Nortel NT5B04AAAD DTM Digital Trunk InterFace Module for BCM systems.
- The Nortel BCM Digital Trunk Media Bay Module connects to a standard digital PSTN T1/fT1, E1/fE1, or PRI ISDN line using either a digital or PRI line
- Also supports DASS2, DPN22, Q.SIG, and MCDN over ISDN
- On North American BCM systems, the DTM connects a T1 or PRI circuit to the BCM system; T1 circuits provide 24 digital channels to the PSTN, while PRI circuits provide 23 digital channels to the PSTN
- On International BCM systems, the DTM connects an ETSI ISDN (E1) or PRI (EI) circuit to the BCM system, providing a maximum of 30 digital channels to the PSTN
- The front bezel of the DTM has an RJ-48C connector that connects the DTM to the service provider connection point
- The faceplate also has a set of monitor jacks you can use to monitor the span
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