an access switch to a distribution switch or to interconnect member switches of a VirtualChassis across multiple wiring closets.Power over Ethernet (PoE) PortsPoE ports provide electrical current to devices through the network cables so that separatepower cords for devices such as IP phones, wireless access points, and security camerasare unnecessary. J-EX4200 switches have partial (8 ports) PoE capability.Partial PoE models are used in environments where, for example, only a few ports forwireless access points or security cameras are required.RelatedDocumentationJ-EX4200 Switch Models on page 5•• Field-Replaceable Units in J-EX4200 Switches on page 16• Site Preparation Checklist for J-EX4200 Switches on page 57J-EX4200 Switch ModelsThe J-EX4200 switch is available with 24 or 48 ports and with partial Power over Ethernet(PoE) capability. Table 4 on page 5 lists the J-EX4200 switch models.Table 4: J-EX4200 Switch ModelsPower Supply(Minimum)Number of PoE-enabled PortsPortsModel320 WFirst 8 ports24 Gigabit EthernetJ-EX4200-24T320 WFirst 8 ports48 Gigabit EthernetJ-EX4200-48T320 WNot applicable24 small form-factor pluggable(SFP) transceiversJ-EX4200-24FRelatedDocumentationFront Panel of a J-EX4200 Switch on page 6•• Rear Panel of a J-EX4200 Switch on page 7• J-EX4200 Switches Hardware Overview on page 3Chassis Physical Specifications for J-EX4200 SwitchesThe J-EX4200 switch chassis is a rigid sheet-metal structure that houses the hardwarecomponents. Table 5 on page 5 summarizes the physical specifications of the J-EX4200switch chassis.Table 5: Physical Specifications of the J-EX4200 Switch ChassisValueDescription1.75 in. (4.45 cm)Chassis height5Chapter 1: Dell PowerConnect J-Series J-EX4200 Switches Overview