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Communication Manager Maintenance-Object Repair Procedures
1178 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
Each PN in a direct-connect configuration must be connected to the other PNs through a fiber
link. Each PN has one EI that functions as an Archangel. This EI must be connected with fiber
to an EI. If an EI is functioning as an Archangel (bus master), its amber LED will be flashing at a
rate of 2 seconds on and 200 ms off.
Figure 62
shows the location of EI circuit packs in a typical duplicated PNC, direct-connect
configuration.
Figure 62: Direct Connect Configuration with Duplicated PNC
In a duplicated PNC there is an A-side and a B-side PNC. Every EI in this diagram is labeled
with an A or a B designating to which PNC it belongs. Note that a PNC’s designation (A or B)
does not relate directly to the carrier where its EIS reside. Again, only one of a PN’s EIs can
function as the Archangel (TDM-bus master). A PN’s EI that is:
● On the active PNC
● Logically connected to the media server
is the only one that can function in this mode. In normal operation, its amber LED should be
blinking at a rate of 2 seconds on and 200 ms off.
PPN
CAB 1
CARRIER D
CARRIER C
EPN
CAB 2
CARRIER B
CARRIER A
EPN
CAB 3
CARRIER B
CARRIER A
FIBER 1 (A)
FIBER 1 (B)
FIBER 2 (A)
FIBER 2 (B)
FIBER 3 (B)
FIBER 3 (A)
E E
E E
E E
E E
E E
E E
I I
I I
3 2
3 2
Slot #
Slot #
Slot #
2 1
2 1
2 1
2 1
Slot #
Slot #
Slot #
I I
I I
I I
I I
(A) (A)
(A) (A) (A) (A)
(B) (B) (B) (B)
(B) (B)