DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Hardware Configurations
2-4Carriers in Multi-Carrier Cabinets
2
Table 2-1 describes the function of each slot in the PPN Control Carrier.
Table 2-1. PPN Control Carrier Circuit Pack Slots
Slot Name Circuit Pack Code Notes
POWER UNIT
(right side)
Power Unit (+5V)
649A Required for DC-powered systems. TRI
PLS OUTPUT DC-Powered cabinets
SYS ACCESS/
MAINTENANCE
System Access and
Maintenance
TN1648 Required
DUP INTFC Duplication Interface UN330B Required for systems with duplicated
SPE
PROCR RISC Processor UN331B Required
TEST INTFC Used by field support to connect
diagnostic equipment
MEMORY 1 to 4 32 Mbyte Memory TN1650B Two required, up to four optional,
Release 5 and higher requires 3
PACKET INTFC 1
to 3
Packet Interface TN1655 One required, two slots reserved for
future use; with duplicated SPE, both
carriers must use same slot
TONE-CLOCK Tone-Clock TN780
TN2182
Required; TN780 required for interface
to external Stratum 3 Clock
MSS/ NET CON Mass Storage System/
Network Control
UN332 Required
DISK DRIVE Disk Drive TN1657 Required
TAPE DRIVE Tape Drive TN1656 Required
