Cisco 3700 series Manuale di installazione - Pagina 9
Sfoglia online o scarica il pdf Manuale di installazione per Hardware di rete Cisco 3700 series. Cisco 3700 series 12. Siemens hipath 4000 release 1 and siemens hicom 330e release 3.1 to cisco ios voice gateway using e1 qsig with h.323
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Chapter 1
Overview of Cisco 3700 Series Routers
Power Supply Options
Table 1-3
configuration specified when you placed your order, your router may not support all of these options.
Table 1-3
Power Supply Option
AC input power
DC input power
–48-V telephony power module to provide inline power to IP phones
Dual hot-swappable power supplies
Compatible with Cisco Redundant Power System
1. Because of increased power consumption in high-temperature environments, a fully loaded Cisco 3745 router requires both
Internal –48 V Telephony Power Modules
Cisco 3700 series routers provide inline power to IP phones connected to the router through Ethernet
switch network modules. This power is supplied by special –48 V modules that connect directly to the
chassis power supplies in Cisco 3725 and Cisco 3745 routers. A single –48 V power module meets the
power needs of up to 36 IP phones. A Cisco 3745 router with two –48 V power modules installed
provides redundant power for up to 36 IP phones.
modules as they appear when installed in Cisco 3700 series routers.
OL-2180-08
lists the power supply options supported by Cisco 3700 series routers. Depending on the
Power Supply Options for Cisco 3700 Series Routers
power supplies when ambient temperature exceeds 104˚F (40˚C). Cisco 3745 routers operating under these conditions do not
support the online replacement of power supplies.
Figure 1-5
and
Figure 1-6
Cisco 3700 Series Routers Hardware Installation Guide
Power Supply Options
Cisco 3725
Cisco 3745
Yes
Yes
Yes
Yes
Yes
Yes
1
No
Yes
Yes
Yes
show the –48 -V power
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