Description
NEC SLI (8) U13 ETU 8 port analog card has a built-in ringing generator (RSG) and supports a maximum of eight Single Line Telephones or analogue Voice Mail ports.
This ETU also provides circuitry for loop status detection, talk battery, sending ringing signals, message waiting, and loop disconnect for dial pulse signal detection.
 
Suitable for: NEC Xen Master & Xen Axis Phone Systems
