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Accessory Connection Module (ACM) (NTMN71AA)
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One of the following wall transformers to power the FDHF cartridge:
—110V wall transfer (NTMN80AA)
—220V wall transformer (NTMN80BA)
—EU 230V wall transformer (NTHC08AA)
—UK 230V wall transformer (NTHC09AA)
M3900 Series Meridian Digital Telephones Description, Installation and Administration
Hardware options
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