Huawei S5700-28P-PWR-LI-AC 02353175 Huawei Quidway S5700 Switch

PoE capacity depends on both power source and software

Huawei S5700-28P-PWR-LI-AC, part code 02353175, has 24 PoE+ copper Gigabit access ports and four 1000BASE-X optical uplinks. Its built-in AC supply provides a 369.6 W usable PoE budget without an external RPS. That supports 24 ports at 15.4 W under 802.3af or 12 ports at 30 W under 802.3at. Twenty-four PoE-capable ports therefore do not mean that every port can deliver 30 W simultaneously from the internal supply.

Check the RPS version boundary before budgeting power

The switch accepts an external RPS1800. On V200R001, Huawei states that the RPS provides PoE backup only and does not increase the 369.6 W budget. For versions after V200R001, the documented external-RPS configuration provides an 800 W budget. Do not apply the later-version figure to an early deployment. RPS system-power and PoE-power inputs are separate, and system backup can operate without PoE delivery. The RPS cable is not hot-swappable. Confirm the software version, RPS configuration, cabling and inclusion in the quotation before relying on the expanded budget.

Reserve the right optical ports for stacking

The four optical uplinks are Gigabit interfaces. Listed SFP+ and AOC cable options are for stacking only; their connector names do not establish normal 10GE uplink support. On V200R010 and earlier releases, only the last two optical uplinks are reused as stacking ports. On V200R011 and later releases, all four can be reused. Dedicated 0.5 m and 1.5 m configuration-free stacking cables require V200R011C10 or later. Plan the remaining optical uplinks after allocating the stack ports, and verify the selected module and release together.

Distinguish chassis consumption from PoE output

The internal supply is fixed; pluggable power modules are not supported. Rated input is 100–240 V AC at 50/60 Hz. Huawei lists maximum consumption of 436.5 W at full traffic, full PoE load and full fan speed, split into 66.5 W device consumption and approximately 370 W PoE output. The separate 29.2 W typical figure excludes PoE and uses the ATIS 30%-traffic, EEE-enabled conditions. Three fans move air from left to right. Chassis dimensions are 442 x 310 x 43.6 mm and packaged weight is 4 kg. Operation is specified at 0–50 degrees Celsius up to 1800 m; above that, reduce the upper limit by 1 degree per 220 m to the 5000 m altitude ceiling. The Mini USB console takes precedence when it and the RJ-45 console are both connected.

Huawei exact-model hardware specifications