Enterasys Networks SecureStack C2RPS-CHAS2 - Manual (Page 20)

RPS Deployment Strategies
1-4 Introduction
RPS Deployment Strategies
The RPS can be deployed in a variety of situations with mission‐critical applications.
For example:
• For use in a voice and data network where switches are connected to IP phones and
PCs. Connecting an RPS to the switches can prevent voice network failures caused by
switch power failures.
• For use in traditional data 10/100/1000 Ethernet switches carrying mission‐critical
data.
Figure 1‐6 shows an example of the RPS providing redundant power backup for two
SecureStack C2 switches. If a SecureStack C2 switch device experiences an internal power‐
supply failure, the following occurs:
1. The internal DC‐power source of the switch device is immediately switched over
from the internal DC‐power supply to the RPS DC‐power input.
2. The switch device saves this status information for future retrieval, if necessary.
Figure 1-6 RPS Supporting Two SecureStack Switches
1 C2RPS-CHAS2 chassis (front view with two PSMs) 3 SecureStack C2 Ethernet switches
2 C2RPS-PSM Cables for 12 Vdc and status
information from PSMs
Note: The C2RPS-PSMs used in C2RPS-CHAS2 are interchangeable with those used in
the C2RPS-CHAS8 chassis available from Enterasys Networks.
CONSOLE
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CPU UP RPS MASTER
DOWN
C2G124-24
CONSOLE
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CPU UP RPS MASTER
DOWN
C2G124-24
C2RPS-CHAS2
C2RPS-PSM
Power
C2RPS-PSM
Power
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