Chapter 1. Introduction T1 ESF CSU ACE User Manual22 © 2004 ADTRAN, Inc 61204025L1-1BInterface FeaturesNI (Labeled NET)The network interface (NI) port complies with the applicable ANSI and AT&T standards. Its featuresinclude the following:• D4 or ESF framing• AMI or B8ZS coding• Configurable LBO• Network performance monitoring and reporting• Local and remote test loopbacks• Extensive self testTI (Labeled CPE)Features of the terminal interface (TI) include the following:• D4 or ESF framing (independent of NI)• AMI or B8ZS coding• Transmit LBO to 655 feet• DTE loopbackControl Port Input (Labeled EIA-232)Features of the control port include the following:• EIA-232 input from a PC or a modem for control of the T1 ESF CSU ACE• Up to 9600 baud operation• Acts as input for PC or proxy agent control• VT100 terminal interface
