Hitachi S-3000W Operating Instructions Manual page 22

Facility names and functions
43 Rear cover
Contains connections for battery and extension
adapter, etc.
44 DC IN connector (XLR, 4P)
Connect the separately sold AC adapter for
operating from AC power.
45 Intercom connector (XLR, 5P)
Connect intercom headset (MT-12MF) when
using the RU-Z1/RU-Z2/RU-Z3
46 150 V Out connector (5 pin, CA-Z32 only)
Connect 150 V to 12 V power supply adapter
when using a large size lens.
47 Audio monitor connector (minijack)
Connect an earphone (8 to 10Ω) to monitor
microphone or VTR playback sound.
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