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- Description
- Specifications
JL684B is the HPE Networking Instant On 1930 24G Class4 PoE 4SFP/SFP+ 370W switch. It has 24 autosensing 10/100/1000 RJ-45 ports with Class 4 PoE, up to 30 W per port, and four SFP+ ports for 1 or 10 GbE. The 370 W PoE budget is nearly double the 195 W of the 24-port JL683B, and the 48-port 370 W model is JL686B.
Its electrical rating is 100-127 or 200-240 VAC at 50-60 Hz with 4.9 A or 2.4 A, a maximum power rating of 440.4 W and idle power of 20.3 W, all from an internal power supply. The unit weighs 8.23 lb (3.73 kg), measures 17.42 x 10.42 x 1.73 inches (44.25 x 26.47 x 4.39 cm) and stands 1U high. Acoustics are 4.0 Bel sound power and 24 dB bystander sound pressure.
Forwarding performance is 95.23 Mpps and 128 Gbps, with latency under 4.7 microseconds at 100 Mb, under 2.4 microseconds at 1000 Mb and under 1.3 microseconds at 10000 Mb. The MAC table holds 16,000 entries, and the mean time between failures is rated at 71 years. An ARM Cortex-A9 at 800 MHz runs alongside 512 MB of SDRAM and 256 MB of flash.
Supported modules include the Instant On 1G SFP LC SX 500m (R9D16A), 1G SFP RJ45 T 100m Cat5e (R9D17A) and 10G SFP+ LC SR 300m (R9D18A), the Aruba 1G SFP LC LX 10km (J4859D) and the 10G SFP+ LC LR 10km (J9151E). Two HPE spare unit numbers exist: JL684-61101 and JL684-61201.
Other switches with Class 4 PoE are in the HPE Aruba switches category, for example the JL725A and the JL727A.
| Part number | JL684B |
| Series | HPE Networking Instant On 1930 |
| Ports | 24 x 10/100/1000 RJ-45 Class 4 PoE, 4 x SFP+ 1/10GbE |
| PoE budget | 370 W |
| Switching capacity | 128 Gbps |
| Throughput | 95.23 Mpps |
| MAC table | 16,000 entries |
| Memory | 512 MB SDRAM, 256 MB flash, 1.5 MB packet buffer |
| Power supply | internal, 100-127 / 200-240 VAC, maximum 440.4 W |
| Size and weight | 1U, 17.42 x 10.42 x 1.73 in, 8.23 lb |
| Mean time between failures | 71 years |
| Spare units | JL684-61101, JL684-61201 |