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The Cisco Unified Computing System™ is a next-generation data center platform that unites compute, network, storage access, and virtualization into a cohesive system designed to reduce total cost of ownership (TCO) and increase business agility. The
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Switch Cisco Catalyst 9300 Datasheet (2022).pdfSAM Romania
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3. ROUTER-SWITCH.COM 2
OVERVIEW
The Cisco 3900 Series builds on the best-in-class offering of the existing Cisco 3800 Series
Integrated Services Routers by now offering four platforms (Figure 1): the Cisco 3945E, Cisco
3925E, Cisco 3945, and Cisco 3925 Integrated Services Routers.
The Cisco 3900 Series offers embedded hardware encryption acceleration, voice- and video-
capable DSP slots, optional firewall, intrusion prevention, call processing, voicemail, and
application services. In addition, the platforms support the industry ’s widest range of wired and
wireless connectivity options such as T1/E1, T3/E3, xDSL, copper, and fiber Gigabit Ethernet.
The Cisco 3900 Series offers superior performance and flexibility for flexible network
deployments from small business offices to large enterprise offices - all while providing industry-
leading investment protection.
APPEARANCE
Figure 1. Cisco 3900 Integrated Services Router
4. ROUTER-SWITCH.COM 3
KEY FEATURES AND BENEFITS
Services integration
• The Cisco 3900 Series routers offer increased levels of services integration with voice, video,
security, mobility, and data services.
• The Cisco 3900 Series provides the highest performance and slot densities among the routers
in the Cisco ISR G2 portfolio, enabling you to maximize services integration and reducing overall
capital expenditures (CapEx) and operating expenses (OpEx).
Services on demand
• A single Cisco IOS Software Universal image is installed on each Cisco ISR G2. The Universal
image contains all of the Cisco IOS Software technology sets, which you can activate with a
software license. With the Universal image your business can quickly deploy advanced features
without downloading a new Cisco IOS Software image. Additionally, larger default memory is
included to support the new capabilities.
• The Cisco SRE enables a new operational model that allows you to reduce CapEx and deploy a
variety of application services as needed on a single integrated compute services module.
High performance with integrated services
• The Cisco 3900 Series enables deployment in high-speed WAN environments with concurrent
services enabled up to 350 Mbps.
• A multigigabit fabric (MGF) enables high-bandwidth module-to-module communication
without compromising router performance.
Network agility
• Designed to address customer business requirements, the Cisco 3900 Series with the modular
architecture offers increased capacity and performance as your network needs grow.
• The Cisco Services Performance Engine (SPE) modular motherboard enables upgrades to
processing capability in the future.
• Dual integrated power supplies provide power redundancy; you can also configure them to
provide additional Cisco ePoE power to endpoints.
• Modular interfaces offer increased bandwidth, a diversity of connection options, and network
resiliency.
5. ROUTER-SWITCH.COM 4
Energy efficiency
• The Cisco 3900 Series architecture provides energy-savings features that include the following:
◦ The Cisco 3900 Series offers intelligent power management and allows you to control power
to the modules based on the time of day. Cisco EnergyWise technology will be supported in the
future.
◦ Services integration and modularity on a single platform allows you to perform multiple
functions, optimizing consumption of raw materials and energy usage.
◦ Platform flexibility and ongoing development of both hardware and software capabilities
lead to a longer product lifecycle, lowering all aspects of the TCO - including materials and
energy use.
◦ High-efficiency power supplies and scalable power consumption are based on your network
needs.
Investment protection
• The Cisco 3900 Series maximizes investment protection by supporting:
◦ Reuse of a broad array of existing modules supported on the original Cisco Integrated
Services Routers to provide a lower TCO.
◦ A rich set of Cisco IOS Software features carried forward from the original Cisco Integrated
Services Routers and delivered in a single universal image.
• The Cisco 3900 Series offers extensive growth possibilities as your network expands:
◦ The SPE modular motherboard enables flexibility for future upgrades.
◦ The highest scale for module density provides flexibility to add services as your business
needs expand.
◦ A 1-Gb default memory provides headroom to minimize field upgrades.
6. ROUTER-SWITCH.COM 5
MODULARITY FEATURES AND BENEFITS
Architectural Features Benefits
Cisco Services Performance
Engine (SPE)
• The Cisco 3900 Series offers field-replaceable SPEs.
• These SPEs allow you to protect your initial investment in
the Cisco 3900 platform for a longer time period and scale
router performance as your network and branch-office
needs grow.
Cisco Services Module
• A service-module slot replaces the network module and
the extension module for voice and fax (EVM) slots and is
offered on Cisco 3900 Integrated Services Routers.
• Each service-module slot offers high data-throughput
capability:
◦ Up to 4-Gbps aggregate toward the router processor.
◦ Up to 2-Gbps aggregate to other module slots over the
MGF.
