Tellabs 8820 MSR, System Installation

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PN 76.8820IM30-A Tellabs 8820 Multi-service Switch Router System Installation
3-6
Equipment Overview 8820 MSR Chassis
Rear Panel
Figure 3-4 8820 MSR AC Connector Panel
8820 MSR DC Model Power Panel
The DC connectors (A and B), switches, and ground stud are located at the rear of the 8820
MSR DC chassis
(Figure 3-5)
.
Figure 3-5 8820 MSR DC Connector Panel
The 8820 MSR accommodates redundant power feeds. The unit can operate on only one
feed that meets the minimum requirements as presented in
Table 2-6
. If the unit is installed
in a redundant power application, both feeds must be connected and compliant with the
minimum requirements. Power circuit breakers and earth ground connections are
presented in
Table 2-7
.
RTN GND -48V DC
INPUT:
40 - 56.7 V
10.5 A
A B A B
FOR CENTRALIZED DC
POWER CONNECTION.
RESTRICTED ACCESS AREA.
INSTALL ONLY IN A
ON ON 0FF
0 0
0FF
-48VDC A
-48VDC B
Switch A
Switch B
Chassis
GND
Stud