Nortel T1 Services Cartridge(Model # NTBB24)
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Nortel T1 Features:
- Required if using DTI cartridge(s) or ISDN-BRI Interface cartridge(s)
- One services cartridge supports all clocking required, regardless of the number or mixture of DTIs and/or ISDN-BRI Interface cartridges
- Uses Slot 1 of the core ICS and cannot be used if a Copper Expansion Upgrade Cartridge is installed
- Compatible with the Modular ICS core only