It's all known that Cisco 1921 builds on the best-in-class. All Cisco 1900 Series Integrated Services Routers offer embedded hardware encryption acceleration, and advanced security services. In addition, the platforms support the industry's widest range of wired and wireless connectivity options such as Serial, T1/E1, xDSL, Gigabit Ethernet, and third-generation (3G) wireless. Now, let’s share Cisco 1921 full and simple tutorial in diagram form.
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| Cisco 1921/K9 router features |
LED area description:
· SYS: Solid green ---normal operation.
Blinking green ---System is booting or is in ROM monitor mode.
Amber ---System error.
Off ---Power is off or system board is faulty.
· ACT: Solid or blinking ---any packets are transmitted/received on any WAN/LAN, or when monitoring system activity.
· PoE: Green ---PoE is available.
Amber ---Power supply is not supplying PoE power.
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| Cisco 1921/K9 back overview |
S (Speed): 1 blink + pause ---GE port operating at 10 Mb/s.
2 blink + pause ---GE port operating at 100 Mb/s.
3 blink + pause ---GE port operating at 1000 Mb/s.
· L (Link): Green ---GE link is established.
Off ---No GE link is established.
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| Cisco 1921/K9 back diagram |
Note:
· 1 integrated EHWIC slots for flexible configurations & support of two modules:
1 double wide HWIC-D or single wide EHWIC/HWIC module;
or 2 single wide EHWIC/HWIC module .
(Each HWIC Slot offers high data throughput capability with up to 1.6 Gbps aggregate towards the router processor and up to 2 Gbps aggregate to other module slots over MultiGigabit Fabric (MGF)).
· 1 AUX port (auxiliary port) ---RJ-45 connectors for Remote configuration.
· GE 0/0 & 0/1---Two Gigabit Ethernet ports (RJ-45 connectors).
· High-speed USB 2.0 ports enable another mechanism secure token capabilities and storage.
Cisco 1921-SEC-K9 overview:
(The back ports overview for Cisco 1921-SEC/K9 is the same with Cisco 1921/K9, thus, we won't list them again)
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| Cisco 1921-SEC/K9 features and functions |
Cisco 1921/K9 & Cisco 1921-SEC/K9 router Specs:
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Cisco 1921 Integrated Services Router
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Services and Slot Density
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Embedded hardware-based cryptography acceleration
(IPsec + SSL)
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Yes
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RJ-45 onboard LAN 10/100/1000 ports
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2
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EHWIC slots
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2
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Doublewide EHWIC slots (use of a doublewide EHWIC slot
will consume 2 EHWIC slots)
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1
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Cisco Integrated Services Module (ISM) slots
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0
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Memory (DDR2 DRAM): Default/Maximum
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512 MB/512 MB
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USB flash memory (internal): Default/maximum
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256 MB/256 MB
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External USB flash-memory slots (Type A)
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1
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USB console port (mini-Type B) (up to 115.2 kbps)
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1
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Serial console port (up to 115.2 kbps)
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1
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Serial auxiliary port (up to 115.2 kbps
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1
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Integrated power supply
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AC
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Power-supply options
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POE (external)
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Redundant-power-supply support
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No
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Power Specifications
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AC input voltage
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100--240V ~
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AC input frequency
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47--63 Hz
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AC input current range AC power supply (maximum) (amps)
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1.5--0.6
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AC input surge current
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<50A
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Typical power (no modules)
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25W
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Maximum power capacity with AC power supply
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60W
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Maximum power capacity with PoE power supply (platform
only)
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70W
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Maximum PoE device power capacity with PoE power supply
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80W
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