User's Manual

Table Of Contents
VOLUME III, CHAPTER 3, INU AND INUE INSTALLATION
INUe Loading Rules for Operation up to 55ºC (131ºF)
The following loading rules must be followed when dimensioning the total power con-
sumption of an INUe that is required to operate in ambient temperatures up to 55ºC
(131ºF):
l If the total power consumption of all cards installed exceeds 85 watts, an NPC
must be fitted, a 2RU FAN card must be fitted, and 5.04 or later SW loaded.
l With this configuration confirmed (NPC + 2RU FAN + 5.04 SW or later) the
maximum INUe loading enabled is 125 watts. The one exception/condition is
that the combined installed total of DAC GE3 cards must not exceed four.
l If an earlier version of SW is loaded, the maximum INUe loading allowed is 85
watts. This rule applies even if an NPC and 2RU FAN is fitted.
CAUTION:55ºC (131ºF) operation does not apply to the PCC. Oper-
ational ambient temperatures with a PCC installed must not exceed
45
0
C (113
0
F).
INUe Loading Rules for Operation at 45ºC (113ºF)
The following loading rules must be followed when dimensioning the total power con-
sumption of an INUe that is operating in ambient temperatures that do not exceed
4C (113ºF):
l If the total power consumption of all cards installed exceeds 85 watts, an NPC
must be fitted, a 2RU FAN card must be fitted, and 5.04 or later SW loaded.
l With this configuration confirmed (NPC + 2RU FAN + 5.04 SW or later) the
maximum INUe loading enabled is 150 watts. The exceptions/conditions to
this rule are:
o
INUe loading is limited to 140 watts if the installed total of DAC GE3 cards
exceeds two.
o
The combined installed total of DAC GE3 cards must not exceed four.
l If an earlier version of SW is loaded, the maximum INUe loading allowed is
105 watts. This rule applies even if an NPC and 2RU FAN is fitted.
Table 3-4. Example Compliant INUe Configurations (5.04 SW or later)
Configuration Total Card
Consumption
Ambient
Max Temp
Max Power
Con-
sumption
NCC, NPC, 6xRAC 60E, 2xDAC GE3, AUX 120W +55 ºC 125W
NCC, NPC, 6xRAC 6XE, 2xDAC GE3, AUX 150W +45 ºC 150W
NCC, NPC, 6xRAC 60E, 2xDAC GE3, DAC 155oM 124W +55 ºC 125W
NCC, NPC, 4xRAC 6XE, 2xDAC GE3, 2xDAC 16x, AUX 121W +55 ºC 125W
INU (1RU) Loading Rules
The INU (1RU) chassis should not be loaded above the follow limits:
l 65 watts total for operation up to 4C
l 50 watts total for operation up to 55ºC
No improvements are introduced for the INU with 5.04 SW due to its use of smaller,
lower volume cooling fans.
64 AVIAT NETWORKS