Avaya Definity SI Maintenance Manual page 1593

EXP-INTF (Expansion Interface Circuit Pack)
Figure 10-32. Expansion Interface Packet Interface Test—EPN to EPN
555-233-123
Packet Bus ( PPN )
EXP-INTF
PKT-
CTRL
EXP-INTF
Packet Bus ( PN X )
EXP-INTF
EXP-INTF
UNDER TEST
Packet Bus ( PN Y )
EXP-INTF
EXP-INTF
Issue 4 May 2002 10-807