Nortel 600 Series Manual page 85

Table 2-BX:
NT6X18AA Type B Line card - settings for switch in location B
Release Level
2S, 2T, 2V, 2W, 2X, 2Y, 2Z, AA, AB, AC
August 2006
Note: For LPDS (loop start with disconnect signal), the NT6X18AA pack DIP-
switches should be set for "Ground start."
For Generic 602.20
Switch settings for printed circuit packs
Option
Ground Start
Loop Start
08.01
2-78
Switch setting
GD
LP
NTP 297-3601-316