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Power-36 (Feed and Ring Power)
The 3-pin feed and ring power is used with analog trunk voice processing boards, which provides the feed and ring power for the M2U, MTU, and MCS. The DC feed power is -36 V, while the AC ring power is 75 V.
Download DC feed power: -36 V/0.5 A
AC ring power: 75 V/0.13 A