Nortel-networks Circuit Card Manual de usuario Pagina 323

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NT5D97 Dual-port DTI2/PRI2 card Page 323 of 906
Circuit Card Description and Installation
Table 113
External connectors and LEDs
Function
Faceplate
Designator
Type Description
Switch ENB/DIS Plastic, ESD protected Card Enable/disable switch
Connectors Unit 0 Clock 0 RJ11 Connector Connects reference clock 0 to
Clock Controller card 0
Unit 0 Clock 1 RJ11 Connector Connects reference clock 0 to
Clock Controller card 1
Unit 1 Clock 0 RJ11 Connector Connects reference clock 1 to
Clock Controller card 0
Unit 1 Clock 1 RJ11 Connector Connects reference clock 1 to
Clock Controller card 1
J5 TRK 9 Pin
Female D Connector
Two external E1 Trunk 0 and
Trunk 1
J6 DCH 26 Pin
Female D Connector
Connects to external DCH or
MSDL
LEDs ENET 2 Red LEDs ENET 0 or ENET 1 is disabled
DIS 2 Red LEDs Trunk 0 or Trunk 1 is disabled
OOS 2 Yellow LEDs Trunk is out of service
NEA 2 Yellow LEDs Local (Near End) Alarm
FEA 2 Yellow LEDs Far End Alarm
LBK 2 Yellow LEDs Loop Back test being
performed on Trunk 0 or
Tr un k 1
DCH Bicolor Red/Green LED NTBK51AA status
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