Справочник Пользователя для Nortel Networks Circuit Card
NT5D97 Dual-port DTI2/PRI2 card
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Table 113
External connectors and LEDs
External connectors and LEDs
Function
Faceplate
Designator
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
Clock Controller card 0
Unit 0 Clock 1
RJ11 Connector
Connects reference clock 0 to
Clock Controller card 1
Clock Controller card 1
Unit 1 Clock 0
RJ11 Connector
Connects reference clock 1 to
Clock Controller card 0
Clock Controller card 0
Unit 1 Clock 1
RJ11 Connector
Connects reference clock 1 to
Clock Controller card 1
Clock Controller card 1
J5 TRK
9 Pin
Female D Connector
Female D Connector
Two external E1 Trunk 0 and
Trunk 1
Trunk 1
J6 DCH
26 Pin
Female D Connector
Female D Connector
Connects to external DCH or
MSDL
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
Trunk 1
performed on Trunk 0 or
Trunk 1
DCH
Bicolor Red/Green LED
NTBK51AA status