Definity Expansion Modules

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Definity Expansion Modules

We Sell, Install, Service & Maintain these Definity Expansion Modules!

Definity expansion modules come with an array of capabilities that need to be properly configured with the use of your system. Add digital and analog station cards, CO trunk, DID, DS1 and ISDN cards. If you are unsure what expansion module you need for your system, call us Toll Free at 1-866-272-8292 and we'll help you find the card you need.

	24 Port Digital Station Circuit Card TN2224CP Supports 24 digital telephones.

	24 DCP Port Circuit Card (Refurbished) TN2224B Supports 24 digital telephones.

	24 Port Analog Station Circuit Card TN793B Supports 24 analog telephones.

	16 Port Digital Station Circuit Card TN2181 16 Digital Communications Protocol (DCP) ports that can connect to 2-wire terminals

	Central Office 8 Trunk Circuit Card TN747B 8-ports for loop-start or ground-start CO, foreign exchange (FX), and Wide Area Telecommunications (WATS) trunks

	Auxiliary 4 Trunk Circuit Card TN763D Provides 4 ports

	Direct Inward Dial 8 Trunk Circuit Card TN753B 8 ports for immediate-start and wink-start, direct inward dialing (DID) trunks

	Universal DS1 / ISDN Trunk Circuit Card TN464GP Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels)

	16 Port Analog Station Circuit Card TN746B 16 port analog interface

	8 Port Digital Station Circuit Card TN754C Interfaces to eight 4-wire Digital Voice Terminals

	DS1 / ISDN Trunk Circuit Card TN767E supports DS1 Digital Connectivity

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