Cisco 1548 Series — Micro Switches 10/100

Product Overview

The Cisco 1548 Series Micro Switches are affordable autosensing 10/100 Fast Ethernet switches for creating high-performance LANs in enterprise remote branch offices or in small, growing businesses. For customers whose bandwidth requirements have outgrown their legacy 10BaseT networks, the eight-port Cisco 1548M and Cisco 1548U switches offer dedicated 10/100 autosensing Fast Ethernet connections, ideal for aggregating workgroups or connecting Ethernet and Fast Ethernet desktops.

Figure 20-26: Cisco 1548 Series Micro Switch 10/100 Front View

Figure 20-27: Cisco 1548M Micro Switch 10/100 Rear View

Key Features and Benefits

The Cisco 1548 Series Micro Switches 10/100 provide dedicated 10/100 autosensing Fast Ethernet solutions for creating high-performance LANs at an affordable price.

Provides dedicated 10/100 autosensing LAN connectivity; ideal for price-sensitive customers looking for an ultra-low cost Fast Ethernet solution
Provides unmatched flexibility, ease-of-deployment and -use via features such as integrated stacking interconnections, auto-negotiation, easy stackability and auto-configuration/BootP
Allows easy management and reduces total cost of ownership via SNMP, RMON (4 groups), embedded HTTP server, CDP and "multifunction per port" LEDs for status
Offers an outstanding value at an ultra-low cost
Member of the Cisco Networked Office family of stackable products designed to provide complete solutions for small businesses and remote branch offices

Specifications

Hardware

**Table 20-175: Technical Specifications for Cisco 1548 Series**
Description	Specification
Ports/Connector Types	Eight workstation connectors: RJ-45 MDI-X shielded connectors Media supported: Category 5 UTP or Category 3 UTP (10BaseT only)
Performance	4 MB shared memory architecture shared by all ports Packet forwarding rate for 64-byte packets: 14,880 packets per second (pps) to 10 Mbps ports 148,800 pps to 100BaseT ports 4096 Media Access Control (MAC) addresses per system (Cisco1548M) 2048 Media Access Control (MAC) addresses per system (Cisco1548U-DS)
Management (Cisco 1548M model only)	SNMP Management Information Base (MIB) II, Bridge MIB, Ethernet MIB Min-RMON MIB (4 Groups - Statistics, History, Alarm, and Event) Cisco Discovery Protocol (CDP) supported
Indicator Panel LED Display	PWR: Indicates whether power is being supplied to switch Ports 1 to 8: Port status including link, activity, speed and full-/half-duplex operation
Connectors and Cabling	10BaseT ports: RJ-45 connectors; two-pair category 3, 4, or 5 unshielded twisted-pair (UTP) cabling 100BaseTX ports: RJ-45 connectors; two-pair Category 5 UTP cabling Management console port: RJ-45 connector (Cisco 1548M model only)
Shipping Contents	Cisco 1548U-DS or Cisco 1548M Micro Switch 10/100 U.S. power cord Stacking clip and accessories Management console cable (Cisco 1548M only) Product documentation Cisco ConfigMaker software (Cisco 1548M only)
Y2K	Y2K compliant
Warranty	Limited lifetime warranty covers product`s return to factory for free repair. Power supply and fan covered for first five years of product ownership.

**Table 20-176: Power Requirements for Cisco 1548 Series**
Description	Specification
Power consumption	Nominal 20W
AC input voltage	100 to 127 VAC, 200 to 240 VAC

**Table 20-177: Physical and Environmental Specifications for Cisco 1548 Series**
Description	Specification
Operating temperature	32 to 104°F (0 to 40°C)
Operating humidity	10 to 85% noncondensing
Operating altitude	up to 9840 ft (3000 m)
Storage temperature	-40 to 149°F (-25 to 65°C)
Storage altitude	30,000 ft (9146 m)

**Table 20-178: Regulatory Approvals for Cisco 1548 Series**
Description	Specification
Standards conformance	IEEE 802.3 10BaseT IEEE 802.3u 100BaseTX IEEE 802.3x Full Duplex on 10BaseT and 100BaseTX ports IEEE 802.1d Spanning-Tree Protocol
Safety Specifications	UL 1950/CSA 22.2 No. 950 IEC 950/EN 60950
Electromagnetic Emissions Compliance	FCC Part 15 Class B EN 55022B Class B (CISPR22 Class B) VCCI Class B AS/NRZ 3548 Class B BCIQ Class B CE

Software

For detailed software information, access Cisco Connection Online at the following URL:

http://www.cisco.com

Ordering Information

Product and Part Numbers Table 20-179: Part Numbers for the Cisco 1548 Series

Part Description	Part Number
Cisco 1548M Micro Switch 10/100 - 8-port autosensing 10/100 managed switch	CISCO1548M
Cisco 1548U Micro Switch 10/100 - 8 port autosensing 10/100 switch	CISCO1548U-DS

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