Cisco Catalyst WS-X4148-RJ45V line card

CISCO Part #/MPN: WS-X4148-RJ45V

DiscTech Item #: CIS-WS-X4148-RJ45V-UP-OE


Interface Types: Ethernet RJ45

Electrical Interface: Ethernet Fast - 100Mbps

Bays/Ports/Slots: 48

Cisco WS-X4148-RJ45V 48port Fast Ethernet Line card with Power over Ethernet (PoE) - Used Pull

Cisco WS-X4148-RJ45V 48port Fast Ethernet Line card with Power over Ethernet (PoE) - Used Pull For Cisco Catalyst 4006 and 4500 series (4506, 4507R, 4510R) Switches.
The WS-X4148-RJ45V 48 port 10/100 line module for the Catalyst 4006 switch. In order to provide in-line power using the Catalyst 4006 switch, you must add on several other components. In-line power is only available on the Cisco Catalyst 4006 and not the Cisco Catalyst 4003 because only the Cisco Catalyst 4006 chassis has the ability to accept the Power Entry Module (PEM) and also has traces on the back-plane which allow the DC power to be supplied to inline-power capable line cards. To enable in-line power on the Cisco Catalyst 4006, you must have the Cisco Catalyst 4000 Auxiliary DC Power Shelf and at least two power supplies (WS-P4603-2PSU). The power shelf can accept up to three power supplies (WS-X4608) for N+1 redundancy. At least two are required for in-line power to work. Special cables (which are included with the power supplies) are used to attach each power supply to the PEM (WS-X4095-PEM). Finally, you must have an in-line power capable line card in the chassis. The WS-X4148-RJ45V is a 48 port in-line power capable 10/100 Ethernet switching module. The picture below does not show the in-line power daughter card that is included with the Cisco Catalyst 4148. It is similar to the daughter-card on the Cisco Catalyst 6000 module. The Cisco Catalyst 4006 switch operates identically to the Cisco Catalyst 6000 switch, in respect to in-line power detection and delivery.

The WS-X4148-RJ45V 48-port Cisco pre-standard Power over Ethernet (PoE) 10/100BASE-TX switching module has the following specifications:


Module type

10/100BASE-TX Fast Ethernet switching module with Cisco pre-standard PoE

Port duplex mode

Half or full duplex mode

Port speed

10 or 100 Mbps

Number of ports


Connector type


Cable type


Power over Ethernet

6.3 W per-powered device on a port, on all 48 ports

Weight: 15 lb

Warranty: 1 Year DiscTech

Used Pull

Condition Levels Explained

The product has been removed from a working system (e.g. server). These products vary in their usage due to age of system & type of service etc.. However, Used System Pulls are fully tested and all handling is performed by trained technicians, taking full ESD precautions.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty