CyberData VoIP Loudspeaker Amplifier Part #010859 - Manual (Page 15)

Installing the VoIP Loudspeaker Amplifier
Loudspeaker Amplifier Setup
VoIP Loudspeaker Amplifier Operations Guide 930111F CyberData Corporation
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2.2.2 Loudspeaker Amplifier Jumpers
See Figure 2-4 to identify the jumper and component locations.
Figure 2-4. Jumper Locations
See Table 2-3 and Table 2-4 for the jumper settings.
Table 2-3. Jumper Settings—Low Power—802.3af Compliant (Default)
Jumper Setting
JP7 OFF -> Low Power (21V)
JP8 OFF -> Low Power (21V)
JP9 Position B -> Low Power
Table 2-4. Jumper Settings—High Power—Non-PoE Compliant
Jumper Setting
JP7 ON -> High Power (21V)
JP8 ON -> High Power (21V)
JP9 Position A -> High Power
JP9
JP8
JP7