J4858D
HPE J4858D - Aruba Module Aruba 1G SFP LC SX 500m MMF XCVR. It is supplied new factory sealed, with the serial list issued before shipment and 12 mont
Aruba · Aruba Switches
JL357A
JL357A is an Aruba 2540 48G PoE+ 4SFP+ Switch. Designed for the digital workplace, the Aruba 2540 Switch Series is optimized for mobile users. With advanced security and network management tools - Aruba ClearPass Policy Manager and Aruba AirWave - this Layer 2...
- Ports
- (48) RJ-45 autosensing 10/100/1000 PoE+ ports (4) SFP+ 1/10GbE...
- Throughput
- 176 Gbps
- Dimensions
- 17.42 x 11.98 x 1.73 in
- Weight
- 17.49 KG
- New factory sealed in the original vendor carton
- Serial list issued before shipment
- 12 months replacement warranty as standard
- Worldwide courier or freight from Hong Kong
Product Overview
JL357A Overview
JL357A is an Aruba 2540 48G PoE+ 4SFP+ Switch. Designed for the digital workplace, the Aruba 2540 Switch Series is optimized for mobile users. With advanced security and network management tools - Aruba ClearPass Policy Manager and Aruba AirWave - this Layer 2 access switch is easy to deploy and manage. The published specification for JL357A lists a published switching capacity of 176 Gbps. It is supplied new factory sealed, with the serial list issued before shipment and 12 months replacement warranty as standard.
Key Benefits
What Owning JL357A Changes
Rated Performance Written Into the Quotation
176 Gbps published for JL357A as its switching capacity, confirmed against the current datasheet revision when the line is quoted.
Serials Issued Before It Ships
The serial list for your JL357A consignment is released before despatch, so it can be checked on the manufacturer portal while the goods are still with us.
A Complete Bill of Materials
Modules optics rails and power options are reviewed against JL357A before the quotation is issued, so the install crew is not blocked by a line nobody costed.
Support Registered Under the End User Name
A vendor support contract for JL357A is written under the end customer name, so the entitlement sits with the organisation that owns the outage.
Problems It Solves
Pain Points JL357A Removes
- PoE budget that stopped covering the access points cameras and phones added since
- Uplink modules and stacking cables quoted separately and discovered missing on site
- AOS-Switch and ArubaOS-CX estates that have drifted into two toolchains
- Performance taken from a family datasheet rather than from this part number, where the published switching capacity is 176 Gbps
- End of sale announcements that leave a proven design with no supply route for JL357A
Who It Is For
Who Benefits Most From JL357A
Campus Network Teams
Running one access standard across buildings of very different ages
Education IT
Delivering inside vacation windows against a budget year that rarely aligns with the install date
Enterprise IT Teams
Replacing equipment that has reached end of support before an audit rather than after one
Data Centre Operators
Adding capacity in defined increments as cabinets and rows fill up
Specifications
JL357A Manufacturer Specification
As published by Aruba for this part number. Full electrical, port and performance specifications are issued with the quotation against the current datasheet revision.
| Ports | (48) RJ-45 autosensing 10/100/1000 PoE+ ports (4) SFP+ 1/10GbE ports PHY-less |
|---|---|
| Memory and processor | Dual Core ARM Coretex A9 @ 1016 MHz 1 GB DDR3 SDRAM Packet buffer size: 12.38 MB 4.5MB Ingress/7.875MB Egress 4 GB eMMC |
| Latency | 1000 Mb Latency: < 3.8 µs 10 Gbps Latency: < 1.6 µs |
| Throughput | up to 112 Mpps |
| Switching capacity | 176 Gbps |
| PoE capability | 370 W PoE+ |
| Management features | Aruba AirWave Network Management IMC - Intelligent Management Center Command-line interface Web browser Configuration menu SNMP manager Telnet RMON1 FTP Out-of-band management (serial RS-232C or micro USB) |
| Input voltage | 100 - 127 / 200 - 240 VAC, rated |
| Power consumption | 459 W (maximum) |
| Heat dissipation | 1566 BTU/hr (1652.13 kJ/hr) |
| Product dimensions (H x W x D) | 17.42 x 11.98 x 1.73 in |
| Weight | 17.49 KG |
Supply Terms
How JL357A Is Supplied
| Part Number | JL357A |
|---|---|
| Brand | Aruba |
| Category | Aruba Switches |
| Product Condition | New factory sealed |
| Serial Traceability | Full serial list supplied before shipment |
| Warranty | 12 months replacement plus optional vendor support contract |
| Packaging | Original vendor carton with export grade outer |
| Lead Time | Confirmed in writing per line at quotation |
| Delivery | Worldwide courier or freight from Hong Kong |
Comparison
JL357A Against Other Models in Aruba Switches
Values are taken from each manufacturer specification. A blank means the manufacturer does not publish that attribute for that model.
| Attribute | JL357A | J4858D | J4859C | J9150D |
|---|---|---|---|---|
| Ports | (48) RJ-45 autosensing 10/100/1000 PoE+ ports (4) SFP+ 1/10GbE... | - | 1 LC 1000Base-LX port (IEEE 802.3z Type 1000Base-LX), Duplex:... | - |
| Throughput | 176 Gbps | - | - | - |
| Dimensions | 17.42 x 11.98 x 1.73 in | 0.6 x 2.2 x 0.5 in | 2.24 width x 0.54 depth x 0.486 in. height | 0.6 x 2.2 x 0.5 in |
| Weight | 17.49 KG | 0.1 lb | 0.04 lb | 0.1 lb |
| Reach | - | - | 2-220 m (62.5 µm core diameter, 160 MHz*km bandwidth), 2-275 m... | - |
| Form Factor | - | - | HP X121 1G SFP LC LX Transceiver | - |
| Product page | View JL357A | View J4858D | View J4859C | View J9150D |
Use Guide
Deployment Guide for JL357A
Confirm the Full Part Number
Check JL357A character for character including any suffix. On this class of hardware a single trailing character commonly changes the software tier, the power option, or whether a bundle is included.
