Cabletron Systems CBUQBR User Manual
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The Quad Basic Rate Module80-14004000-01 1–7Should problems be found with long lengths of ISDN cable, the jumperscan be put IN to enable the 120R termination resistors for each portindividually.1.5 CBUQBR Status LEDsThe status LED’s are illuminated under the following conditions:LED Colour ConditionsChannel inUse(B1/B2)Green When a call is active,i.e. the relevant ‘B’channel is in use (including in use for aTalkwire call)L 1 Green When ISDN Layer 1 (physical activation) isactiveL 2 Green When ISDN Layer 2 (LAPD) is activeALERT Red When an ALERT is being sent to the CBUGSM1.6 Management and ControlThe CBUQBR operates in conjunction with a CBUGSM for configurationpurposes so there is no directly connected command port. Under normalconditions the majority of commands are initiated by other applicationcards so only a limited set of commands are available directly to theuser.Please see the manual on the Shelf Systems for details of how to usethe CBUGSM. |
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