. of 120 ports XL - Max. of 248 ports XXL - Max. of 376 ports SL - Max. of 504 ports 3

4. Cabinets 4 MINI & MEDIUM PSU card CPU card MINI has 5 peripheral slots MEDIUM has 9 peripheral slots

5. Cabinets 32 port module can be extended for 40 ports. 64 port module can be extended for 72 ports. For this tone slot will be modified for peripheral slot. So with 40 / 72 ports only compact CPU can be used. Tone slot of 120 port module can not be modified. 5

6. Cabinets 6 PSU CardCPU card 9th slot from right Tone card 10th slot from right If CCPU is used, the TONE slot will be vacant PSU Card CPU card 9th slot from right Tone card 10th slot from right Bridge card 9th slot from right LARGE XL RACK 1 RACK 2

7. Cabinets 7 PSU Card CPU card 9th slot from right Tone card 10th slot from right Bridge card 9th slot from right XXL RACK 1 RACK 2 RACK 3 Bridge card 9th slot from right PSU Card

8. Cabinets 8 PSU Card CPU card 9th slot from right Tone card 10th slot from right Bridge card 9th slot from right RACK 1 RACK 2 RACK 3 Bridge card 9th slot from right PSU Card RACK 4 Bridge card 9th slot from right PSU Card SL

9. Cards of DX series Categories of cards used in DX series PSU cards CPU cards Shared service cards Subscriber Line cards Trunk Line cards 9

10. PSU Cards DX XL PSU ( AC to DC PSU) Works on 230V AC input. Output 24 Volt dc / 75 V ac Ringer / 28 Volt Battery Charging voltage / 48 Vdc (Optional). One PSU can support upto 248 ports (deponds on load). 512 PSU ( DC to DC PSU) Plug-in card. Works on 48V DC input Output 24 Vdc / 48 Vdc / Ringer 75 Vac. One PSU can support upto 248 ports. 10

11. PSU Cards DX XL PSU has an optional 48 V section which can support upto 4 line cards in long loop. For all installations requiring 48V in more than 4 line cards, external FCBC is recommended. 11

12. CPU Cards CCPU ( Compact CPU) It is used upto 120 ports maximum. 89C52 based CPU. In-built tone card. Single DTMF dialer. Internal Hold On Music Jack for external music. One serial port. One parallel port. 12

13. CPU Cards SL CPU For maximum 504 ports. AM186ES based CPU. Requires SL tone card. Two serial port. One parallel port. 13

14. Shared Service Cards TONE –It occupies a fixed slot in the system. –Various types of dial tones –Action Port. –Single number DTMF dialer –Hold On Music –Howler Tone. –1 No. paging ports. –SL Tone does not have any 3 party conference. 14

15. Shared Service Cards VSN2 & VSN8 VSN2 card has 2 no. voice ports, used for Voice Guidance. VSN2 has two independent 3 party conference circuitry. With CCPU, 3 party conference of VSN2, can not be utilized. With CCPU, 3 party conference is with CCPU itself. SL CPU requires VSN2 for having 3 party conference facility. VSN8 is an 8 port card & can be used only with SL CPU. No conference circuit with VSN8 15

16. Shared Service Cards 8 Party Conference card Only single number conference card can be installed. MFC card (Works only with SL CPU) MFC is a 4 port card & occupies one full slot in the system. Any number of MFC cards can be used. DTM card (Works only with SL CPU) Used for generate the DTMF CLI on SLT & to increas the No. of DTMF dialers DPC card (Works only with SL CPU) DPC card can be used for eight independent zone paging. It works only with SL CPU. 16

17. Subscriber Line Cards There are 2 variants in line cards – a.LCS 1 b.LCS 3 LCS 1 is having normal extension functionality with CLI + Msg Waiting Lamp. LCS 3 = LCS 2 + Reversal extending Msg waiting Lamp / Line reversal extending, is available only with SL CPU. 17

18. Subscriber Line Cards DLC is an 8 port card for connecting 2 wire Coral Key telephones. In the ATD card the first four ports are the digital ports (similar to the DLC ports). 18

19. Trunk Line Cards Trunk Card is an 8 port card; Can be used for connecting to a PSTN line In-built feature - Line reversal sensing DTMF CLI detection Optional features – FSK CLI detection, 16Khz metering sensing 16Khz sensing will work only with SL CPU 19

20. Trunk Line Cards ATD card has 4 trunk ports - the last 4 ports 16Khz is not available with ATD card. However it will support line reversal & CLI on analog trunks. DTD card is having 2 digital ports, 2 DTMF dialer ports & 4 analog trunks. DID card is an 8 port card, which can be connected to the DID lines (Loop extend) from the PSTN DID card has on-board -48V PSU for feeding line voltage. 20

21. Trunk Line Cards TWT / BWT is an 8 port card which can be connected to any LE (Loop Extend) or LD (Loop Detect) line for connecting two independent systems. TWT supports the following signaling – Decadic. MFC. DTMF only for outgoing. 21

22. Trunk Line Cards E&M card is an 8 port card, which can be used for connecting to an E&M line for connecting two independent systems Supports – Decadic & DTMF signalling. E&M supports CLI also. MTC is an 8 port card used for connecting to magneto telephones Used only in Defence & Railways 22

23. Trunk Line Cards E1 card has 30 digital trunks which can be connected to E1 lines from PSTN or for inter- connecting two independent systems E1 card can be used only with SL CPU A maximum of 2 No. E1 cards can be used in a system. E1 card supports decadic / Mfc & dtmf signaling. For DTMF signaling, VSN2 card should be present in the system. 23

24. Trunk Line Cards BRI card is a 2 port card which can be used for connecting ISDN BRI lines from the PSTN. BRI card is compatible with all types of CPUs. 24

25. New DX 248 Port CPU –Supports Maximum 248 Ports. –On board 2 No. E1 / PRI. –Existing E1 cards will not work with this CPU –Existing Line Cards will not work with this CPU. 25

26. Thanks any queries mail to pradnyil@coraltele.com © Copyright 2011 CORAL TELECOM LIMITED The information provided in this document is not intended for use by or distribution to any person in any jurisdiction where such use or distribution would be contrary to the law or regulation or would subject Coral Telecom Limited or its third party agents to any regulatory requirements within such jurisdiction. You are required to satisfy yourself that you are not subject to any local requirement which restricts or prohibits you from using or distributing the information provided in this document.