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2015年4月6日星期一

Cisco GLC-LH-SM SFP Module Price - USD225.00

Cisco GLC-LH-SM is compatible with the IEEE 802.3z 1000BASE-LX standard, operates on standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on any multimode fibers. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable.

GLC-LH-SM SFP Port Cabling Specifications

Product	Wavelength (nm)	Fiber Type	Core Size (μm)	Modal Bandwidth (MHz* Km)**	Operating Distance (m)	Price
GLC-LH-SM	1310	MMF*	62.5	500	550 (1,804 ft)	USD225.00
			50	400	550 (1,804 ft)
			50	500	550 (1,804 ft)
		SMF	-**	-	10,000 (32,821 ft)

*A mode-conditioning patch cord, as specified by the IEEE standard, is required regardless of the span length. Note how the mode conditioning patch cord for 62.5-μm fibers has a different specification from the mode-conditioning patch cord for 50-μm fibers.

**Specified at transmission wavelength.

GLC-LH-SM Main Optical Parameters

Product	Transmit Power Range (dBm)	Receive Power Range (dBm)	Maximum Channel insertion loss in dB (by fiber type)*	Transmit and Receive Wavelength Range (nm)
GLC-LH-SM	-3 to -9.5	-3 to -20	2.4 (any MMF) 6 (G.652 SMF)	1270 to 1355

*Maximum channel insertion loss is defined for maximum distance guaranteed as specified in Table 1 and by fiber type. When links are deployed over shorter distances, additional channel insertion loss may be allowed.

Although Cisco GLC-LH-SM is end of sales in Mar 2013, but still as one of the leading Cisco products wholesalers 3Anetwork.com has many GLC-LH-SM in stock, customers can consider GLC-LH-SM or its replacement GLC-LH-SMD, compare to GLC-LH-SM, GLC-LH-SMD has DOM function.

More related topics

Cisco 10GBASE SFP Modules

Cisco SFP Optics Specifications

SFP transceivers for Cisco switch

The Differences of XFP, SFP and SFP+

2015年3月31日星期二

Cisco 2900 Series Routers IOS Software Licensing and Packaging

Cisco 2900 Series Integrated Services Routers deliver innovative technologies
running on industry-leading Cisco IOS Software. Developed for wide deployment in the world's most demanding enterprise,access, and service provider networks,
the Integrated Services Routers Generation 2 platforms are supported on Cisco
IOS Software releases 15M&T. Release 15.0(1)M is available immediately and

provides support for a comprehensive portfolio of Cisco technologies, including
the functionality and features delivered in releases 12.4 and 12.4T. New
innovations in 15.0(1)M span multiple technology areas, including security,

voice, high availability, IP Routing and Multicast, quality of service (QoS),
IP Mobility, Multiprotocol Label Switching (MPLS), VPNs, and embedded management.

Cisco IOS Software Licensing and Packaging

A single Cisco IOS Universal image encompassing all IOS technology feature sets
is delivered with the platforms. You can enable advanced features by activating
a software license on the Universal image. In previous generations of access

routers, these feature sets required you to download a new software image.

Technology packages and feature licenses, enabled through the Cisco software
licensing infrastructure, simplify software delivery and decrease the
operational costs of deploying new features.

Four major technology licenses are available on the Cisco 2900 Series Integrated
Services Routers; you can activate the licenses through the Cisco software.

Thefour licenses are as follows:

● IP Base: This technology package is available as default.

● Data

● Unified Communications

● Security (SEC) or Security with No Payload Encryption (SEC-NPE)

The Cisco license provide greater flexibility to deploy new features while also
improving visibility and management of existing licenses in the network.
The Cisco ISR 1900, 2900 and 3900 Series adopt the Universal IOS image model

enabling customers to future proof their networks. Cisco 3925E and Cisco

3945E ISR running Cisco IOS Release 15.1(1)T. 3Anetwork.com keeps regular stock
of Cisco 1900/2900/3900 Series routers licenses and with big discount.

2015年3月26日星期四

The Difference between Cisco WS-C3750X-48T-L, WS-C3750X-48T-S and WS-C3750X-48T-E

The Cisco 3750-X Switches are enterprise-class lines of stackable switches.
These switches provide high availability, scalability, security, energy
efficiency, and ease of operation with innovative features such as
Cisco StackPower, IEEE 802.3at Power over Ethernet Plus (PoE+)

configurations, optional network modules, redundant power supplies,
and Media Access Control Security (MACsec) features.

What is the difference between WS-C3750X-48T-L and WS-C3750X-48T-S and

WS-C3750X-48T-E? We’ll list the differences as following.

The three models are sharing same hardware architecture, the difference
is the software, WS-C3750X-48T-L comes with LAN Base feature set,
WS-C3750X-48T-S with IP Base, WS-C3750X-48T-E with IP Services,

WS-C3750X-48T-L can be upgraded to WS-C3750X-48T-S or WS-C3750X-48T-E
via software license. For detailed difference in software, refer to below table:

As a world leading Cisco networking products supplier, 3Anetwork have Cisco

WS-C3750X-48T-L and WS-C3750X-48T-S and WS-C3750X-48T-E switches,

if you’d like to see the benefits of Cisco products for yourself,
you can log into www.3anetwork.com, or you can contact our sales info@3anetwork.com
to get more information on Cisco Networks solutions.