Datasheet

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Page 17 of 28
INTEGRATED INLINE POWER
Q. What are the part numbers for the internal and external power supplies and shelves?
A. Table 13 provides power supply and shelf part numbers.
Table 13. Power Supply Part Numbers
Part Number Description
PPWR-PS-360W One 48V (360W) power supply for Cisco EtherSwitch modules
PWR-3825-AC-IP Cisco 3825 system AC + 48V IP phone power supply
PWR-3845-AC-IP Cisco 3845 system AC + 48V IP phone power supply
PWR675-AC-RPS-N1= Cisco 675W RPS with one connector cable
CAB-RPS-1614= One Cisco RPS 675 connector cable 16/14
PPWR-PS-CHASSIS One power supply chassis for Cisco 48V (360W) power supply
PWR-CHASSIS-360W One power supply chassis and 48V power supply for Cisco EtherSwitch module
CAB-PPWR-PS1-1 Connects one Cisco EtherSwitch power supply to one Cisco EtherSwitch module
CAB-PPWR-PS1-2 Connects one Cisco EtherSwitch power supply to two Cisco EtherSwitch modules
CAB-PPWR-PS2-1 Connects two Cisco EtherSwitch power supplies to one Cisco EtherSwitch module
Q. What are the differences between inline power on the Cisco 3700 and 3800 series?
A. On the Cisco 3700 Series, the integrated inline power supply is a field-replaceable part that is separate from the system power. The Cisco 3700
Series supports the proprietary Cisco inline power scheme, which is not 802.3af-compliant. The Cisco 3800 Series has a common power supply for
both inline phone power and system power. The AC-IP power supplies support either Cisco or 802.3af inline power, depending on the support of
modules. Currently, only Cisco EtherSwitch HWICs support 802.3af.
Q. Can Cisco 3800 Series systems support inline power to both a Cisco EtherSwitch HWIC and a Cisco EtherSwitch network module in the same
chassis?
A. Yes. The Cisco 3800 Series can provide inline power to both a Cisco EtherSwitch HWIC and a Cisco EtherSwitch network module in the same
chassis. However, this can only be done through the Cisco proprietary power scheme. 802.3af-compliant mode cannot be operated when there is a
mix of Cisco EtherSwitch HWICs and Cisco EtherSwitch network modules.
Q. Do the Cisco 3825 and 3845 routers have the same IP phone power supply?
A. No. The Cisco 3825 and 3845 router IP phone power supplies are different, and are not interchangeable.
Q. Is the 360W Cisco EtherSwitch power supply supported on Cisco 3800 Series routers?
A. The 360W Cisco EtherSwitch power supply is not supported internally on the Cisco 3800 Series—the IP power supply is integrated with the
AC power supply. The 360W Cisco EtherSwitch power supply can still be connected externally to 16-port or 36-port Cisco EtherSwitch modules
through the external IP phone power connectors on the modules.
Q. What inline power redundancy options are present in the Cisco 3825 router?
A. Since the Cisco 3825 router only supports one inline power supply, an external power supply is needed for redundancy. The external power
supply can be either the Cisco RPS 675, or the external redundant inline power supply, the PWR-CHASSIS-360W, that contains a 360W power
supply and one of the power supply cables offered with the Cisco EtherSwitch module. The Cisco RPS 675 supplies redundant system power as well
as redundant inline power for Ethernet.