• Service-module slots are highly flexible, with support for
doublewide service modules, which are service modules
that require two service-module slots. Doublewide service
modules provide flexibility for higher-density modules.
• Service-module slots provide twice the power capabilities
relative to the network-module slots, allowing flexibility for
higher-scale and better-performance modules.
• An adapter module enables backward compatibility with
existing network modules, enhanced network modules
(NMEs), and EVMs.
• You can manage power to service-module slots by
extensions similar to the Cisco EnergyWise framework, so
your organization can reduce energy consumption in your
network infrastructure. Full Cisco EnergyWise support will
be available in future software releases.
Cisco Enhanced High Speed
WAN Interface Card (EHWIC)
• The EHWIC slot replaces the high-speed WAN interface
card (HWIC) slot and can natively support HWICs, WAN
interface cards (WICs), voice interface cards (VICs), and
voice/WAN interface cards (VWICs).
7. ROUTER-SWITCH.COM 6
• Three integrated EHWIC slots on the Cisco 3945E and
Cisco 3925E or four integrated EHWIC slots on the Cisco
3945 and Cisco 3925 allow for flexible configurations.
• Each HWIC slot offers high-data-throughput capability:
◦ Up to 1.6-Gbps aggregate toward the router processor.
◦ Up to 2-Gbps aggregate to other module slots over the
MGF.
• Flexibility to support doublewide modules is enabled by
combining two EHWIC slots. Up to 2 doublewide HWIC
(HWIC-D) modules are supported.
Cisco Internal Services
Module (ISM)
• A single ISM slot provides flexibility to integrate intelligent
services modules that do not require interface connections
in the Cisco 3945 and Cisco 3925.
• Each ISM slot offers high-data-throughput capability:
◦ Up to 4-Gbps aggregate toward the route processor.
◦ Up to 2-Gbps aggregate to other module slots over the
MGF.
• The ISM replaces the AIM slot; existing AIM modules are
not supported in the ISM slot.
• You can manage power to ISM slots by extensions similar
to the Cisco EnergyWise framework, so your organization
can reduce energy consumption in your network
infrastructure. Full Cisco EnergyWise support will be
available in future software releases.
Cisco High-Density Packet
Voice Digital Signal
Processor (DSP) Module
(PVDM3) Slots on
Motherboard
• PVDM3 slots natively support PVDM3 modules, providing
support for richer density for rich-media voice and video.
• Each PVDM3 slot connects back to the system
architecture through a 2-Gbps aggregate link through
the MGF.
• Investment protection for PVDM2 modules is supported
through an adapter module.
• You can manage power to the PVDM slots by extensions
similar to the Cisco EnergyWise framework, so your
organization can reduce energy consumption in your
8. ROUTER-SWITCH.COM 7
network infrastructure. Full Cisco EnergyWise support will
be available in future software releases.
Compact Flash Slots
• Two external Compact Flash slots are available on the
Cisco 3900 Series Integrated Services Routers. Each slot can
support high-speed storage densities upgradable to 4 GB
in density.
USB 2.0 Ports
• Two high-speed USB 2.0 ports are supported; they
provide secure token capabilities and storage.
CISCO 3900 INTEGRATED SERVICES ROUTER PRODUCT SPECIFICATIONS
Services and Slot
Density
Cisco 3945E Cisco 3925E Cisco 3945 Cisco 3925
Embedded
hardware-based
cryptography
acceleration (IPSec
+ Secure Sockets
Layer [SSL])
Yes Yes Yes Yes
Cisco Unified
