Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 659

Figure 3-1
NT3T11 Interface Box connectors (rear view)
3T12 CABLE
For connection of
72-pin NT3T12
cable
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Section 060-INDP-710 DMS-10 Switch Specific Data 7-9
For connection of
60-pin ribbon cable
to
J1
1
60
A B A B
GR
WH
T N
or or
For connection of
12 VDC power
cables