Nortel Passport 4400 Series Hardware Installation Manual page 109

Power Supply
Configuring the Power Supplies
Note: The following information applies to five-slot Passport 4400 units
The power supply at the bottom of the stack is called the master supply. All other
supplies located above the master are called slave supplies. The five-slot models
have one master and either three (4450) or four (4450R) slave power supplies.
If adding new modules to a unit, ensure that the power supplies are properly
configured by following these procedures.
!
For Units 4400 with Standard
Containing... Power Supply
1-3 Modules includ- Unplug top power supply
ing the base module (slave)
4-5 Modules includ- Plug in all four power
ing the base module supplies (master + 3
slaves)
Table 10-2. Passport 4400 jumper 12 strapping for ac units
Passport 4400 model and
configuration
5-slot standard, ac, 1 to 3 modules
5-slot standard, ac, 4 to 5 modules
5-slot redundant, ac, 1 to 3 modules
5-slot redundant, ac, 4 to 5 modules
Table 10-3. Passport 4400 jumper 12 strapping for dc units
Passport 4400 model and
configuration
5-slot standard, dc, 1 to 3 modules
5-slot standard, dc, 4 to 5 modules
5-slot redundant, dc, 1 to 3 modules
5-slot redundant, dc, 4 to 5 modules
only (models 4450, 4450R). Three-slot units (model 4430) do not
need to be configured.
Disconnect all power from the unit before performing these
Caution:
procedures.
Table 10-1. Configuring the Power Supplies
4400 with Redundant
Power Supply
Unplug the top two pow-
er supplies (slaves)
Plug in all five power
supplies (master + 4
slaves)
Passport 4400 Hardware Installation Manual
ac Units...
position
jumper J12
according to
Table 10-2
Jumper Positions (J-12)
1 2 3 4 5 6
X X X X
X X X X
X X X X X
X X X X X
Jumper Positions (J-12)
1 2 3 4 5 6
X X X
X X X
X X X X
X X X X
dc Units...
position
jumper J12
according to
Table 10-3
7 8
X X
X
X X
7 8
X X
X
X X
10-5