Datasheet

Ordering Guide

The power supply SKUs in Table 2 below can be ordered with the system or as spares. The POE power supply on the

3900 Series ISRs requires a C15 rated power cable to accommodate the higher current rating of these power supplies.

Table 2. Cisco 3900 Series Router Power Supply Options (offered with the system and as spares)

Ordering SKU Description

PWR-3900-AC Cisco 3925-3945E AC Power Supply (Both system and spare)

PWR-3900-AC/2 Cisco 3925-3945E AC Power Supply (Secondary PS)—only as system

PWR-3900-POE Cisco 3925-3945E AC Power Supply with Power Over Ethernet (Both system and spare)

PWR-3900-POE/2 Cisco 3925-3945E AC Power Supply with Power Over Ethernet (Secondary PS)—only as system

PWR-3900-DC* Cisco 3925-3945E DC Power Supply (Both system and spare)

PWR-3900-DC/2* Cisco 3925-3945E DC Power Supply (Secondary PS)—only as system

CAB-C15-ACx AC Power Cord (country specific SKU), C15, (country-specific plug), (length)

* The DC versions of power supply will be available in 1H’CY10

The Cisco 3945E, 3925E, 3945 and 3925 ship with a default memory of 1 GB DRAM and 256 MB Compact Flash. The

1 GB DRAM configuration is derived by the installation of 2 symmetrical DIMMS of 512 MB in each of the memory slots

on the SPE of the Cisco 3900 Series platforms. While upgrading memory to higher densities, it is necessary that both

the memory slots are populated with DIMMS of symmetrical type and density for high system performance. The Cisco

3900 Series does not support the use of different DRAM densities in the two available DIMM slots or the use of only

one slot. The memory type and SKUs are shared between all 390 Series platforms as listed in Table 3.

Table 3. Cisco 3900 Series Routers DRAM (Factory Upgrades and Spares)

Ordering SKU Description

MEM-3900-1GU4GB 1GB to 4GB DRAM Upgrade (2GB+2GB) for Cisco 3925/3945 ISR

MEM-3900-1GB-DEF 1GB DRAM (512MB+512MB) for Cisco 3925-3945E ISR (Default)

MEM-3900-1GU2GB 1GB to 2GB DRAM Upgrade (1GB+1GB) for Cisco 3925-3945E ISR

MEM-3900-512MB= 512MB DRAM for Cisco 3925-3945E ISR (only as spare)

MEM-3900-1GB= 1GB DRAM for Cisco 3925-3945E ISR (only as spare)

The compact flash SKUs in Table 4 below are shared across all the routers in the Integrated Services Routers

Generation 2 portfolio. Compact Flash Slot 0 is populated with a 256 MB CF by default from the factory. There is an

additional Compact Flash Slot 1 that can be optionally configured and ordered with another compact flash of desired

density.

Table 4. Cisco 3900 Series Routers Compact Flash (Factory Upgrades and Spares)

Ordering SKU Description

MEM-CF-256U4GB 256MB to 4GB Compact Flash Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256U2GB 256MB to 2GB Compact Flash Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256U1GB 256MB to 1GB Compact Flash Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256U512MB 256MB to 512MB CF Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256MB 256MB Compact Flash for Cisco 1900, 2900, 3900 ISR (Default)

MEM-CF-4GB= 4GB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-2GB= 2GB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-1GB= 1GB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-512MB= 512MB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-256MB= 256MB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)