Communications
Manager Express
Sessions
**
450 400 350 250
Cisco Unified SRST
sessions
1500 1350 1200 730
Total onboard WAN
or LAN
10/100/1000 ports
4 4 3 3
RJ-45-based ports 4 4 3 3
SFP-based ports 2 2 2 2
Service-module
slots
4 2 4 2
Doublewide
service-module
slots
1 1 1 1
EHWIC slots 3 3 4 4
9. ROUTER-SWITCH.COM 8
Doublewide EHWIC
slots
1 1 2 2
ISM slots 0 0 1 1
Online insertion
and removal (OIR)
Services
modules
Services
modules
Services
modules
Services
modules
Onboard DSP
(PVDM) slots
3 3 4 4
Memory DDR2 ECC
DRAM: Default
1 GB 1 GB 1 GB 1 GB
Memory DDR2 ECC
DRAM: Maximum
2 GB 2 GB 2 GB
***
2 GB
***
Compact Flash
(external): Default
Slot 0: 256
MB
Slot 1: None
Slot 0: 256
MB
Slot 1: None
Slot 0: 256
MB
Slot 1: None
Slot 0: 256 MB
Slot 1: None
Compact Flash
(external):
Maximum
Slot 0: 4 GB
Slot 1: 4 GB
Slot 0: 4 GB
Slot 1: 4 GB
Slot 0: 4 GB
Slot 1: 4 GB
Slot 0: 4 GB
Slot 1: 4 GB
External USB 2.0
slots (Type A)
2 2 2 2
USB console port
(Type B) (up to
115.2 kbps)
1 1 1 1
Serial console port
(up to 115.2 kbps)
1 1 1 1
Serial auxiliary port
(up to 115.2 kbps)
1 1 1 1
Power-supply
options
Internal: AC,
PoE, and DC
*
Internal: AC,
PoE, and DC
*
Internal: AC,
PoE, and DC
*
Internal: AC,
PoE, and DC
*
Redundant power
supply
Internal: AC,
PoE, and DC
*
Internal: AC,
PoE, and DC
*
Internal: AC,
PoE, and DC
*
Internal: AC,
PoE, and DC
*
Power Specifications
AC input voltage
100 to 240
VAC
autoranging
100 to 240
VAC
autoranging
100 to 240
VAC
autoranging
100 to 240 VAC
autoranging
AC input frequency 47 to 63 Hz 47 to 63 Hz 47 to 63 Hz 47 to 63 Hz
AC input current
range, AC power
supply (maximum)
7.1 to 3.0A 7.1 to 3.0A 7.1 to 3.0A 7.1 to 3.0A
AC input surge
current
<50A <50A <50A <50A
10. ROUTER-SWITCH.COM 9
DC Operating Input
Voltage
24Vdc -
60Vdc
24Vdc -
60Vdc
24Vdc -
60Vdc
24Vdc - 60Vdc
Max Input Current
range, DC power
supply (A)
33.2 - 12.4 33.2 - 12.4 33.2 - 12.4 33.2 - 12.4
DC Input Surge
Current
<50A <50A <50A <50A
Typical power (no
modules) (watts)
158 150 105 100
Maximum power
with AC power
supply (watts)
540 420 540 420
Maximum power
with PoE power
supply (platform
only) (watts)
540 420 540 420
Maximum endpoint
PoE power available
from PoE power
supply (watts)
520 520 520 520
Max power with DC
input (W)
574 446 574 446
Maximum endpoint
PoE power capacity
with PoE boost
(watts)
1040 1040 1040 1040
Dimensions (H x W
x D)
5.25 x 17.25
x 18.75 in.
(133.35 x
438.15 x
476.25 mm)
5.25 x 17.25
x 18.75 in.
(133.35 x
438.15 x
476.25 mm)
5.25 x 17.25
x 18.75 in.
(133.35 x
438.15 x
476.25 mm)
5.25 x 17.25 x
18.75 in.
(133.35 x 438.15
x 476.25 mm)
Rack height
3 rack units
(3RU)
3RU 3 RU 3RU
Rack-mount 19in.
(48.3 cm) EIA
Included Included Included Included
Rack-mount 23in.
(58.4 cm) EIA
Optional Optional Optional Optional
Wall-mount No No No No
Weight with AC
power supply (no
modules)
39 lb (17.7
kg)
39 lb (17.7
kg)
39 lb (17.7
kg)
39 lb (17.7 kg)
11. ROUTER-SWITCH.COM 10
Weight with PoE
power supply (no
modules)
40 lb (18.1
kg)
40 lb (18.1
kg)
40 lb (18.1
kg)
40 lb (18.1 kg)
Typical weight (with
modules)
60 lb (27.2
kg)
60 lb (27.2
kg)
60 lb (27.2
kg)
60 lb (27.2 kg)
Airflow
Back and
sides to
front
Back and
sides to
front
Back and
sides to
front
Back and sides
to front
Optional airflow kit
(includes filter)
None None Front to
back and
sides
Front to back
and sides
Environmental specifications
Operating conditions
Temperature: 5906
ft (1800m)
maximum altitude
32 to 104ºF
(0 to 40ºC)
32 to 104ºF
(0 to 40ºC)
32 to 104ºF
(0 to 40ºC)
32 to 104ºF
(0 to 40ºC)
