The NT1 ACE4 combines the functionality of four NT1s in a single device. Connection to the ISDN network is accomplished via four U-interfaces. and connection to the subscribers' terminal equipment utilizing four S/T interfaces. The U- and S/T-interfaces on the NT1 ACE4 conform to ANSI and CCITT standards and perform all Layer 1 functions.The NT1 ACE4 is designed with aesthetics as well as functionality in mind. The unit is enclosed in an attractive, durable plastic housing appropriatefor desktop or wall-mount use. The NT1 ACE4 is powered by the external power supply provided with the unit. The unit monitors the S/T-interface for over-current fault conditions. If such a condition occurs, the unit automatically limits the amount of delivered current until the fault condition is removed. The NT1 ACE4 is provides 100 Ohm bus termination and is protected from lightning and harmful line transients on the network interfaces.nEight LED status indicators on the NT1 ACE4 aid in fault isolation. Indicators display the status for Power, Network Ready, Network and Customer Errors, and Network Test.

Features:

• Four NT1s in a single enclosure
• Optimized for 512 kbps video- conferencing applications
• Supports multiple switch vendors; LUCENT 5ESS, Nortel DMS-100(TM), Siemens EWSD, NEC, and National ISDN-1
• LED display to indicate power and network status
• Responds to Quiet Mode and Insertion Loss Test
• Provides automatic over-current protection for S/T power
• Provides U-interface lightning protection
• Standard 5-Year Warranty