Lucent Technologies Release 7 User Manual
DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
Maintenance for R7r
555-230-126
Issue 4
June 1999
Hardware Configurations
2-6
Carriers in Multi-Carrier Cabinets
2
Expansion Control Carrier (J58890AF)
The Expansion Control Carrier is located in position A of each EPN.
Table 2-3
describes the function of each carrier slot.
Table 2-3.
Expansion Control Carrier Slots
Slot Name
Circuit Pack
Code
Notes
POWER UNIT
(left side)
(left side)
Power Unit (+5V)
631DA1
Required for
AC-powered systems
AC-powered systems
644A1
Required for
DC-powered systems
or empty
DC-powered systems
or empty
MAINTENANCE
Maintenance
TN775B
Required
TONE-CLOCK
Tone-Clock
TN2182
Required
EXPN INTFC
Expansion
Interface
Interface
TN570
Required
2 to 19
Port Boards
Any common port
board. Slot 2 may
house a second EI if
the configuration
requires one.
board. Slot 2 may
house a second EI if
the configuration
requires one.
POWER UNIT/
18, 19
18, 19
Power Unit, Neon
TN755B
Required for certain
features; otherwise will
accept any common
port board.
features; otherwise will
accept any common
port board.
POWER UNIT
(right side)
(right side)
Power Unit
(-48V/-5V)
(-48V/-5V)
631DB1
Required for
AC-powered systems
AC-powered systems
645B1
Required for
DC-powered systems
DC-powered systems
649A
TRI PLS OUTPUT for
DC-Powered cabinets
DC-Powered cabinets