The EWSD switch (Elecktronisches Wahlsystem Digital) is a telephone digital switching (exchange) system installed worldwide. It was first introduced in 1975 by Siemens AG as a replacement for the EWSA (analog technology). EWSD (also known as Electronic Digital Switching System/Electronic World Switch Digital in English), can work as both a tandem and local for landline and mobile telephony, and it can also serve as a Service Switching Point (SSP) and a Signal Transport Point (STP) in the Intelligent Network (IN). Nokia and Siemens formed a new company in 2007 called Nokia Siemens Networks, under which the EWSD system is currently supported.
Documentation Catalog
| Part | HECI | Description | |
|---|---|---|---|
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S30050-E5507-J100 EGPQEAL1XX | EGPQECK EGPQECK1XX | DC/DC CONVERTER DCCXI |
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S30050-E5507-J100 EGPQECK1XX | EGPQEAL EGPQEAL1XX | DC/DC CONVERTER DCCXI K1 |
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S30810-Q1257-X1-15-13 | EGCUGG1 EGCUGG1AAA | M:IOP:UNI |
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S30050-B5681-X101-10 S30050-B5681X | EGMYAEB EGMYAEBDAG | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-3 S30050-B5681X | EGMYAEB EGMYAEBDAA | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-7 S30050-B5681X | EGMYAEB EGMYAEBDAE | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-2 S30050-B5681X | EGMYAKU EGMYAKUDAA | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-6 | EGMYAEB EGMYAEBDAD | 10 FAN TRAY / BLOWER |
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S30050-B5681-X100-7 S30050-B5681X | EGMYAHD EGMYAHDDAA | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-12 S30050-B5681X | EGMYAEB EGMYAEBDAJ | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-5 S30050-B5681X | EGMYAEB EGMYAEBDAC | 10 FAN TRAY / BLOWER |
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S30050-B5681-X200-5-4 S30050-B5681X | EGMYAKV EGMYAKVDAA | 10 FAN TRAY / BLOWER |
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S30050-B5681-X100-3 S30050-B5681X | EGMYAKT EGMYAKTDAA | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-11 S30050-B5681X | EGMYAEB EGMYAEBDAH | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-4 S30050-B5681X | EGMYAEB EGMYAEBDAB | 10 FAN TRAY / BLOWER |
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S30050-B5681-X101-8 S30050-B5681X | EGMYAEB EGMYAEBDAF | 10 FAN TRAY / BLOWER |
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S30813-Q0217-X-1 S30807-U2594 | EGPQCBK EGPQCBK5AA | 18.2GB MDD MTG |
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S30122-U1453-X | EGMYANC EGMYANCDAA | 18.4GB MAG DISK DRIVE |
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S30807-U2594-X400-3 | EGMYAM8 EGMYAM8DAA | 18.4GB MDD KIT |
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S30807-U2594-X700-01 | EGMYAM8 EGMYAM8DAC | 18.4GB MDD KIT |
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S30807-U2594-X400-4 | EGMYAM8 EGMYAM8DAB | 18.4GB MDD KIT |
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CM634C08-A | CNTIU0P CNTIU0P6AA | 2 PORT V.35 |
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L50021-H7730-X1-1 | EGTSBB0 EGTSBB0AAA | 2108 TRK TESTG DEV |
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CM630A32-A4 | CNTIU0S CNTIU0S6AA | 2PORT V.35 |
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S30050-B5877-X-10 S30050-B5877X | EGMYACS EGMYACSDAG | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-3 | EGMYACS EGMYACSDAB | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-7 | EGMYACS EGMYACSDAE | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-13 S30050-B5877X | EGMYACS EGMYACSDAK | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-6 | EGMYACS EGMYACSDAC | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-12 S30050-B5877X | EGMYACS EGMYACSDAJ | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-5 | EGMYACS EGMYACSDAA | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-11 S30050-B5877X | EGMYACS EGMYACSDAH | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-4 | EGMYACS EGMYACSDAD | 6 FAN BOX ASSEMBLY |
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S30050-B5877-X-9 | EGMYACS EGMYACSDAF | 6 FAN BOX ASSEMBLY |
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S30805-C2707-X100-4 | EGBCTGE EGBCTGEARA | 7FT BAY |
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S30805-C2707-X100-3 | EGBCTG0 EGBCTG0ARB | 7FT BAY |
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S30805-C2707-X100-2 | EGBCTG0 EGBCTG0ARA | 7FT BAY |
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S30805-C2676-X500-3 | EGBYABX EGBYABXCAA | 7^ CUST EQUIPMENT RK |
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S30805-C2675-X100-4 | EGBCTK0 EGBCTK0ARC | 7^ DEV RACK |
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S30805-C2675-X100-3 | EGBCTK0 EGBCTK0ARB | 7^ DEV RACK |
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S30805-C2675-X100-2 | EGBCTK0 EGBCTK0ARA | 7^ DEV RACK |
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S30805-C2675-X500-3 | EGBCVK0 EGBCVK0ARA | 7^ DEV RACK |
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S30813-Q0164-X002-4-6 S30813-Q0164X | EGD1AS0 EGD1AS0BAA | 8 PORT LINE CARD |
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S30813-Q0164-X002-5-6 S30813-Q0164X | EGD1ASD EGD1ASDBAA | 8 PORT LINE CARD |
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S30807-U2594-X300-2 S30122-U789-X-273N ST391 | EGMYAE0 EGMYAE0DAA | 9.1GB MDD KIT |
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S30807-U2544-X-A2 | EGMYABG EGMYABGDAA | AAIU |
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S30807-U2544-X-A6 | EGMYAES EGMYAESDAA | AAIU |
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S30807-U2544-X-3 | EGMYADJ EGMYADJDAA | AAIU |
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S30807-U2544-X-A5 | EGMYACN EGMYACNDAA | AAIU |
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S30807-U2544-X-A4 | EGMYACM EGMYACMDAA | AAIU |
