Nortel QPC757 Installation Manual page 115

NTD12 Dual-port DTI/PRI card description and installation
Table 28 - External connectors and LEDs
Function
Switch
Connectors
LEDs
Faceplate
Designator
ENB/DIS Plastic, ESD
protected
Port 0 Clock 0 RJ11 Connector
Port 0 Clock 1 RJ11 Connector
Port 1 Clock 0 RJ11 Connector
Port 1 Clock 1 RJ11 Connector
J5 TRK 9 Pin Female
D Connector
J6 DCH 26 Pin Female
D Connector
OOS 2 Red LEDs
DIS 2 Red LEDs
ACT 2 Green LEDs
RED 2 Red LEDs
YEL 2 Yellow LEDs
LBK 2 Green LEDs
DCH Bicolor Red/Green
LED
Type
Card Enable/disable switch
Connects reference clock to
Clock Controller card
Connects reference clock to
Clock Controller card
Connects reference clock to
Clock Controller card
Connects reference clock to
Clock Controller card
Two external DS-1 Trunk 0
and Trunk 1
Connects to DCHI or MSDL
ENET 0 or ENET 1 disabled
Trunk 0 or Trunk 1 disabled
Trunk 0 or Trunk 1 lines
active
Red Alarm on Trunk 0 or
Trunk 1
Yellow Alarm on Trunk 0 or
Trunk 1
Loop Back test being
performed on Trunk 0 or
Trunk 1
NTBK51AA status
Page 107 of 188
Description
ISDN PRI Installation