Check Site Prerequisites
Confirm rack space, power feed, cabling and any uplink or accessory dependency before the order rather than on the day of installation.
Record It on Arrival
Photograph the sealed carton, reconcile the serial against the list supplied before shipment, then open and confirm the unit matches the label.
Bench Power Before Racking
Power the unit, capture the software version and the port or drive inventory, and record it while the unit is still accessible.
Register Support Entitlement
Register the support contract under the end user name so the entitlement sits with the organisation that owns the outage.
Related Products
Other Models in Aruba Switches
J4859C
HPE J4859C - Aruba Transceiver Aruba X121 1G SFP LC LX Transceiver. It is supplied new factory sealed, with the serial list issued before shipment and
J9150D
HPE J9150D - Aruba Transceiver Aruba 10G SFP+ LC SR 300m MMF XCVR:Aruba Aruba Campus Transceivers. It is supplied new factory sealed, with the serial
J9151A
HPE J9151A - Aruba Transceiver HP X132 10G SFP+ LC LR Transceiver. It is supplied new factory sealed, with the serial list issued before shipment and
J9151D
HPE J9151D - Aruba Transceiver Aruba 10G SFP+ LC LR 10km SMF XCVR. It is supplied new factory sealed, with the serial list issued before shipment and
J9151E
HPE J9151E - Aruba Transceiver Aruba 10G SFP+ LC LR 10km SMF XCVR. It is supplied new factory sealed, with the serial list issued before shipment and
J9727A
HPE J9727A - Aruba 2920 Switch Aruba 2920 24G POE+ Switch. The published specification for J9727A lists 370 W available to powered devices. It is supp
J9728A
HPE J9728A - Aruba 2920 Switch Aruba 2920-48G Switch. It is supplied new factory sealed, with the serial list issued before shipment and 12 months rep
Where It Goes
Industries That Deploy It
Healthcare
Hardware supplied with the traceability and change discipline a clinical environment requires.
Manufacturing and Logistics
Connectivity for plant floors, warehouses and distribution sites built for continuous operation rather than office hours.
Solutions
Programmes It Is Supplied Under
Global Logistics and Drop Shipping
Hong Kong is a practical despatch point for most of the world. Consignments go to the site, not to a central store and then out again.
Procurement for System Integrators
An integrator carries the risk between quoting a client and receiving the hardware. Firm pricing and a written lead time per line is what makes that risk manageable.
Network Refresh Programme
Most refresh projects fail on supply rather than on design. A phased programme only works if every phase arrives complete on the date the change window was booked.
Reference
Project Cases and Guides
Carrier Managed CPE Programme
The programme needed identical customer premises equipment supplied continuously for years and shipped directly to end customer sites
Regional Bank Branch Refresh Across 140 Sites
The branch edge had reached end of software support and the estate had drifted into four different router models bought across eight years
Verifying Hardware Authenticity
Checks that cost minutes on arrival and save a great deal later. Most of them can be done before the carton is opened.
New Versus Refurbished Network Hardware
The choice is rarely about quality. It is about entitlement, traceability and what happens eighteen months after the invoice is paid.
How to Read Cisco Catalyst Part Numbers
A Catalyst part number encodes the port count, the port type, the uplink arrangement and the software tier. Misreading one character changes what arrives.
FAQ
JL357A Frequently Asked Questions
Is JL357A New or Refurbished
Standard supply is new factory sealed in the original vendor carton. If a quotation offers another condition that is stated explicitly in writing before you commit.
Can I Get the Serial Numbers for JL357A Before Payment Clears
Yes. Serials are issued before shipment so you can check them on the manufacturer portal while the goods are still with us.
What Is the Lead Time for JL357A
Availability is confirmed in writing per line at quotation rather than as a project average, because one late line is what moves an installation date.
What Warranty Does JL357A Carry
12 months replacement as standard. A vendor support contract is available separately and is registered under the end user name.
What Performance Is JL357A Rated For
The published switching capacity is 176 Gbps. Full port and performance specifications are issued with the quotation against the current datasheet revision.
Are Uplink Modules and Optics Included With JL357A
They are quoted as separate lines and reviewed against the chassis before the quotation is issued, so they reach site in the same consignment as the unit they belong to.
Can You Ship JL357A to My Country
Yes. Consignments go worldwide by courier or freight from Hong Kong, with the routing chosen against the destination clearance regime and your deadline.
Can You Drop Ship JL357A to My Customer
Yes. Consignments can be released directly to an end customer address under your own documentation.
Request Pricing for JL357A
Send the quantity and destination country. Availability and lead time come back in writing, with the serial list before shipment.