Nortel DMS-100 Series Maintenance Manual page 28

2-8 Star Remote System hardware
Figure 2-5 NTTTR87AA quad frame carrier card with NTMX81AA packlets
NTMX81AA
DS-1 packlets
NTMX81AA (DS-1 interface card)
The NTMX81AA cards reside in the NTTR87AA quad frame carrier card.
The DS-1 interface card has DIP switches for setting the length of the DS-1
link to the cross connect or transmission equipment. The following table
297-8353-550 Standard 05.01 March 2001
NTTR87AA
quad frame
carrier