Nortel DMS-100 Series Maintenance Manual page 35

Figure 2-7 Functional block diagram of the Star Hub control shelf
Up to 8 C-side DS-1s to LTC+, LGC+, or RCC2
Message link
0 2 4 6
NTMX81 NTMX81
Dual Dual
DS-1 DS-1
0 1
NTTR87AA
Matrix
Main
service
link 0
UMP
–48 V
NTTR87AA
NTMX81 NTMX81
NTMX81
Dual Dual
Dual
DS-1 DS-1
DS-1
0 1
Up to 8 DS-1s to Star Modules
8 10 12 14
NTMX81 NTMX81
Dual Dual
Unit 0
DS-1 DS-1
2 3
Normally inactive
RCP 0 (NTTR77AA)
CPU
Scan and
distribution
point
Mate service link 0
Ringing
generators
DMSX
–48 V
NTMX81
Dual
DS-1
2 3
DMS-100 Family NA100 Star Remote System XPM15 and up
Star Remote System hardware 2-15
Up to 8 C-side DS-1s to LTC+, LGC+, RCC2
C-side
Link numbers
1
NTMX81
Dual
Unit 1
DS-1
Packlet numbers
Normally inactive
RCP 1 (NTTR77AA)
CPU
P-side
Scan and
distribution
point
Mate service link 1
Power
converters
Local line
drawers
NTMX81
Dual
DS-1
Up to 1152 lines
Message link
3 5 7 9 11 13
NTMX81
NTMX81
Dual
Dual
DS-1
DS-1
0 1 2
NTTR87AA
Matrix
Main
service
link 1
UMP
–48 V
DMSX
NTTR87AA
NTMX81
NTMX81
Dual
Dual
DS-1
DS-1
0 1
Up to 8 DS-1s to Star Modules
15
NTMX81
Dual
DS-1
3
NTMX81
Dual
DS-1
2 3