7750 SR-a Chassis Components
44 7750 SR-a4 and SR-a8 Installation Guide
The 7750 SR-a chassis support three types of impedance panels. The 7750 SR-a4 and
7750 SR-a8 chassis use the same three types of impedance panels. Impedance panels are
ordered separately, as described in Table 10.
Figure 13 shows the impedance panels that are used in the 7750 SR-a chassis.
Figure 13: 7750 SR-a Impedance Panels
Component Operating Requirements
Table 11 lists the 7750 SR-a4 hardware component operating requirements.
Table 10: Impedance Panels
Part Number Product Description
3HE09417AA ACC - 7750 SR-a CPM/MDA
Impedance Panel
One panel covers a one-half chassis slot.
Intended only for an individual MDA-a or CPM-
a slot.
3HE09418AA ACC - 7750 SR-a IOM Impedance Panel One panel covers one chassis slot. Intended only
for an individual IOM-a slot.
3HE09419AA ACC - 7750 SR-a PSU Impedance Panel One panel covers a one-quarter chassis slot.
Intended only for an individual PSU slot.
Table 11: 7750 SR-a4 Hardware Component Operating Requirements Summary
Component Minimum Maximum Field Replaceable
Backplane (factory installed) 1 1 N
AC or DC PSU 1 4 Y
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