Real-Time Clock - Cisco WS-C2950-24 Installation Manual
Hardware installation guide
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Also See for WS-C2950-24:
- Configuration manual (360 pages) ,
- Hardware installation manual (156 pages) ,
- Datasheet (19 pages)
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Hardware Features
Figure 1-22
Figure 1-23
Real-Time Clock
Upon system power up, the internal real-time clock with battery backup provides the system software
with the time of day. This allows the system to verify the validity of the certification authority (CA)
certificate. The Cisco 2900 and Cisco 3900 series routers have a lithium battery. This battery lasts for
the life time of the router under the operating environmental conditions specified for the router and is
not field-replaceable.
Note
If the lithium battery in a Cisco 2900 or Cisco 3900 series ISR should fail, the router must be returned
to Cisco for repair.
Although the battery is not intended to be field-replaceable, the following warning must be heeded:
Warning
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with
the same or equivalent type recommended by the manufacturer. Dispose of used batteries according
to the manufacturer's instructions. Statement 1015
Cisco 2900 Series and 3900 Series Hardware Installation Guide
1-26
Cisco 3900 Series (Non NEBS) Router Airflow
SY S
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Cisco 3900 Series NEBS Router Airflow
SY S
AC T
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AU X
PW R1
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Chapter 1
Overview of the Routers
OL-18712-02
- Quick Links:
- Cisco 2911 Chassis
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