Kommutator Cisco WS-C3750X-48PF-L


Kommutator Cisco WS-C3750X-48PF-L PoE+ 1GB Uplink Module


WS-C3750X-48PF-L Overview

WS-C3750X-48PF-L PoE+ 1GB Uplink Module

Cisco Catalyst 3750-X Series Switch

Stackable 48 10/100/1000 Ethernet Full PoE portsFour optional uplink network modules with GE or 10GE portsIndustry first PoE+ with 30W power on all ports in 1 rack unit (RU) form factorDual redundant, modular power supplies and fansMedia Access Control Security (MACsec) hardware-based encryptionFlexible NetFlow and switch-to-switch hardware encryption with the Service Module uplinkUSB Type-A and Type-B ports for storage and console respectively and an out-of-band Ethernet management portStackWise PlusCisco StackPowerTM technology: An innovative feature and industry first for sharing power among stack membersCisco StackWise Plus technology for ease of use and resiliency with 64 Gbps of throughputInvestment protection with backward compatibility with all other models of Cisco Catalyst 3750 Series Switches

Figure 1

Cisco Catalyst 3750-X Series Switches support 4 optional network modules for uplink ports (Figure 1);
The default switch configuration doesn’t include the uplink module;
When purchasing switch, customers have flexibility to choose any group of network modules described below:

Product NumberProduct Description
C3KX-NM-1GFour GbE port network module
C3KX-NM-10GTwo 10GbE SFP+ ports network module with four physical ports with two SFP+ and two regular SFP ports
C3KX-NM-10GTTwo 10GB-T ports network module
C3KX-SM-10GService Module with two 10GbE SFP+ ports network module for Netflow and MACsec encryption

Figure 2

Dual Redundant Modular Power Supplies

Cisco Catalyst 3750-X Series and 3560-X Series Switches support dual redundant power supplies (Figure 2);
One power supply is shipped with the switch by default;
Other power supply/suppliers can be purchased when ordering the switch or next time according to your needs.
If only one power supply is installed, it should always be in the power supply bay 1.

Table below shows the different power supplies available in these switches and available PoE power.

Power Supply Models

ModelsDefault Power SupplyAvailable PoE Power
24 Port Data SwitchC3KX-PWR-350WAC
48 Port Data Switch
24 Port PoE SwitchC3KX-PWR-715WAC435W
48 Port PoE Switch
48 Port Full PoE SwitchC3KX-PWR-1100WAC800W
24 Port UPOE SwitchC3KX-PWR-1100WAC800W
48 Port UPOE Switch


Besides the above power supplies, a 440W DC power supply is available as a spare (should be ordered separately) on all switch models;
The DC power supply also delivers PoE capabilities for maximum flexibility, (please refer to table 7 for available PoE for different configurations);
Customers can mix and match the AC and DC power supplies in the two available power supply slots. Any of these power supplies can be installed in any of the switches.

Available PoE with DC power supply

Model# of 440W


Total Available PoE Budget
24-Port PoE Switch1220W
48-Port PoE Switch1185W
UPOE (60W per port)One C3KX-PWR-715WAC and one C3KX-PWR-1100WAC


Two C3KX-PWR-1100WAC

One C3KX-PWR-715WAC and one C3KX-PWR-1100WAC


Two C3KX-PWR-1100WAC

Cisco Catalyst 3750-X Series Switch WS-C3750X-48PF-L is an enterprise-class lines of stackable and standalone switches, respectively. Catalyst 3750-X 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. Cisco Catalyst 3750-X Series with StackWise Plus technology provides scalability, ease of management and investment protection for the evolving business needs. The Cisco Catalyst 3750-X switches enhance productivity by enabling applications such as IP telephony, wireless, and video for borderless network experience.

WS-C3750X-48PF-L Specification

WS-C3750X-48PF-L data sheet
ManufacturerCisco Systems, Inc
Manufacturer Part NumberWS-C3750X-48PF-L
Product TypeSwitch – 48 ports – Managed – stackable
Form FactorFixed, Rack Mountable 1U, Stackable/Clustering
Switch Port density – Uplinks48 x 10/100/1000 Ethernet Ports
Power Over Ethernet (PoE)Yes
Max Number of Stacks9
Remote Management ProtocolSNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, FTP, TFTP, SSH, CLI
Authentication MethodKerberos, Secure Shell (SSH), RADIUS, TACACS+
FeaturesHot swap module replacement, Layer 2 switching, dynamic IP address assignment , DHCP support, power over Ethernet (PoE), auto-negotiation, ARP support, trunking, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, Syslog support, traffic shaping, Broadcast Storm Control, High Availability, Multicast Storm Control, Unicast Storm Control, Rapid Spanning Tree Protocol (RSTP) support, DHCP snooping, Dynamic Trunking Protocol (DTP) support, Port Aggregation Protocol (PAgP) support, Access Control List (ACL) support, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), PoE+, Per-VLAN Spanning Tree Plus (PVST+)
Compliant StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3at
DRAM Memory256 MB
Flash Memory128 MB Flash
LED Status Lights IndicatorsPort status, link activity, port transmission speed, port duplex mode, power, system
Connectivity / Expansion Slots
Interfaces48 x 10Base-T/100Base-TX/1000Base-T – RJ-45 – PoE
USB : 1 x 4 PIN USB Type A
1 x console – mini-USB Type B – management
1 x RS-232 – RJ-45 – management
1 x 10Base-T/100Base-TX – RJ-45 – management
Network stack device : 2 x
Expansion Slots Total (Free)1 ( 1 ) x Expansion Slot
Power Supply Specifications
Power DevicePower supply – redundant – plug-in module
Installed Qty1 (installed) / 2 (max)
Power RedundancyOptional
Power Redundancy Scheme1+1 (with optional power supply)
Voltage RequiredAC 120/230 V ( 50/60 Hz )
FeaturesRedundant Power System (RPS) connector
Dimensions / Weight / Miscellaneous
Width44.5 cm
Depth49.5 cm
Height4.5 cm
Weight7.6 kg
Rack Mounting KitOptional
MTBF139,913 hour(s)
Compliant StandardsCE, TUV GS, CISPR 22 Class A, GOST, cUL, NOM, VCCI Class A ITE, EN55022 Class A, CB, AS/NZS 60950-1, AS/NZ 3548 Class A, CCC, RoHS, UL 60950-1, IEC 60950-1, EN 60950-1, KCC, FCC Part 15 A, CSA C22.2 No. 60950-1
System Software
Software IncludedCisco IOS LAN Base
Manufacturer Warranty
Service & SupportLimited lifetime warranty


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