Provides 12-ports connecting to ISDN-BRI terminals. Each port uses TXT, TXR, PXT, PXR signal leads and ranges up to 3300 feet maximum from the system to the voice terminal.
Key Features:
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Mfr. Part #: TN556B
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Ports connection to ISDN-BRI terminals: 12
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Signal leads: TXT, TXR, PXT, and PXR
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Up to 8 ports can be used for ASAI links
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2 B-channels
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1 D-channel
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Range up to 3300 ft.
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Compatible with Definity R7 or late
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Requires a packet control circuit pack (TN778) if using R6si systems
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