How does Virtual Chassis work on this switch?

Virtual Chassis technology interconnects up to 10 EX4200 units over a 128 Gbps backplane, forming a single logical device with unified management. It supports mixed models for flexible scaling up to 480 Gigabit ports plus uplinks, simplifying operations in enterprise stacks.

What is the switching performance?

Provides 136 Gbps packet switching capacity (64-byte packets), 264 Gbps aggregate capacity, and 101 Mpps Layer 2/3 wire-speed throughput. Supports 32,000 MAC addresses, 4,096 VLANs, and 9,216-byte jumbo frames for high-performance L2/L3 operations.

What Layer 3 routing features are included?

Supports up to 16,000 IPv4 unicast routes and 8,000 multicast routes in hardware with RIPv1/v2, OSPF, BGP, IS-IS. For IPv6, up to 4,000 unicast and 2,000 multicast routes with RIPng, OSPFv3, BGP4+, PIM, including 16,000 ARP/ND entries.

What are the power and cooling options?

Dual input feed with load-sharing hot-swappable internal redundant power supplies at 72V DC, 930W AC max. Features a field-replaceable fan tray with 3 blowers (20.3 CFM airflow); switch operates if one blower fails, ensuring high availability.

What are the physical dimensions and environmental specs?

1 RU rack-mountable at 17.41 x 1.72 x 16.43 inches. Operates 0°C to 40°C, stores -40°C to 70°C, 10-90% noncondensing humidity. Includes RJ-45, LC SFP, XFP connectors with optics support for 100M/GbE/10GbE.

EX4200-48T-S - Juniper EX4200-48T-S 48x1GbE PoE+ L2/L3 Managed Switch

Name: Juniper EX4200-48T-S 48x1GbE PoE+ L2/L3 Managed Switch
Brand: Juniper
SKU: EX4200-48T-S

EX4200-48T-S - Juniper EX4200-48T-S 48x1GbE PoE+ L2/L3 Managed Switch | US IT Hardware

Product overview

The Juniper Networks EX4200-48T-S is a Layer 2/3 managed Ethernet switch in the EX4200 line, designed for enterprise environments. It features 48 x 10/100/1000BASE-T PoE+ ports compliant with 802.3at at 30W per port, subject to PoE budget, plus 4 GbE SFP uplinks and optional 2 x 10GbE XFP. Powered by a 1 GHz PowerPC CPU, 1 GB DRAM with ECC, and 1 GB flash, it delivers 136 Gbps packet switching and 101 Mpps Layer 2/3 throughput. Virtual Chassis technology enables stacking up to 10 units via 128 Gbps backplane as a single logical device. Supports 32,000 MAC addresses, 4,096 VLANs, 9,216-byte jumbo frames, and advanced IPv4/IPv6 routing with up to 16,000 unicast routes. Dual hot-swappable power supplies (930W AC max) and field-replaceable fan tray ensure high availability. Ideal for branch, campus access, and GbE aggregation with 1 RU form factor.

48 PoE+ ports @30W 802.3at per port
136 Gbps switching, 101 Mpps L2/L3 throughput
Virtual Chassis: stack up to 10 units, 128 Gbps
32K MAC, 4K VLANs, 9,216-byte jumbo frames
Dual hot-swap PSUs, redundant fan tray
L3 routing: 16K IPv4/4K IPv6 unicast routes

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	EX4200-48T-S
Brand	Juniper
Condition	New
CPU	1 GHz PowerPC CPU
DRAM	1 GB with ECC
Model	EX4200-48T-S
Backplane	128 Gbps Virtual Chassis interconnect
Fan System	Field-replaceable fan tray with 3 multiple blowers; switch remains operational if one blower fails
Technology	Virtual Chassis technology; stackable architecture supporting up to 10 units as single logical device
ARP Entries	16,000 maximum
PoE Support	48 PoE+ ports; 802.3at compliant @ 30W per port subject to maximum PoE budget

Compatible systems

EX4200-48T-S is a standalone Layer 2/3 Ethernet switch; compatibility data not applicable for this device category

Best for

Campus Access
Supports 48 PoE+ ports at 30W for powering IP phones, cameras, and WLAN APs in campus deployments. Virtual Chassis stacks up to 10 units for scalable logical management.
Branch Networking
Layer 2/3 features including 4,096 VLANs and 32,000 MAC addresses handle branch traffic. 136 Gbps switching ensures wire-speed performance with 101 Mpps throughput.
GbE Aggregation
4 SFP GbE uplinks and optional 10GbE XFP provide high-speed uplinks. 128 Gbps Virtual Chassis interconnect enables pay-as-you-grow expansion up to 480 ports.
Data Center ToR
1 RU rack-mountable with dual redundant PSUs and fan tray for reliable top-of-rack access. Jumbo frames up to 9,216 bytes optimize large data transfers.

