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This Norstar Digital Trunk Interface (DTI) terminals a 24-channel T1 link from a public or private network. It will also support fractional T-1. An RJ48 jack provides the interface to the T1 network. Each of the 24 channels can be configured to emulate either loop-start, E&M, or DID trunks. The DTI has an integrated Channel Services Unit (CSU). The CSU provides line isolation, signal regeneration, and network performance monitoring. The CSU can be turned off for use with an external CSU. Must use with clock services cartridge. For use on the Norstar Modular ICS only.
- Mnfr. Part #: NT7B74GA-93
- Provides access fo up to 24 digital T1 or ISDN-PRI channels
- Equipped with built-in Channel Service Unit (CSU) functionality to support the integrity of digital signaling
- Core Modular ICS can support up to two DTIs for a total of 48 T1 or ISDN-PRI (digital) lines
- DTIs cannot be installed in Trunk Modules
- Requires either the Services Cartridge of the Combination Fiber 6-Port Services Cartridge
- Compatible with the Modular ICS core only
- ISDN-PRI Soft Key is required in order to configure the Digital Trunk Cartridge as a PRI Card
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