Global Patent Index - EP 0974180 A1

EP 0974180 A1 2000-01-26 - SYSTEM COMPRISING HOT INSERTABLE/REMOVABLE FUNCTION UNITS

Title (en)

SYSTEM COMPRISING HOT INSERTABLE/REMOVABLE FUNCTION UNITS

Title (de)

SYSTEM MIT FUNKTIONSEINHEITEN ZUM HEISSEN EINSTECKEN UND HERAUSZIEHEN

Title (fr)

SYSTEME COMPORTANT DES UNITES FONCTIONNELLES ENFICHABLES OU DESENFICHABLE "A CHAUD"

Publication

EP 0974180 A1 (EN)

Application

EP 99900605 A

Priority

  • EP 99900605 A
  • EP 98200356 A
  • IB 9900160 W

Abstract (en)

[origin: WO9940665A1] In a system comprising a cabinet (2) functional units (6) have to be inserted without switching off the power supply (4). Without precautions damage to the functional unit can arise by the hot insertion. One potential cause of damage is that the voltage on terminal D' which should be -48 Volt becomes higher that the voltage on terminal C' which should be -5 Volt. This can occur due to transient phenomena when hot-inserting the functional unit. To prevent this, a diode (11) is connected between the terminal D' and C'. In an embodiment of the invention, the SLIC (12) is connected to the terminal D' via a diode (10) to prevent that a high current can flow from terminal D', via the diode (11) to terminal C'.

IPC 1-7 (main, further and additional classification)

H02H 3/18; H02H 9/04

IPC 8 full level (invention and additional information)

H02H 9/04 (2006.01); H02H 3/18 (2006.01); H02H 9/00 (2006.01); H02J 1/00 (2006.01)

CPC (invention and additional information)

H02H 9/004 (2013.01)

Citation (search report)

See references of WO 9940665A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9940665 A1 19990812; EP 0974180 A1 20000126; JP 2001520000 A 20011023

INPADOC legal status


2005-02-02 [18W] WITHDRAWN

- Effective date: 20041209

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000214

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB