Nortel Networks OPTera Metro 3500 - Manual (Page 263)

Hardware feature descriptions 3-35
Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Figure 3-16
DS1 1-28 Rear I/O module (NTN452BA)
EX1155p
Figure 3-17
DS1 29-56 Rear I/O module (NTN452DA)
EX1155p
Out (DS1 1-28)
In (DS1 1-28)
Alignment tab
Lock/eject
lever
Out (DS1 29-56)
In (DS1 29-56)
Alignment tab
Lock/eject
lever