Grandstream Networks, Inc.
DOCUMENT PURPOSE This document is a technical bulletin describing power consumption details for GAC2500. GAC2500 can be powered using Universal power supply: Input AC 100-240V 50/60Hz; Output 12VDC, 2A (24W) TEST CONDITION TERMINOLOGY The following test condition terminology was used in table 1. Idle State - The system has completed the boot-up process. - The system is set with default factory settings without any change. - No devices connected to auxiliary ports.
2. PD Power Classification Table 2: PD Power Classification (IEEE 802.3af) Class Usage Max Power Range used by the PD (phone) 0 Default 0.44 to 12.95W 1 Optional 0.44 to 3.84W 2 Optional 3.84 to 6.49W 3 Optional 6.49 to 12.95W 4 Not Allowed Reserved for future use (for example: IEEE802.3at) Table 3: PD Power Classification (IEEE 802.3at) Class Usage Max Power Range used by the PD (phone) 0 Default 0.44 to 12.95W 1 Optional 0.44 to 3.84W 2 Optional 3.84 to 6.49W 3 Optional 6.