Frequently asked questions

What PoE capabilities does the EX4200-48T-S provide?

Details

Shipping, warranty & returns

Customer reviews

No reviews yet — be the first to review this part.

Flash Memory	1 GB

IPv4 Routing	Max 16,000 unicast routes in hardware; 8,000 multicast routes; RIPv1/v2, OSPF, BGP, IS-IS protocols

IPv6 Routing	Max 4,000 unicast routes in hardware; 2,000 multicast routes; RIPng, OSPFv3, IPv6, ISIS, BGP4+, PIM, MLD, MLDv2 protocols

Jumbo Frames	9,216 bytes

Product Line	EX4200 Ethernet Switches

Product Type	Layer 2/Layer 3 Managed Ethernet Switch

VLAN Support	4,096 VLANs

Switching Engine	Store and forward

MAC Address Table	32,000 maximum MAC addresses per system

Neighbor Discovery	16,000 maximum ND entries (shared with IPv4)

Layer 2/3 Throughput	101 Mpps wire speed (maximum with 64-byte packets)

Management Interface	HTTP/HTTPs; SSH v2; Telnet; SNMP; TACACS+; Syslog logging; FTP/secure copy config backup

Physical Layer Features	Time Domain Reflectometry (TDR) for cable break/short detection; Auto MDI/MDIX support on all ports; Port speed downshift capability

Aggregate Switch Capacity	264 Gbps (maximum with 64-byte packets)

Packet Switching Capacity	136 Gbps (maximum with 64-byte packets)

DRAM	1 GB with ECC
Flash Memory	1 GB

CPU	1 GHz PowerPC CPU

Network & Communication

Backplane	128 Gbps Virtual Chassis interconnect
IPv4 Routing	Max 16,000 unicast routes in hardware; 8,000 multicast routes; RIPv1/v2, OSPF, BGP, IS-IS protocols
IPv6 Routing	Max 4,000 unicast routes in hardware; 2,000 multicast routes; RIPng, OSPFv3, IPv6, ISIS, BGP4+, PIM, MLD, MLDv2 protocols
Layer 2/3 Throughput	101 Mpps wire speed (maximum with 64-byte packets)
Aggregate Switch Capacity	264 Gbps (maximum with 64-byte packets)
Packet Switching Capacity	136 Gbps (maximum with 64-byte packets)

Power Consumption

Max Wattage	930 W AC PSU
Power Supplies	Dual input feed, dual load-sharing hot-swappable internal redundant power supplies; 72V DC
Minimum PSUs Required	1 per switch for fully loaded chassis

Dimensions	17.41 x 1.72 x 16.43 inches (44.21 x 4.32 x 41.73 cm)
Rack Mount	1U rack-mountable
Form Factor	1 RU (Rack Unit)

Airflow	20.3 CFM
Humidity	10% to 90% noncondensing
Storage Temperature	-40°C to 70°C
Operating Temperature	0°C to 40°C

Interface/Ports

10GbE Optics	SR (multimode), USR (multimode), LR (single-mode), ER (single-mode), LRM (multimode), DAC (direct-attach copper)
Ethernet Ports	48 x 10/100/1000BASE-T (RJ-45); 4-port GbE uplink module (SFP); 2-port 10GbE uplink module (XFP) optional
Gigabit Optics	1000BASE-T SFP; SX (multimode), LX (single-mode), LH/ZX (single-mode), BX (single-strand)
100 Mbps Optics	LC SFP fiber; 100BASE-FX SFP (multimode), LX (single-mode), BX (single-strand)
Connector Types	RJ-45 for 10/100/1000BASE-T; LC SFP fiber for GbE/100Mbps optics; XFP for 10GbE optics

Juniper EX4200-48T-S 48x1GbE PoE+ L2/L3 Managed Switch