Which series of Huawei switches () is the Huawei plug-in controller ACU board suitable for? (Multiple choice)

Question

Options

• AS9300 series switches
• BS9700 series switches
• CS7700 series switches
• DS5700 series switches

• A
  72% (18)
• D
  28% (7)

Explanation

Huawei's ACU (Aggregation Control Unit) plug-in controller board is designed for chassis-based, modular switches - the S9300, S9700, and S7700 series all use a slot-based architecture that physically accepts plug-in cards such as the ACU. These three product lines are enterprise-class core/aggregation switches built around a modular chassis, making them compatible with add-in controller boards.

Option D (S5700) is wrong because the S5700 is a fixed-configuration access-layer switch - it has no card slots, so plug-in boards like the ACU cannot be installed in it.

Memory tip: Think "plug-in = modular chassis." If the switch model starts with S7 or S9, it's a chassis switch that accepts plug-in cards. The S5xxx series are pizza-box fixed switches - no slots, no plug-ins. When you see "plug-in board" in a question, immediately eliminate any fixed-form-factor switch.

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