TN Form Factor Circuit Packs

TN767E DS1 / ISDN PRI Interface Circuit Pack

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The TN767E or greater is required to communicate with CONVERSANT®. The TN767E or greater is also required to obtain the enhanced maintenance capabilities of the Enhanced Integrated Channel Service...

TN765 Processor Interface

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The TN765 has four data links to the Time Division Multiplexing (TDM) bus and a link through the memory bus to the processor. This circuit pack is an interface to the 3B2 MSA, DCS, ISDN, and AUDIX™...

TN763D Auxiliary Trunk

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The TN763B/C/D has four ports. Each port has T, R, SZ, SZ1, S, and S1 signal leads. The ports are used for on-premises applications such as Music-On-Hold, Loudspeaker Paging, and Recorded Telephone...

TN763C Auxiliary Trunk

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The TN763B/C/D has four ports. Each port has T, R, SZ, SZ1, S, and S1 signal leads. The ports are used for on-premises applications such as Music-On-Hold, Loudspeaker Paging, and Recorded Telephone...

TN762B Hybrid Line Circuit Card

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The TN762B has eight ports connecting to multi-appearance hybrid analog and digital voice terminals. It can connect to AT&T 7300 series telephones, an MDC-9000 (cordless telephone), and an MDW-9000...

TN760C Tie Trunk

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The TN760 has four ports used for Type 1 or Type 5 four-wire E & M lead signaling tie trunks, that can be automatic, immediate-start, wink-start, and delay-dial. Each port on the TN760 has T, R, T1,...

TN756 Tone Detector

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The TN756 has four Dual Tone Multi-Frequency (DTMF) receivers and two general-purpose tone receivers to detect call progress tones, modem answerback tones, transmission test tones, and noise. The...

TN754B 4-Wire DCP Digital Line Circuit Pack

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The TN754 and TN754B each have eight asynchronous Digital Communications Protocol (DCP) ports connected to 4-wire terminals such as the 7400 and 8400-series digital voice terminals, attendant...

TN754 4-Wire DCP Digital Line Circuit Pack

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The TN754 and TN754B each have eight asynchronous Digital Communications Protocol (DCP) ports connected to 4-wire terminals such as the 7400 and 8400-series digital voice terminals, attendant...

TN753 Direct Inward Dial Trunk Circuit Card

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The TN753 has eight ports used for immediate-start and wink-start DID trunks. Each port on a TN753 has Tip and Ring signal leads. For Czechoslovakia and the Commonwealth of Independent States, TN753...

TN750C Announcement Circuit Pack

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The TN750C records and stores announcements that can be played back on demand as part of a calling feature. The TN750C is required for the Multiple Integrated Announcements feature. However, the...

TN750B Announcement Circuit Pack

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The TN750 and TN750B record and store announcements to be played back on demand as part of a calling feature. The TN750 has sampling rates of 16, 32, or 64 kbps. The TN750 records announcement times...

TN748D Tone Detector

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The TN748C/D has four Dual Tone Multi-Frequency (DTMF) receivers and two general purpose tone receivers to detect call progress tones, modem answer-back tones, transmission test tones, and noise. The...

TN748C Tone Detector

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The TN748C/D has four Dual Tone Multi-Frequency (DTMF) receivers and two general purpose tone receivers to detect call progress tones, modem answer-back tones, transmission test tones, and noise. The...