An IP500 V2 control unit has 12 DS30 external expansion modules configured. What is the maximum number of physical PRI trunk ports that can be configured?

Question

Options

• A6
• B3
• C4
• D8

• A
  94% (15)
• B
  6% (1)

Explanation

Option A (6) is correct because the IP500 V2 supports a maximum of three physical PRI trunk cards when 12 DS30 external expansion modules are configured, and each PRI card provides two physical PRI ports - giving 3 × 2 = 6 total physical PRI trunk ports.

Option B (3) is a common trap: it represents the number of PRI cards you can install, not the number of PRI ports those cards expose - candidates confuse the card count with the port count. Option C (4) refers to the number of internal expansion card slots on the IP500 V2 base unit itself, not the resulting PRI port capacity. Option D (8) has no valid calculation path in this configuration and likely results from misremembering limits from a different module or system variant.

Memory tip: Think "3 cards × 2 ports = 6" - picture a trio of dual-headed cables. When all 12 DS30 slots are filled externally, you're left with up to 3 internal PRI slots, each delivering 2 ports. Never confuse the card count (3) with the port count (6) - the exam specifically asks for physical PRI trunk ports.

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