Temperature: 9843
ft (3000m)
maximum altitude
32 to 104ºF
(0 to 40ºC)
32 to 104ºF
(0 to 40ºC)
32 to 104ºF
(0 to 40ºC)
32 to
104ºF (0
to 40ºC)
Temperature:
13123 ft (4000m)
maximum
altitude ’
32 to 86ºF
(0 to 30ºC)
32 to 86ºF
(0 to 30ºC)
32 to 86ºF
(0 to 30ºC)
32 to 86ºF
(0 to 30ºC)
Temperature:
Short-term per
NEBS/5906 ft
(1800m) maximum
altitude
23 to 122°F
(-5 to 50°C)
23 to 122°F
(-5 to 50°C)
23 to 122°F
(-5 to 50°C)
23 to 122°F
(-5 to 50°C)
Altitude
4,000m
(13,000 ft)
4,000m
(13,000 ft)
4,000m
(13,000 ft)
4,000m (13,000
ft)
Relative humidity 5 to 85% 5 to 85% 5 to 85% 5 to 85%
Short-term (per
NEBS) humidity
5% to 90%,
not to
exceed
0.024 kg
water/kg of
dry air
5% to 90%,
not to
exceed
0.024 kg
water/kg of
dry air
5% to 90%,
not to
exceed
0.024 kg
water/kg of
dry air
5% to 90%, not to
exceed 0.024 kg
water/kg of dry
air
Acoustic: Sound
pressure
(typical/maximum)
57.6/77.6 57.6/77.6 57.6/77.6 57.6/77.6
12. ROUTER-SWITCH.COM 11
Acoustic: Sound
power
(typical/maximum)
67.8/84.7 67.8/84.7 67.8/84.7 67.8/84.7
Nonoperating
conditions
2
Temperature
-40 to 158ºF
(-40 to
70ºC)
-40 to 158ºF
(-40 to
70ºC)
-40 to 158ºF
(-40 to
70ºC)
-40 to 158ºF
(-40 to 70ºC)
Relative humidity 5 to 95% 5 to 95% 5 to 95% 5 to 95%
Altitude
15,584 ft
(4750m)
15,584 ft
(4570m)
15,584 ft
(4750m)
15,584 ft
(4570m)
Regulatory and Compliance
Safety
UL 60950-1
CAN/CSA
C22.2 No.
60950-1
EN 60950-1
AS/NZS
60950-1
IEC 60950-1
UL 60950-1
CAN/CSA
C22.2 No.
60950-1
EN 60950-1
AS/NZS
60950-1
IEC 60950-1
UL 60950-1
CAN/CSA
C22.2 No.
60950-1
EN 60950-1
AS/NZS
60950-1
IEC 60950-1
UL 60950-1
CAN/CSA C22.2
No. 60950-1
EN 60950-1
AS/NZS 60950-1
IEC 60950-1
EMC
47 CFR, Part
15
ICES-003
Class A
EN55022
Class A
CISPR22
Class A
AS/NZS
3548 Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000
(Immunity)
EN 55024,
CISPR 24
EN50082-1
47 CFR, Part
15
ICES-003
Class A
EN55022
Class A
CISPR22
Class A
AS/NZS
3548 Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000
(Immunity)
EN 55024,
CISPR 24
EN50082-1
47 CFR, Part
15
ICES-003
Class A
EN55022
Class A
CISPR22
Class A
AS/NZS
3548 Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000
(Immunity)
EN 55024,
CISPR 24
EN50082-1
47 CFR, Part 15
ICES-003 Class A
EN55022 Class A
CISPR22 Class A
AS/NZS 3548
Class A
VCCI V-3
CNS 13438
EN 300-386
EN 61000
(Immunity)
EN 55024, CISPR
24
EN50082-1
Telecom
TIA/EIA/IS-
968
CS-03
TIA/EIA/IS-
968
CS-03
TIA/EIA/IS-
968
CS-03
TIA/EIA/IS-968
CS-03
ANSI T1.101
13. ROUTER-SWITCH.COM 12
ANSI T1.101
ITU-T G.823,
G.824
IEEE 802.3
RTTE
Directive
ANSI T1.101
ITU-T G.823,
G.824
IEEE 802.3
RTTE
Directive
ANSI T1.101
ITU-T G.823,
G.824
IEEE 802.3
RTTE
Directive
ITU-T G.823,
G.824
IEEE 802.3
RTTE Directive
CISCO 3900 SERIES BASIC ORDERING INFORMATION
Product Name Product Description
CISCO3945E/K9 • Cisco 3945 with 4 onboard GE, C3900-SPE250/K9, 3 EHWIC slots, 3 DSP
slots, 4 SM slots, 256MB CF default, 1 GB DRAM default, IP Base
CISCO3925E/K9 • Cisco 3925 with 4 onboard GE, C3900-SPE200/K9, 3 EHWIC slots, 3DSP
slots, 2 SM slots, 256MB CF default, 1 GB DRAM default, IP Base
CISCO3945/K9 • Cisco 3945 with 3 onboard GE, C3900-SPE150/K9, 4 EHWIC slots, 4 DSP
slots, 1 ISM slot, 4 SM slots, 256MB CF default, 1 GB DRAM default, IP
Base
CISCO3925/K9 • Cisco 3925 with 3 onboard GE, C3900-SPE100/K9, 4 EHWIC slots, 4 DSP
slots, 1 ISM slot, 2 SM slots, 256MB CF default, 1 GB DRAM default, IP
Base
SOURCES
https://www.cisco.com/c/en/us/products/collateral/routers/3900-series-integrated-services-
routers-isr/data_sheet_c78_553924.html